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| 1. general description the pca8576f is a peripheral device which interfaces to almost any liquid crystal display (lcd) 1 with low multiplex rates. it generates the drive signals for any static or multiplexed lcd containing up to four backplanes and up to 40 segments. it can be easily cascaded for larger lcd applications. the pca8576f is compatible with most microcontrollers and communicates via the two-line bidirectional i 2 c-bus. communication overheads are minimized by a display ram with auto-incremented addressing, by hardware subaddressing and by display me mory switching (static and duplex drive modes). for a selection of nxp lcd segment drivers, see table 28 on page 47 . 2. features and benefits ? aec-q100 grade 2 compliant for automotive applications ? single chip lcd controller and driver ? selectable backplane drive configuration: static or 2, 3, 4 backplane multiplexing ? selectable display bias configuration: static, 1 2 , or 1 3 ? internal lcd bias generation with voltage-follower buffers ? 40 segment drives: ? up to 20 7-segment numeric characters ? up to 10 14-segment alphanumeric characters ? any graphics of up to 160 elements ? 40 ? 4-bit ram for display data storage ? auto-incremented display data loading across device subaddress boundaries ? display memory bank switching in static and duplex drive modes ? versatile blinking modes ? independent supplies possible for lcd and logic voltages ? wide power supply range: from 1.8 v to 5.5 v ? wide lcd supply range: ? from 2.5 v for low-threshold lcds ? up to 8.0 v for high-threshold twisted nematic lcds ? low power consumption ? 400 khz i 2 c-bus interface ? may be cascaded for large lcd applications (up to 2560 elements possible) ? no external components required ? compatible with chip-on-gla ss and chip-on-board technology pca8576f automotive lcd driver fo r low multiplex rates rev. 1 ? 22 november 2013 product data sheet 1. the definition of the abbreviations and acronyms used in this data sheet can be found in section 19 .
pca8576f all information provided in this document is subject to legal disclaimers. ? nxp b.v. 2013. all rights reserved. product data sheet rev. 1 ? 22 november 2013 2 of 57 nxp semiconductors pca8576f automotive lcd driver for low multiplex rates ? manufactured in silicon gate cmos process 3. ordering information 3.1 ordering options 4. marking table 1. ordering information type number package name description version PCA8576FUG bare die 59 bumps PCA8576FUG table 2. ordering options product type number sales item (12nc) orderable part number ic revision delivery form PCA8576FUG/2da/q1 935302565026 PCA8576FUG/2da/qkp 1 chips in tray table 3. marking codes product type number marking code PCA8576FUG/2da/q1 pc8576f-1 pca8576f all information provided in this document is subject to legal disclaimers. ? nxp b.v. 2013. all rights reserved. product data sheet rev. 1 ? 22 november 2013 3 of 57 nxp semiconductors pca8576f automotive lcd driver for low multiplex rates 5. block diagram fig 1. block diagram of pca8576f d d d / & ' % , $ 6 * ( 1 ( 5 $ 7 2 5 / & ' 9 2 / 7 $ * ( 6 ( / ( & 7 2 5 3 & $ ) % $ & . 3 / $ 1 ( 2 8 7 3 8 7 6 ' , 6 3 / $ < & 2 1 7 5 2 / / ( 5 & 2 0 0 $ 1 ' ' ( & 2 ' ( 5 : 5 , 7 ( ' $ 7 $ & 2 1 7 5 2 / ' , 6 3 / $ < 5 $ 0 ? % , 7 2 8 7 3 8 7 % $ 1 . 6 ( / ( & 7 $ 1 ' % / , 1 . & 2 1 7 5 2 / ' , 6 3 / $ < 5 ( * , 6 7 ( 5 ' , 6 3 / $ < 6 ( * 0 ( 1 7 2 8 7 3 8 7 6 6 8 % $ ' ' 5 ( 6 6 & 2 8 1 7 ( 5 & / 2 & . 6 ( / ( & 7 $ 1 ' 7 , 0 , 1 * 2 6 & , / / $ 7 2 5 , 1 3 8 7 ) , / 7 ( 5 6 % / , 1 . ( 5 7 , 0 ( % $ 6 ( , & % 8 6 & 2 1 7 5 2 / / ( 5 % 3 % 3 % 3 % 3 $ $ $ 6 $ 6 ' $ 6 & / 9 ' ' 2 6 & 6 < 1 & & / . 9 6 6 9 / & ' 6 w r 6 ' $ 7 $ 3 2 , 1 7 ( 5 $ 1 ' $ 8 7 2 , 1 & 5 ( 0 ( 1 7 pca8576f all information provided in this document is subject to legal disclaimers. ? nxp b.v. 2013. all rights reserved. product data sheet rev. 1 ? 22 november 2013 4 of 57 nxp semiconductors pca8576f automotive lcd driver for low multiplex rates 6. pinning information 6.1 pinning viewed from active side. c1 and c2 are a lignment marks. for mechanical details, see figure 31 . fig 2. pinning diagram for PCA8576FUG (bare die) d d d 6 6 6 6 6 6 6 6 6 & 6 6 6 6 6 6 6 6 6 6 6 6 6 6 2 6 & $ 6 < 1 & 6 & / & / . 6 ' $ 6 ' $ 6 ' $ 6 & / 6 6 6 6 6 6 $ $ & 6 $ 9 6 6 % 3 % 3 9 / & ' % 3 % 3 6 6 6 6 3 & $ ) 8 * 9 ' ' 6 6 6 6 6 6 6 pca8576f all information provided in this document is subject to legal disclaimers. ? nxp b.v. 2013. all rights reserved. product data sheet rev. 1 ? 22 november 2013 5 of 57 nxp semiconductors pca8576f automotive lcd driver for low multiplex rates 6.2 pin description [1] the substrate (rear side of the die) is connected to v ss and should be electrically isolated. table 4. pin description input or input/output pins must always be at a defined level (v ss or v dd ) unless otherwise specified. symbol pin description sda 1, 58, 59 i 2 c-bus serial data input and output scl 2, 3 i 2 c-bus serial clock input clk 5 external clock input or output v dd 6 supply voltage sync 4 cascade synchronization input or output; if not used it must be left open osc 7 internal oscillator enable input a0 to a2 8 to 10 subaddress inputs sa0 11 i 2 c-bus address input; bit 0 v ss 12 [1] ground supply voltage v lcd 13 lcd supply voltage bp0, bp2, bp1, bp3 14 to 17 lcd backplane outputs s0 to s39 18 to 57 lcd segment outputs pca8576f all information provided in this document is subject to legal disclaimers. ? nxp b.v. 2013. all rights reserved. product data sheet rev. 1 ? 22 november 2013 6 of 57 nxp semiconductors pca8576f automotive lcd driver for low multiplex rates 7. functional description 7.1 commands of pca8576f the commands available to the pca8576f are defined in ta b l e 5 . [1] not used. all available commands carry a continuation bit c in their most significant bit position as shown in figure 3 . when this bit is set logic 1, it indicates that the next byte of the transfer to arrive will also represent a command. if this bit is set logic 0 , it indicates that the command byte is the last in the transfer. further bytes will be regarded as di splay data (see ta b l e 6 ). 7.1.1 command: mode-set table 5. definition of pca8576f commands command operation code reference bit 7 6 5 4 3 2 1 0 mode-set c 1 0 - [1] e b m[1:0] ta b l e 7 load-data-pointer c 0 p[5:0] ta b l e 8 device-select c1100a[2:0] ta b l e 9 bank-select c 1 1 1 1 0 i o ta b l e 1 0 blink-select c 1 1 1 0 ab bf[1:0] ta b l e 11 fig 3. format of command byte table 6. c bit description bit symbol value description 7c continue bit 0 last control byte in the transfer; next byte will be regarded as display data 1 control bytes continue; next byte will be a command too p v d 5 ( 6 7 2 ) 2 3 & 2 ' ( & 0 6 % / 6 % table 7. mode-set command bit description bit symbol value description 7c0, 1see ta b l e 6 6, 5 - 10 fixed value 4 - - unused 3e display status [1] 0 disabled (blank) [2] 1 enabled pca8576f all information provided in this document is subject to legal disclaimers. ? nxp b.v. 2013. all rights reserved. product data sheet rev. 1 ? 22 november 2013 7 of 57 nxp semiconductors pca8576f automotive lcd driver for low multiplex rates [1] the possibility to disable the display allows implementation of blinking under external control. [2] the display is disabled by setting all backplane and segment outputs to v lcd . [3] not applicable for static drive mode. 7.1.2 command: load-data-pointer 7.1.3 command: device-select 2b lcd bias configuration [3] 0 1 3 bias 1 1 2 bias 1 to 0 m[1:0] lcd drive mode selection 01 static; bp0 10 1:2 multiplex; bp0, bp1 11 1:3 multiplex; bp0, bp1, bp2 00 1:4 multiplex; bp0, bp1, bp2, bp3 table 7. mode-set command bit description ?continued bit symbol value description table 8. load-data-pointer command bit description see section 7.9.5 . bit symbol value description 7c0, 1see ta b l e 6 6 - 0 fixed value 5 to 0 p[5:0] 000000 to 100111 6 bit binary value, 0 to 39; transferred to the data pointer to define one of forty display ram addresses table 9. device-select command bit description see section 7.9.6 . bit symbol value description 7c0, 1see ta b l e 6 6 to 3 - 1100 fixed value 2 to 0 a[2:0] 000 to 111 3 bit binary value, 0 to 7; transferred to the subaddress counter to define one of eight hardware subaddresses pca8576f all information provided in this document is subject to legal disclaimers. ? nxp b.v. 2013. all rights reserved. product data sheet rev. 1 ? 22 november 2013 8 of 57 nxp semiconductors pca8576f automotive lcd driver for low multiplex rates 7.1.4 command: bank-select [1] the bank-select command has no effect in 1:3 and 1:4 multiplex drive modes. 7.1.5 command: blink-select [1] normal blinking is assumed when the lcd multiplex drive modes 1:3 or 1:4 are selected. [2] alternate ram bank blinking does not apply in 1:3 and 1:4 multiplex drive modes. 7.2 initialization at power-on the status of the i 2 c-bus and the registers of the pca8576f is undefined. therefore the pca8576f should be initialized as quickly as possible after power-on to ensure a proper bus communication and to avoid display artifacts. the following instructions should be acco mplished for initialization: ? i 2 c-bus initialization (only necessary if no communication with another i 2 c device on the bus has already taken place). for information about the i 2 c-bus, see section 8 . ? generating a start condition ? sending 0h and ignoring the acknowledge ? generating a stop condition table 10. bank-select command bit description see section 7.9.8.2 and section 7.9.8.3 . bit symbol value description static 1:2 multiplex [1] 7 c 0, 1 see table 6 6 to 2 - 11110 fixed value 1i input bank selection ; storage of arriving display data 0 ram row 0 ram rows 0 and 1 1 ram row 2 ram rows 2 and 3 0o output bank selection ; retrieval of lcd display data 0 ram row 0 ram rows 0 and 1 1 ram row 2 ram rows 2 and 3 table 11. blink-select command bit description see section 7.10 . bit symbol value description 7c0, 1see ta b l e 6 6 to 3 - 1110 fixed value 2ab blink mode selection 0 normal blinking [1] 1 alternate ram bank blinking [2] 1 to 0 bf[1:0] blink frequency selection 00 off 01 1 10 2 11 3 pca8576f all information provided in this document is subject to legal disclaimers. ? nxp b.v. 2013. all rights reserved. product data sheet rev. 1 ? 22 november 2013 9 of 57 nxp semiconductors pca8576f automotive lcd driver for low multiplex rates ? mode-set command (see ta b l e 7 ), setting ? bit e = 0 ? bit b to the required lcd bias configuration ? bits m[1:0] to the required lcd drive mode ? load-data-pointer command (see ta b l e 8 ), setting ? bits p[5:0] to 0h (or any other required address) ? device-select command (see ta b l e 9 ), setting ? bits a[2:0] to the required hardware subaddress (for example, 0h) ? bank-select command (see ta b l e 1 0 ), setting ? bit i to 0 ? bit o to 0 ? blink-select command (see ta b l e 11 ), setting ? bit ab to 0 or 1 ? bits bf[1:0] to 00 (or to a desired blinking mode) ? writing meaningful information (for example, a logo) into the display ram after the initialization, the display can be switched on by setting bit e = 1 with the mode-set command. 7.3 possible display configurations the possible display configurations of the pca8576f depend on the number of active backplane outputs required. a selection of display configurations is shown in table 12 . all of these configurations can be implem ented in the typical system shown in figure 5 . fig 4. example of displa ys suitable for pca8576f v h j p h q w z l w k g r w v h j p h q w z l w k g r w d q g d f f h q w d d d g r w p d w u l [ pca8576f all information provided in this document is subject to legal disclaimers. ? nxp b.v. 2013. all rights reserved. product data sheet rev. 1 ? 22 november 2013 10 of 57 nxp semiconductors pca8576f automotive lcd driver for low multiplex rates [1] 7 segment display has 8 elem ents including the decimal point. [2] 14 segment display has 16 elements including decimal point and accent dot. the host microcontroller maintains the 2-line i 2 c-bus communication channel with the pca8576f. the internal oscillator is enabled by connecting pin osc to pin v ss . the appropriate biasing voltages for the multiplexed lcd waveforms are generated internally. the only other connections required to co mplete the syste m are to the power supplies (v dd , v ss , and v lcd ) and the lcd panel chosen for the application. 7.4 lcd voltage 7.4.1 lcd bias generator fractional lcd biasing voltages are obtained from an internal voltage divider of three impedances connected between pins v lcd and v ss . the center impedance is bypassed by switch if the 1 2 bias voltage level for the 1:2 mult iplex drive mode configuration is selected. the lcd voltage can be temperature compensated externally using the supply to pin v lcd . 7.4.2 lcd voltage selector the lcd voltage selector coordinates the mult iplexing of the lcd in accordance with the selected lcd drive configuration. the operation of the voltage selector is controlled by the mode-set command from the command decoder. the biasing configurations that apply to table 12. selection of possi ble display configurations number of backplanes icons digits/characters dot matrix/ elements 7-segment [1] 14-segment [2] 4 160 20 10 160 (4 ? 40) 3 120 15 7 120 (3 ? 40) 28010580 (2 ? 40) 1405240 (1 ? 40) the resistance of the power lines must be kept to a minimum. for chip-on-glass applications, due to the indium tin oxide (ito) track resistance, each supply line must be routed separately between the chip and the connector. fig 5. typical system configuration d d d 3 & $ ) $ $ $ 6 $ + 2 6 7 0 , & 5 2 & 2 1 7 5 2 / / ( 5 9 ' ' 9 6 6 6 ' $ 6 & / 2 6 & 9 ' ' 9 / & ' 9 6 6 v h j p h q w g u l y h v e d f n s o d q h v / & ' 3 $ 1 ( / x s w r h o h p h q w v 5 ? w u & % pca8576f all information provided in this document is subject to legal disclaimers. ? nxp b.v. 2013. all rights reserved. product data sheet rev. 1 ? 22 november 2013 11 of 57 nxp semiconductors pca8576f automotive lcd driver for low multiplex rates the preferred modes of operatio n, together with the biasing characteristics as functions of v lcd and the resulting discrimina tion ratios (d) are given in ta b l e 1 3 . discrimination is a term which is defined as the ratio of the on and off rms voltage across a segment. it can be thought of as a measurement of contrast. a practical value for v lcd is determined by equating v off(rms) with a defined lcd threshold voltage (v th(off) ), typically when the lcd exhibits approximately 10 % contrast. in the static drive mode a suitable choice is v lcd >3v th(off) . multiplex drive modes of 1:3 and 1:4 with 1 2 bias are possible but the discrimination and hence the contrast ratios are smaller. bias is calculated by , where the values for a are a = 1 for 1 2 bias a = 2 for 1 3 bias the rms on-state voltage (v on(rms) ) for the lcd is calculated with equation 1 : (1) where the values for n are n = 1 for static drive mode n = 2 for 1:2 multiplex drive mode n = 3 for 1:3 multiplex drive mode n = 4 for 1:4 multiplex drive mode the rms off-state voltage (v off(rms) ) for the lcd is calculated with equation 2 : (2) discrimination is the ratio of v on(rms) to v off(rms) and is determined from equation 3 : (3) table 13. biasing characteristics lcd drive mode number of: lcd bias configuration backplanes levels static 1 2 static 0 1 ? 1:2 multiplex 2 3 1 2 0.354 0.791 2.236 1:2 multiplex 2 4 1 3 0.333 0.745 2.236 1:3 multiplex 3 4 1 3 0.333 0.638 1.915 1:4 multiplex 4 4 1 3 0.333 0.577 1.732 v off rms ?? v lcd ------------------------ - v on rms ?? v lcd ----------------------- - d v on rms ?? v off rms ?? ------------------------ - = 1 1a + ------------ - v on rms ?? a 2 2a n ++ n 1a + ?? 2 ? ----------------------------- - v lcd = v off rms ?? a 2 2a ? n + n 1a + ?? 2 ? ----------------------------- - v lcd = d v on rms ?? v off rms ?? ---------------------- - a 2 2a n ++ a 2 2a ? n + --------------------------- == pca8576f all information provided in this document is subject to legal disclaimers. ? nxp b.v. 2013. all rights reserved. product data sheet rev. 1 ? 22 november 2013 12 of 57 nxp semiconductors pca8576f automotive lcd driver for low multiplex rates using equation 3 , the discrimination for an lcd drive mode of 1:3 multiplex with 1 2 bias is and the discrimination for an lcd drive mode of 1:4 multiplex with 1 2 bias is . the advantage of these lcd drive modes is a reduction of the lcd full scale voltage v lcd as follows: ? 1:3 multiplex ( 1 2 bias): ? 1:4 multiplex ( 1 2 bias): these compare with when 1 3 bias is used. v lcd is sometimes referred as the lcd operating voltage. 7.4.2.1 electro-optical performance suitable values for v on(rms) and v off(rms) are dependent on the lcd liquid used. the rms voltage, at which a pixel will be switched on or off, determine the transmissibility of the pixel. for any given liquid, there are two threshold values defined. one point is at 10 % relative transmission (at v th(off) ) and the other at 90 % relative transmission (at v th(on) ), see figure 6 . for a good contrast performance, the following rules should be followed: (4) (5) v on(rms) and v off(rms) are properties of the display driver and are affected by the selection of a, n (see equation 1 to equation 3 ) and the v lcd voltage. v th(off) and v th(on) are properties of the lcd liquid and can be provided by the module manufacturer. v th(off) is sometimes named v th . v th(on) is sometimes named saturation voltage v sat . it is important to match the module properties to those of the driver in order to achieve optimum performance. 3 1.732 = 21 3 ---------- 1.528 = v lcd 6v off rms ?? ? 2.449v off rms ?? == v lcd 43 ? ?? 3 --------------------- - 2.309v off rms ?? == v lcd 3v off rms ?? = v on rms ?? v th on ?? ? v off rms ?? v th off ?? ? pca8576f all information provided in this document is subject to legal disclaimers. ? nxp b.v. 2013. all rights reserved. product data sheet rev. 1 ? 22 november 2013 13 of 57 nxp semiconductors pca8576f automotive lcd driver for low multiplex rates fig 6. electro-optical characteristic: relative transmission curve of the liquid 9 5 0 6 > 9 @ 2 ) ) 6 ( * 0 ( 1 7 * 5 ( < 6 ( * 0 ( 1 7 2 1 6 ( * 0 ( 1 7 9 w k r i i 9 w k r q 5 h o d w l y h 7 u d q v p l v v l r q d d d pca8576f all information provided in this document is subject to legal disclaimers. ? nxp b.v. 2013. all rights reserved. product data sheet rev. 1 ? 22 november 2013 14 of 57 nxp semiconductors pca8576f automotive lcd driver for low multiplex rates 7.4.3 lcd drive mode waveforms 7.4.3.1 static drive mode the static lcd drive mode is used when a single backplane is provided in the lcd. the backplane (bpn) and segment drive (s n ) waveforms for this mode are shown in figure 7 . (1) v state1 (t) = v sn (t) ? v bp0 (t). (2) v on(rms) = v lcd . (3) v state2 (t) = v sn+1 (t) ? v bp0 (t). (4) v off(rms) = 0 v. fig 7. static driv e mode waveforms p j o 9 6 6 9 / & ' 9 6 6 9 / & ' 9 6 6 9 / & ' 9 / & ' 9 / & ' 9 / & ' 9 / & ' v w d w h 9 % 3 6 q 6 q v w d w h 9 d : d y h i r u p v d w g u l y h u e 5 h v x o w d q w z d y h i r u p v d w / & ' v h j p h q w / & ' v h j p h q w v v w d w h r q v w d w h r i i 7 i u pca8576f all information provided in this document is subject to legal disclaimers. ? nxp b.v. 2013. all rights reserved. product data sheet rev. 1 ? 22 november 2013 15 of 57 nxp semiconductors pca8576f automotive lcd driver for low multiplex rates 7.4.3.2 1:2 multiplex drive mode the 1:2 multiplex drive mode is used when tw o backplanes are provided in the lcd. this mode allows fractional lcd bias voltages of 1 2 bias or 1 3 bias as shown in figure 8 and figure 9 . (1) v state1 (t) = v sn (t) ? v bp0 (t). (2) v on(rms) = 0.791v lcd . (3) v state2 (t) = v sn+1 (t) ? v bp1 (t). (4) v off(rms) = 0.354v lcd . fig 8. waveforms for the 1:2 multiplex drive mode with 1 2 bias p j o v w d w h % 3 d : d y h i r u p v d w g u l y h u e 5 h v x o w d q w z d y h i r u p v d w / & ' v h j p h q w / & ' v h j p h q w v v w d w h % 3 v w d w h v w d w h 9 6 6 9 / & ' 9 / & ' 9 6 6 9 6 6 9 / & ' 9 / & ' 9 6 6 9 / & ' 9 / & ' 9 / & ' 9 9 9 / & ' 9 / & ' 9 / & ' 9 / & ' 9 / & ' 9 / & ' 9 / & ' 6 q 6 q 7 i u pca8576f all information provided in this document is subject to legal disclaimers. ? nxp b.v. 2013. all rights reserved. product data sheet rev. 1 ? 22 november 2013 16 of 57 nxp semiconductors pca8576f automotive lcd driver for low multiplex rates (1) v state1 (t) = v sn (t) ? v bp0 (t). (2) v on(rms) = 0.745v lcd . (3) v state2 (t) = v sn+1 (t) ? v bp1 (t). (4) v off(rms) = 0.333v lcd . fig 9. waveforms for the 1:2 multiplex drive mode with 1 3 bias p j o v w d w h % 3 d : d y h i r u p v d w g u l y h u e 5 h v x o w d q w z d y h i r u p v d w / & ' v h j p h q w / & ' v h j p h q w v v w d w h % 3 v w d w h v w d w h 9 6 6 9 / & ' 9 / & ' 9 / & ' 9 6 6 9 / & ' 9 / & ' 9 / & ' 9 6 6 9 / & ' 9 / & ' 9 / & ' 9 9 / & ' 9 / & ' 9 / & ' 9 / & ' 9 / & ' 9 / & ' 9 / & ' 9 9 / & ' 9 / & ' 9 / & ' 9 / & ' 9 / & ' 6 q 6 q 7 i u 9 6 6 9 / & ' 9 / & ' 9 / & ' pca8576f all information provided in this document is subject to legal disclaimers. ? nxp b.v. 2013. all rights reserved. product data sheet rev. 1 ? 22 november 2013 17 of 57 nxp semiconductors pca8576f automotive lcd driver for low multiplex rates 7.4.3.3 1:3 multiplex drive mode when three backplanes are provided in the lcd, the 1:3 multiplex drive mode applies (see figure 10 ). (1) v state1 (t) = v sn (t) ? v bp0 (t). (2) v on(rms) = 0.638v lcd . (3) v state2 (t) = v sn+1 (t) ? v bp1 (t). (4) v off(rms) = 0.333v lcd . fig 10. waveforms for the 1:3 multiplex drive mode with 1 3 bias p j o v w d w h % 3 e 5 h v x o w d q w z d y h i r u p v d w / & ' v h j p h q w / & ' v h j p h q w v v w d w h % 3 v w d w h v w d w h d : d y h i r u p v d w g u l y h u % 3 6 q 6 q 6 q 7 i u 9 6 6 9 / & ' 9 / & ' 9 / & ' 9 6 6 9 / & ' 9 / & ' 9 / & ' 9 6 6 9 / & ' 9 / & ' 9 / & ' 9 6 6 9 / & ' 9 / & ' 9 / & ' 9 6 6 9 / & ' 9 / & ' 9 / & ' 9 9 / & ' 9 / & ' 9 / & ' 9 / & ' 9 / & ' 9 / & ' 9 9 / & ' 9 / & ' 9 / & ' 9 / & ' 9 / & ' 9 / & ' 9 6 6 9 / & ' 9 / & ' 9 / & ' pca8576f all information provided in this document is subject to legal disclaimers. ? nxp b.v. 2013. all rights reserved. product data sheet rev. 1 ? 22 november 2013 18 of 57 nxp semiconductors pca8576f automotive lcd driver for low multiplex rates 7.4.3.4 1:4 multiplex drive mode when four backplanes are provided in the lcd, the 1:4 multiplex drive mode applies (see figure 11 ). (1) v state1 (t) = v sn (t) ? v bp0 (t). (2) v on(rms) = 0.577v lcd . (3) v state2 (t) = v sn+1 (t) ? v bp1 (t). (4) v off(rms) = 0.333v lcd . fig 11. waveforms for the 1:4 multiplex drive mode with 1 3 bias p j o v w d w h % 3 e 5 h v x o w d q w z d y h i r u p v d w / & ' v h j p h q w / & ' v h j p h q w v v w d w h % 3 v w d w h v w d w h % 3 d : d y h i r u p v d w g u l y h u % 3 6 q 6 q 6 q 6 q 7 i u 9 6 6 9 / & ' 9 / & ' 9 / & ' 9 6 6 9 / & ' 9 / & ' 9 / & ' 9 6 6 9 / & ' 9 / & ' 9 / & ' 9 6 6 9 / & ' 9 / & ' 9 / & ' 9 6 6 9 / & ' 9 / & ' 9 / & ' 9 6 6 9 / & ' 9 / & ' 9 / & ' 9 6 6 9 / & ' 9 / & ' 9 / & ' 9 9 / & ' 9 / & ' 9 / & ' 9 / & ' 9 / & ' 9 / & ' 9 9 / & ' 9 / & ' 9 / & ' 9 / & ' 9 / & ' 9 / & ' 9 6 6 9 / & ' 9 / & ' 9 / & ' pca8576f all information provided in this document is subject to legal disclaimers. ? nxp b.v. 2013. all rights reserved. product data sheet rev. 1 ? 22 november 2013 19 of 57 nxp semiconductors pca8576f automotive lcd driver for low multiplex rates 7.5 oscillator 7.5.1 internal clock the internal logic of the pca8576f and its lcd drive signals are timed either by its internal oscillator or by an exte rnal clock. the internal osc illator is enabled by connecting pin osc to pin v ss . if the internal oscillator is used, the output from pin clk can be used as the clock signal for several pca8576fs in the system that are connected in cascade. 7.5.2 external clock pin clk is enabled as an external clock input by connecting pin osc to v dd . the lcd frame signal frequency is determined by the clock frequency (f clk ). remark: a clock signal must always be supplied to the device; removing the clock may freeze the lcd in a dc state, which is not suitable for the liquid crystal. 7.5.3 timing and frame frequency the pca8576f timing controls the internal da ta flow of the device. this includes the transfer of display data from the display ram to the display segment outputs. in cascaded applications, the correct timing relationship between each pca8576f in the system is maintained by the synchronization signal at pin sync . the timing also generates the lcd frame signal whose frequency is derived from the clock frequency. the frame signal frequency is a fixed division of the clock frequ ency from either the internal or an external clock: . 7.6 segment outputs the lcd drive section includes 40 segment outputs s0 to s39 which should be connected directly to the lcd. the segment output signals are generated in accordance with the multiplexed backplane signals and with data residing in the display latch. when less than 40 segment outputs are required, the unused segment outputs should be left open-circuit. 7.7 backplane outputs the lcd drive section includes four backplane outputs bp0 to bp3 which must be connected directly to the lcd. the backplane output signals are generated in accordance with the selected lcd drive mode. if less than four backplane outputs are required, the unused outputs can be left open-circuit. ta b l e 1 4 describes which outputs are active for each of the multiplex drive modes and what signal is generated. f fr f clk 24 ------- = pca8576f all information provided in this document is subject to legal disclaimers. ? nxp b.v. 2013. all rights reserved. product data sheet rev. 1 ? 22 november 2013 20 of 57 nxp semiconductors pca8576f automotive lcd driver for low multiplex rates [1] these pins may optionally be connected to the di splay to improve drive strength. connect only with the corresponding output pin carrying the same signal. if not required, they can be left open-circuit. 7.8 display register the display latch holds the display data wh ile the corresponding multiplex signals are generated. 7.9 display ram the display ram is a static 40 ? 4-bit ram which stores lcd data. there is a one-to-one correspondence between ? the bits in the ram bitmap and the lcd elements ? the ram columns and the segment outputs ? the ram rows and the backplane outputs. a logic 1 in the ram bitmap indicates the on-state of the corresponding lcd element; similarly, a logic 0 indicates the off-state. the display ram bit map, figure 12 , shows the rows 0 to 3 which correspond with the backplane outputs bp0 to bp3, and the columns 0 to 39 which correspond with the segment outputs s0 to s39. in multiplexed lcd applications the segment data of the first, second, third and fourth row of the display ram are time-multiplexed with bp0, bp1, bp2, and bp3 respectively. table 14. mapping of output pins and corresponding output signals with respect to the multiplex driving mode multiplex drive mode output pin bp0 bp1 bp2 bp3 signal 1:4 bp0 bp1 bp2 bp3 1:3 bp0 bp1 bp2 bp1 [1] 1:2 bp0 bp1 bp0 [1] bp1 [1] static bp0 bp0 [1] bp0 [1] bp0 [1] the display ram bitmap shows the direct relationship between the display ram column and the segment outputs; and between the bits in a ram row and the backplane outputs. fig 12. display ram bit map g l v s o d \ 5 $ 0 d g g u h v v h v f r o x p q v v h j p h q w r x w s x w v 6 g l v s o d \ 5 $ 0 e l w v u r z v e d f n s o d q h r x w s x w v % 3 p e h xxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxxxxxxxxx xxxxxxx x x x xxxxxxxxxxxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxx xx xx xxxxx xxxxxxxxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxx xxxxxx xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxx x x xxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxxxxxxxxxxxxx xxxxx xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx xxxxxxxx xxxxxxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxxx xxx pca8576f all information provided in this document is subject to legal disclaimers. ? nxp b.v. 2013. all rights reserved. product data sheet rev. 1 ? 22 november 2013 21 of 57 nxp semiconductors pca8576f automotive lcd driver for low multiplex rates x = data bit unchanged. fig 13. relationship between lcd layout, drive mode, display ram filling order and display data transmitted over the i 2 c-bus d d m d f e ' 3 i h j g 0 6 % / 6 % e ' 3 f d g j i h 0 6 % / 6 % d e i j h f g ' 3 0 6 % / 6 % f e d i j h g ' 3 0 6 % / 6 % g u l y h p r g h v w d w l f p x o w l s o h [ p x o w l s o h [ p x o w l s o h [ / & ' v h j p h q w v / & ' e d f n s o d q h v g l v s o d \ 5 $ 0 i l o o l q j r u g h u w u d q v p l w w h g g l v s o d \ e \ w h % 3 % 3 % 3 % 3 % 3 % 3 % 3 % 3 % 3 % 3 q f [ [ [ e [ [ [ d [ [ [ i [ [ [ j [ [ [ h [ [ [ g [ [ [ ' 3 [ [ [ q q q q q q q u r z v g l v s o d \ 5 $ 0 u r z v e d f n s o d q h r x w s x w v % 3 e \ w h f r o x p q v g l v s o d \ 5 $ 0 d g g u h v v v h j p h q w r x w s x w v v q d e [ [ i j [ [ h f [ [ g ' 3 [ [ q q q e \ w h e \ w h u r z v g l v s o d \ 5 $ 0 u r z v e d f n s o d q h r x w s x w v % 3 f r o x p q v g l v s o d \ 5 $ 0 d g g u h v v v h j p h q w r x w s x w v v q e ' 3 f [ d g j [ i h [ [ q q e \ w h e \ w h e \ w h u r z v g l v s o d \ 5 $ 0 u r z v e d f n s o d q h r x w s x w v % 3 f r o x p q v g l v s o d \ 5 $ 0 d g g u h v v v h j p h q w r x w s x w v v q q d f e ' 3 i h j g e \ w h e \ w h e \ w h e \ w h e \ w h u r z v g l v s o d \ 5 $ 0 u r z v e d f n s o d q h r x w s x w v % 3 f r o x p q v g l v s o d \ 5 $ 0 d g g u h v v v h j p h q w r x w s x w v v 6 q 6 q 6 q 6 q ' 3 d i e j h f g 6 q 6 q 6 q 6 q 6 q 6 q 6 q 6 q ' 3 d i e j h f g 6 q 6 q 6 q ' 3 d i e j h f g 6 q 6 q ' 3 d i e j h f g pca8576f all information provided in this document is subject to legal disclaimers. ? nxp b.v. 2013. all rights reserved. product data sheet rev. 1 ? 22 november 2013 22 of 57 nxp semiconductors pca8576f automotive lcd driver for low multiplex rates when display data is transmitted to the pca8 576f, the received display bytes are stored in the display ram in accordance with the se lected lcd drive mode. the data is stored as it arrives and depending on the current multiplex drive mode the bits are stored singularly, in pairs, triples, or quadrupl es. to illustrate the filling order , an example of a 7-segment display showing all drive modes is given in figure 13 ; the ram filling organization depicted applies equally to other lcd types, see section 7.9.1 to section 7.9.4 . 7.9.1 ram filling in static drive mode in the static drive mode the eight transmitte d data bits are placed in eight successive display ram columns in row 0 (see figure 14 ). 7.9.2 ram filling in 1:2 multiplex drive mode in the 1:2 multiplex drive mode the eight tr ansmitted data bits are placed in four successive display ram columns of two rows (see figure 15 ). fig 14. display ram filling order in static drive mode e e e e e e e e 0 6 % / 6 % w u d q v p l w w h g g d w d e \ w h g l v s o d \ 5 $ 0 f r o x p q v v h j p h q w r x w s x w v 6 f r o x p q v g l v s o d \ 5 $ 0 u r z v e d f n s o d q h r x w s x w v % 3 u r z v d d d e e e e e e e e fig 15. display ram filling orde r in 1:2 multiplex drive mode e e e e e e e e e e e e e e e e / 6 % 0 6 % w u d q v p l w w h g g d w d e \ w h d d d g l v s o d \ 5 $ 0 f r o x p q v v h j p h q w r x w s x w v 6 f r o x p q v g l v s o d \ 5 $ 0 u r z v e d f n s o d q h r x w s x w v % 3 u r z v pca8576f all information provided in this document is subject to legal disclaimers. ? nxp b.v. 2013. all rights reserved. product data sheet rev. 1 ? 22 november 2013 23 of 57 nxp semiconductors pca8576f automotive lcd driver for low multiplex rates 7.9.3 ram filling in 1:3 multiplex drive mode in 1:3 multiplex drive mode, t he ram is written as shown in ta b l e 1 5 (see figure 13 as well). if the bit at position bp2/s2 would be writ ten by a second byte tr ansmitted, then the mapping of the segment bits would cha nge as illustrated in ta b l e 1 6 . in the case described in ta b l e 1 6 the ram has to be written entirely and bp2/s2, bp2/s5, bp2/s8 etc. have to be connected to elements on the display. this can be achieved by a combination of writing and re writing the ram like follows: ? in the first write to the ram, bits a7 to a0 are written. ? in the second write, bits b7 to b0 are writt en, overwriting bits a1 and a0 with bits b7 and b6. ? in the third write, bits c7 to c0 are writte n, overwriting bits b1 and b0 with bits c7 and c6. depending on the method of wr iting to the ram (standard or entire filling by rewriting), some elements remain unused or can be used, but it has to be considered in the module layout process as well as in the driver software design. 7.9.4 ram filling in 1:4 multiplex drive mode in the 1:4 multiplex drive mode the eight tr ansmitted data bits are placed in two successive display ram colu mns of four rows (see figure 16 ). table 15. standard ram filling in 1:3 multiplex drive mode assumption: bp2/s2, bp2/s5, bp2/s8 etc. are not connected to any elements on the display. display ram bits (rows)/ backplane outputs (bpn) display ram addresses (columns)/segment outputs (sn) 0 1 2 3 4 5 6 7 8 9 : 0 a7 a4 a1 b7 b4 b1 c7 c4 c1 d7 : 1 a6 a3 a0 b6 b3 b0 c6 c3 c0 d6 : 2 a5 a2 - b5 b2 - c5 c2 - d5 : 3 ----------: table 16. entire ram filling by rewriting in 1:3 multiplex drive mode assumption: bp2/s2, bp2/s5, bp2/s8 etc. are connected to elements on the display. display ram bits (rows)/ backplane outputs (bpn) display ram addresses (columns)/segment outputs (sn) 0 1 2 3 4 5 6 7 8 9 : 0 a7 a4 a1/b7 b4 b1/c7 c4 c1/d7 d4 d1/e7 e4 : 1 a6 a3 a0/b6 b3 b0/c6 c3 c0/d6 d3 d0/e6 e3 : 2 a5 a2 b5 b2 c5 c2 d5 d2 e5 e2 : 3 ----------: pca8576f all information provided in this document is subject to legal disclaimers. ? nxp b.v. 2013. all rights reserved. product data sheet rev. 1 ? 22 november 2013 24 of 57 nxp semiconductors pca8576f automotive lcd driver for low multiplex rates 7.9.5 data pointer the addressing mechanism for the display ram is realized using the data pointer. this allows the loading of an individual display data byte, or a series of display data bytes, into any location of the display ram. the sequen ce commences with the initialization of the data pointer by the load-data-pointer command (see ta b l e 8 ). following this command, an arriving data byte is stored at the display ram address indicated by the data pointer. the filling order is shown in figure 13 . after each byte is stored, the content of the data pointer is automatically incremented by a value dependent on the selected lcd drive mode: ? in static drive mode by eight. ? in 1:2 multiplex drive mode by four. ? in 1:3 multiplex drive mode by three. ? in 1:4 multiplex drive mode by two. if an i 2 c-bus data access terminates early then the state of the data pointer is unknown. consequently, the data pointer must be rewritten prior to further ram accesses. 7.9.6 subaddress counter the storage of display data is determined by the contents of the subaddress counter. storage is allowed only when the conten t of the subaddress counter match with the hardware subaddress applied to a0, a1, and a2. the subaddress counter value is defined by the device-select command (see ta b l e 9 ). if the content of the subaddress counter and the hardware subaddress do not match then data storage is inhibited but the data pointer is incremented as if data storage had take n place. the subaddress counter is also incremented when the data pointer overflows. the storage arrangements described lead to ex tremely efficient data loading in cascaded applications. when a series of display byte s are sent to the display ram, automatic wrap-over to the next pca8576f occurs when the last ram address is exceeded. subaddressing across device boundaries is successful even if the change to the next device in the cascade occurs within a transmitted character. fig 16. display ram filling orde r in 1:4 multiplex drive mode e e e e e e e e 0 6 % / 6 % w u d q v p l w w h g g d w d e \ w h e e e e e e e e g l v s o d \ 5 $ 0 f r o x p q v v h j p h q w r x w s x w v 6 f r o x p q v g l v s o d \ 5 $ 0 u r z v e d f n s o d q h r x w s x w v % 3 u r z v d d d pca8576f all information provided in this document is subject to legal disclaimers. ? nxp b.v. 2013. all rights reserved. product data sheet rev. 1 ? 22 november 2013 25 of 57 nxp semiconductors pca8576f automotive lcd driver for low multiplex rates the hardware subaddress must not be changed while the device is being accessed on the i 2 c-bus interface. 7.9.7 writing over the ram address boundary in all multiplex drive modes, depending on the se tting of the data pointer, it is possible to fill the ram over the ram addre ss boundary. if the pca8576f is part of a cascade the additional bits fall into the next device that also generates the acknowledge signal. if the pca8576f is a single device or the last device in a cascade the additional bits will be discarded and no acknowledge signal will be generated. 7.9.8 bank selection 7.9.8.1 ram bank switching the pca8576f includes a ram bank switching feature in the static and 1:2 multiplex drive modes. a bank can be thought of as one ram row or a collection of ram rows (see figure 17 ). the ram bank switching gives the prov ision for preparing display information in an alternative bank and to be able to switch to it once it is complete. there are two banks; bank 0 and bank 1. figure 17 shows the location of these banks relative to the ram map. input and output banks can be set independently from one another with the bank-select command (see table 10 on page 8 ). figure 18 shows the concept. fig 17. ram banks in static and multiplex driving mode 1:2 g l v s o d \ 5 $ 0 d g g u h v v h v f r o x p q v v h j p h q w r x w s x w v 6 g l v s o d \ 5 $ 0 e l w v u r z v e d f n s o d q h r x w s x w v % 3 d d d e d q n e d q n e d q n e d q n 6 w d w l f g u l y h p r g h 0 x o w l s o h [ g u l y h p r g h pca8576f all information provided in this document is subject to legal disclaimers. ? nxp b.v. 2013. all rights reserved. product data sheet rev. 1 ? 22 november 2013 26 of 57 nxp semiconductors pca8576f automotive lcd driver for low multiplex rates in the static drive mode, the bank-select co mmand may request the contents of row 2 to be selected for display instead of the contents of row 0. in the 1:2 multiplex mode, the contents of rows 2 and 3 may be selected instead of rows 0 and 1. this gives the provision for preparing display information in an alternative bank and to be able to switch to it once it is assembled. in figure 19 an example is shown for 1:2 multiplex drive mode where the displayed data is read from the first two rows of the memory (bank 0), while the transmitted data is stored in the second two rows of the memory (bank 1). 7.9.8.2 output bank selector the output bank selector (see ta b l e 1 0 ) selects one of the four rows per display ram address for transfer to the display register. the actual row selected depends on the selected lcd drive mode in operation and on the instant in the multiplex sequence. ? in 1:4 multiplex mode, all ram addresses of row 0 are selected, these are followed by the contents of row 1, 2, and then 3 ? in 1:3 multiplex mode, rows 0, 1, and 2 are selected sequentially ? in 1:2 multiplex mode, rows 0 and 1 are selected ? in static mode, row 0 is selected 7.9.8.3 input bank selector the input bank selector loads display data into the display ram in accordance with the selected lcd drive configuration. display data can be loaded in row 2 in static drive mode or in rows 2 and 3 in 1:2 multiplex drive mode by using the bank-select command (see fig 18. bank selection fig 19. example of the bank-select comm and with multiplex drive mode 1:2 0 , & 5 2 & 2 1 7 5 2 / / ( 5 ' , 6 3 / $ < 5 $ 0 % $ 1 . % $ 1 . d d d l q s x w e d q n v h o h f w l r q f r q w u r o v w k h l q s x w g d w d s d w k r x w s x w e d q n v h o h f w l r q f r q w u r o v w k h r x w s x w g d w d s d w k g l v s o d \ 5 $ 0 f r o x p q v v h j p h q w r x w s x w v 6 f r o x p q v g l v s o d \ 5 $ 0 u r z v e d f n s o d q h r x w s x w v % 3 u r z v d d d w r w k h / & ' r x w s x w 5 $ 0 e d q n l q s x w 5 $ 0 e d q n w r w k h 5 $ 0 pca8576f all information provided in this document is subject to legal disclaimers. ? nxp b.v. 2013. all rights reserved. product data sheet rev. 1 ? 22 november 2013 27 of 57 nxp semiconductors pca8576f automotive lcd driver for low multiplex rates ta b l e 1 0 ). the input bank selector functions inde pendently to the output bank selector. 7.10 blinking the display blinking capabilitie s of the pca8576f are very versatile. the whole display can blink at frequencie s selected by the blink-select command (see table 11 ). the blink frequencies are derived from the clock freque ncy. the ratio between the clock and blink frequencies depends on the blink mode selected (see ta b l e 11 ). an additional feature is for an arbitrary select ion of lcd elements to blink. this applies to the static and 1:2 multiplex drive modes and can be implemented without any communication overheads. by means of the output bank selector, the displayed ram banks are exchanged with alternate ram banks at the blink frequency. this mode can also be specified by the blink-select command. in the 1:3 and 1:4 multiplex modes, where no al ternative ram bank is available, groups of lcd elements can blink by selectively changing the display ram data at fixed time intervals. the entire display can blink at a frequency other than the nominal blink frequency. this can be effectively performed by resetting and setting the display enable bit e at the required rate using the mode-set command (see ta b l e 7 ). [1] blink modes 1, 2 and 3 and the nominal blink frequencies correspond to an oscillator frequency (f clk ) of 4800 hz (see section 13 ). 7.11 display controller the display controller executes the command s identified by the command decoder. it contains the device?s status registers and co ordinates their effects. the display controller is also responsible for loadi ng display data into t he display ram in the correct filling order. table 17. blinking frequencies blink mode normal operating mode ratio nominal blink frequency [1] unit off - blinking off hz 16.2hz 23.1hz 31.6hz f clk 768 --------- - f clk 1536 ------------ - f clk 3072 ------------ - pca8576f all information provided in this document is subject to legal disclaimers. ? nxp b.v. 2013. all rights reserved. product data sheet rev. 1 ? 22 november 2013 28 of 57 nxp semiconductors pca8576f automotive lcd driver for low multiplex rates 8. characteristics of the i 2 c-bus the i 2 c-bus is for bidirectional, two-line communication between different ics or modules. the two lines are a serial data line (sda) and a serial clock line (scl). both lines must be connected to a positive supply via a pull-up resistor when connected to the output stages of a device. data transfer may be initiated only when the bus is not busy. 8.1 bit transfer one data bit is transferred during each clock pulse. the data on the sda line must remain stable during the high period of the clock pulse as changes in the data line at this time will be interpreted as a control signal (see figure 20 ). 8.1.1 start and stop conditions both data and clock lines remain high when the bus is not busy. a high-to-low transition of the data line while the clock is high is defined as the start condition - s. a low-to-high transition of the data line while the clock is high is defined as the stop condition - p. the start and stop condit ions are illustrated in figure 21 . 8.2 system configuration a device generating a message is a transmitter, a device receiving a message is the receiver. the device that controls the message is the master and the devices which are controlled by the master are the slaves. the system configuration is shown in figure 22 . fig 20. bit transfer p e d g d w d o l q h v w d e o h g d w d y d o l g f k d q j h r i g d w d d o o r z h g 6 ' $ 6 & / fig 21. definition of start and stop conditions p e f 6 ' $ 6 & / 3 6 7 2 3 f r q g l w l r q 6 ' $ 6 & / 6 6 7 $ 5 7 f r q g l w l r q pca8576f all information provided in this document is subject to legal disclaimers. ? nxp b.v. 2013. all rights reserved. product data sheet rev. 1 ? 22 november 2013 29 of 57 nxp semiconductors pca8576f automotive lcd driver for low multiplex rates 8.3 acknowledge the number of data bytes transferred between the start and stop conditions from transmitter to receiver is unlim ited. each byte of eight bits is followed by an acknowledge cycle. ? a slave receiver, which is addressed, must generate an acknowledge after the reception of each byte. ? a master receiver must generate an acknowle dge after the reception of each byte that has been clocked out of the slave transmitter. ? the device that acknowledges must pull-down the sda line during the acknowledge clock pulse, so that the sda line is st able low during the high period of the acknowledge related clock pulse (set-up and hold times must be taken into consideration). ? a master receiver must signal an end of da ta to the transmitter by not generating an acknowledge on the last byte that has been cl ocked out of the slave. in this event, the transmitter must leave the data line high to enable the master to generate a stop condition. acknowledgement on the i 2 c-bus is illustrated in figure 23 . fig 22. system configuration p j d 6 ' $ 6 & / 0 $ 6 7 ( 5 7 5 $ 1 6 0 , 7 7 ( 5 5 ( & ( , 9 ( 5 0 $ 6 7 ( 5 7 5 $ 1 6 0 , 7 7 ( 5 6 / $ 9 ( 7 5 $ 1 6 0 , 7 7 ( 5 5 ( & ( , 9 ( 5 6 / $ 9 ( 5 ( & ( , 9 ( 5 0 $ 6 7 ( 5 7 5 $ 1 6 0 , 7 7 ( 5 5 ( & ( , 9 ( 5 fig 23. acknowledgement of the i 2 c-bus p e f 6 6 7 $ 5 7 f r q g l w l r q f o r f n s x o v h i r u d f n q r z o h g j h p h q w q r w d f n q r z o h g j h d f n q r z o h g j h g d w d r x w s x w e \ w u d q v p l w w h u g d w d r x w s x w e \ u h f h l y h u 6 & / i u r p p d v w h u pca8576f all information provided in this document is subject to legal disclaimers. ? nxp b.v. 2013. all rights reserved. product data sheet rev. 1 ? 22 november 2013 30 of 57 nxp semiconductors pca8576f automotive lcd driver for low multiplex rates 8.4 i 2 c-bus controller the pca8576f acts as an i 2 c-bus slave receiver. it does not initiate i 2 c-bus transfers or transmit data to an i 2 c-bus master receiver. the only data output from the pca8576f are the acknowledge signals of the selected devices. device selection depends on the i 2 c-bus slave address, on the transferre d command data and on the hardware subaddress. in single device applications, the hardware subaddress inputs a0, a1, and a2 are normally tied to v ss which defines the hardware subaddress 0. in multiple device applications a0, a1, and a2 are tied to v ss or v dd using a binary coding scheme, so that no two devices with a common i 2 c-bus slave address have the same hardware subaddress. 8.5 input filters to enhance noise immunity in electrically ad verse environments, rc low-pass filters are provided on the sda and scl lines. 8.6 i 2 c-bus protocol two i 2 c-bus slave addresses (0111 000 and 0111 001) are used to address the pca8576f. the entire i 2 c-bus slave address byte is shown in table 18 . the pca8576f is a write-only device and will not respond to a read access, therefore bit 0 should always be logic 0. bit 1 of the sl ave address byte that a pca8576f will respond to, is defined by the leve l tied to its sa0 input (v ss for logic 0 and v dd for logic 1). having two reserved slave addresses allows the following on the same i 2 c-bus: ? up to 16 pca8576f for very large lcd applications ? the use of two types of lcd multiplex drive the i 2 c-bus protocol is shown in figure 24 . the sequence is initiated with a start condition (s) from the i 2 c-bus master which is followed by one of two possible pca8576f slave addresses available. all pca8576fs whose sa0 inputs correspond to bit 0 of the slave address respond by asserting an acknowledge in parallel. this i 2 c-bus transfer is ignored by all pca8576fs whose sa0 inputs are set to the alternative level. table 18. i 2 c slave address byte slave address bit 7 6 5 4 3 2 1 0 msb lsb 011100sa0r/w pca8576f all information provided in this document is subject to legal disclaimers. ? nxp b.v. 2013. all rights reserved. product data sheet rev. 1 ? 22 november 2013 31 of 57 nxp semiconductors pca8576f automotive lcd driver for low multiplex rates after an acknowledgement, one or more command bytes follow, that define the status of each addressed pca8576f. the last command byte sent is identified by resetting its most signif icant bit, continuation bit c, (see section 7.1 ). the command bytes are also acknowledged by all addressed pca8576f on the bus. after the last command byte, one or more display data bytes may follow. display data bytes are stored in the display ram at the ad dress specified by the data pointer and the subaddress counter. both data pointer and subaddress counter are automatically updated and the data directed to the intended pca8576f device. an acknowledgement after each byte is asserted only by the pca8576fs that are addressed via address lines a0, a1, and a2. after the last display byte, the i 2 c-bus master asserts a stop condition (p). alternately a start may be asserted to restart an i 2 c-bus access. fig 24. i 2 c-bus protocol $ $ $ 3 6 $ & & 2 0 0 $ 1 ' ' , 6 3 / $ < ' $ 7 $ 6 v o d y h d g g u h v v e \ w h q ? e \ w h v q ? e \ w h v d f n q r z o h g j h e \ d o o d g g u h v v h g 3 & $ ) v d f n q r z o h g j h e \ $ $ d q g $ v h o h f w h g 3 & $ ) r q o \ x s g d w h g d w d s r l q w h u v d q g l i q h f h v v d u \ v x e d g g u h v v f r x q w h u 5 : d d d pca8576f all information provided in this document is subject to legal disclaimers. ? nxp b.v. 2013. all rights reserved. product data sheet rev. 1 ? 22 november 2013 32 of 57 nxp semiconductors pca8576f automotive lcd driver for low multiplex rates 9. internal circuitry fig 25. device protection circuits 6 $ 9 ' ' 9 ' ' 9 6 6 9 6 6 9 / & ' 9 6 6 6 ' $ p g e 9 6 6 6 & / 9 6 6 & / . 9 ' ' 9 6 6 2 6 & 9 ' ' 9 6 6 6 < 1 & 9 ' ' 9 6 6 $ $ $ 9 ' ' 9 6 6 % 3 % 3 % 3 % 3 9 / & ' 9 6 6 6 w r 6 9 / & ' 9 6 6 pca8576f all information provided in this document is subject to legal disclaimers. ? nxp b.v. 2013. all rights reserved. product data sheet rev. 1 ? 22 november 2013 33 of 57 nxp semiconductors pca8576f automotive lcd driver for low multiplex rates 10. safety notes caution this device is sensitive to electrostatic di scharge (esd). observe precautions for handling electrostatic sensitive devices. such precautions are described in the ansi/esd s20.20 , iec/st 61340-5 , jesd625-a or equivalent standards. caution static voltages across the liquid crystal display can build up when the lcd supply voltage (v lcd ) is on while the ic supply voltage (v dd ) is off, or vice versa. this may cause unwanted display artifacts. to av oid such artifacts, v lcd and v dd must be applied or removed together. caution semiconductors are light sens itive. exposure to light s ources can cause the ic to malfunction. the ic must be protected agains t light. the protection must be applied to all sides of the ic. pca8576f all information provided in this document is subject to legal disclaimers. ? nxp b.v. 2013. all rights reserved. product data sheet rev. 1 ? 22 november 2013 34 of 57 nxp semiconductors pca8576f automotive lcd driver for low multiplex rates 11. limiting values [1] pass level; human body model (hbm) according to ref. 9 ? jesd22-a114 ? . [2] pass level; latch-up testing according to ref. 10 ? jesd78 ? at maximum ambient temperature (t amb(max) ). [3] according to the store and transport requirements (see ref. 13 ? um10569 ? ) the devices have to be stored at a temperature of +8 ? c to +45 ? c and a humidity of 25 % to 75 %. table 19. limiting values in accordance with the absolute maximum rating system (iec 60134). symbol parameter conditions min max unit v dd supply voltage ? 0.5 +6.5 v v lcd lcd supply voltage ? 0.5 +9.0 v v i input voltage on each of the pins clk, sda, scl, sync , sa0, osc, a0 to a2 ? 0.5 +6.5 v v o output voltage on each of the pins s0 to s39, bp0 to bp3 ? 0.5 +9.0 v i i input current ? 10 +10 ma i o output current ? 10 +10 ma i dd supply current ? 50 +50 ma i dd(lcd) lcd supply current ? 50 +50 ma i ss ground supply current ? 50 +50 ma p tot total power dissipation - 400 mw p o output power - 100 mw v esd electrostatic discharge voltage hbm [1] - ? 5000 v i lu latch-up current v lu(vlcd) =11.5v [2] - 200 ma t stg storage temperature [3] ? 65 +150 ? c t amb ambient temperature operating device ? 40 +105 ? c pca8576f all information provided in this document is subject to legal disclaimers. ? nxp b.v. 2013. all rights reserved. product data sheet rev. 1 ? 22 november 2013 35 of 57 nxp semiconductors pca8576f automotive lcd driver for low multiplex rates 12. static characteristics table 20. static characteristics v dd = 1.8 v to 5.5 v; v ss = 0 v; v lcd = 2.5 v to 8.0 v; t amb = ? 40 ? c to +105 ? c; unless otherwise specified. symbol parameter conditions min typ max unit supplies v dd supply voltage v lcd ? 6.5 v 1.8 - 5.5 v v lcd > 6.5 v 2.5 - 5.5 v v lcd lcd supply voltage v dd < 2.5 v 2.5 - 6.5 v v dd ? 2.5 v 2.5 - 8.0 v i dd supply current f clk(ext) = 1536 hz [1] [2] -620 ? a v dd =3.0v; t amb =25 ? c -2.7- ? a i dd(lcd) lcd supply current f clk(ext) = 1536 hz [1] -1830 ? a v dd(lcd) =3.0v; t amb =25 ? c - 17.5 - ? a logic [3] v il low-level input voltage on pins clk, sync , osc, a0 to a2, sa0, scl, sda v ss -0.3v dd v v ih high-level input voltage on pins clk, sync , osc, a0 to a2, sa0, scl, sda [4] [5] 0.7v dd -v dd v i ol low-level output current output sink current; v ol = 0.4 v; v dd =5v on pins clk and sync 1- - ma on pin sda 3 - - ma i oh(clk) high-level output current on pi n clk output source current; v oh =4.6v; v dd =5v 1- - ma i l leakage current v i =v dd or v ss ; on pins clk, scl, sda, a0 to a2 and sa0 ? 1- +1 ? a i l(osc) leakage current on pin osc v i =v dd ? 1- +1 ? a c i input capacitance [6] --7pf pca8576f all information provided in this document is subject to legal disclaimers. ? nxp b.v. 2013. all rights reserved. product data sheet rev. 1 ? 22 november 2013 36 of 57 nxp semiconductors pca8576f automotive lcd driver for low multiplex rates [1] lcd outputs are open-circuit; inputs at v ss or v dd ; external clock with 50 % duty factor; i 2 c-bus inactive. [2] for typical values, see figure 26 . [3] the i 2 c-bus interface of pca8576f is 5 v tolerant. [4] when tested, i 2 c pins scl and sda have no diode to v dd and may be driven to the v i limiting values given in ta b l e 1 9 (see figure 25 as well). [5] propagation delay of driver between clock (clk) and lcd driving signals. [6] periodically sampled, not 100 % tested. [7] outputs measured one at a time. lcd outputs ? v o output voltage variation on pins bp0 to bp3 and s0 to s39 ? 100 - +100 mv r o output resistance v lcd = 5 v [7] on pins bp0 to bp3 - 1.5 - k ? on pins s0 to s39 - 6.0 - k ? table 20. static characteristics ?continued v dd = 1.8 v to 5.5 v; v ss = 0 v; v lcd = 2.5 v to 8.0 v; t amb = ? 40 ? c to +105 ? c; unless otherwise specified. symbol parameter conditions min typ max unit t amb =30 ? c; 1:4 multiplex drive mode; v lcd = 6.5 v; f clk(ext) = 1.536 khz; all ram written with logic 1; no display connected; i 2 c-bus inactive. fig 26. typical i dd with respect to v dd 9 ' ' 9 d d o , ' ' ? $ pca8576f all information provided in this document is subject to legal disclaimers. ? nxp b.v. 2013. all rights reserved. product data sheet rev. 1 ? 22 november 2013 37 of 57 nxp semiconductors pca8576f automotive lcd driver for low multiplex rates 13. dynamic characteristics [1] typical output duty factor: 50 % measured at the clk output pin. [2] not tested in production. [3] all timing values are valid within the operating supply voltage and ambient temperature range and are referenced to v il and v ih with an input voltage swing of v ss to v dd . table 21. dynamic characteristics v dd = 1.8 v to 5.5 v; v ss = 0 v; v lcd = 2.5 v to 8.0 v; t amb = ? 40 ? c to +105 ? c; unless otherwise specified. symbol parameter conditions min typ max unit clock f clk(int) internal clock frequency [1] 3505 4800 6240 hz f clk(ext) external clock frequency 960 - 6720 hz f fr frame frequency internal clock 146 200 260 hz external clock 40 - 280 hz t clk(h) high-level clock time 60 - - ? s t clk(l) low-level clock time 60 - - ? s synchronization t pd(sync_n) sync propagation delay - 30 - ns t sync_nl sync low time 1 - - ? s t pd(drv) driver propagation delay v lcd = 5 v [2] --30 ? s i 2 c-bus [3] pin scl f scl scl clock frequency - - 400 khz t low low period of the scl clock 1.3 - - ? s t high high period of the scl clock 0.6 - - ? s pin sda t su;dat data set-up time 100 - - ns t hd;dat data hold time 0 - - ns pins scl and sda t buf bus free time between a stop and start condition 1.3 - - ? s t su;sto set-up time for stop condition 0.6 - - ? s t hd;sta hold time (repeated) start condition 0.6 - - ? s t su;sta set-up time for a repeated start condition 0.6 - - ? s t r rise time of both sda and scl signals f scl = 400 khz - - 0.3 ? s f scl < 125 khz - - 1.0 ? s t f fall time of both sda and scl signals - - 0.3 ? s c b capacitive load for each bus line - - 400 pf t w(spike) spike pulse width on the i 2 c-bus--50ns pca8576f all information provided in this document is subject to legal disclaimers. ? nxp b.v. 2013. all rights reserved. product data sheet rev. 1 ? 22 november 2013 38 of 57 nxp semiconductors pca8576f automotive lcd driver for low multiplex rates fig 27. driver timing waveforms fig 28. i 2 c-bus timing waveforms d d d w 3 ' g u y w 6 < 1 & b 1 / w 3 ' 6 < 1 & b 1 & / . 6 < 1 & % 3 q 6 q w f o n + w f o n / i f o n 9 ' ' 9 ' ' 9 ' ' 9 ' ' 6 ' $ p j d 6 ' $ 6 & / w 6 8 6 7 $ w 6 8 6 7 2 w + ' 6 7 $ w % 8 ) w / 2 : w + ' ' $ 7 w + , * + w u w i w 6 8 ' $ 7 pca8576f all information provided in this document is subject to legal disclaimers. ? nxp b.v. 2013. all rights reserved. product data sheet rev. 1 ? 22 november 2013 39 of 57 nxp semiconductors pca8576f automotive lcd driver for low multiplex rates 14. application information 14.1 cascaded operation in large display configuratio ns, up to 16 pca8576fs can be differentiated on the same i 2 c-bus by using the 3-bit hardware subaddresses (a0, a1 and a2) and the programmable i 2 c-bus slave address (sa0). pca8576fs connected in cascade are synchronized to allow the backplane signals from only one device in the cascade to be shared. this arrangement is cost-effective in large lcd applications since the backplane ou tputs of only one device need to be through-plated to the backplane electrodes of the display. the other pca8576f of the cascade contribute additional segment output s. the backplanes can either be connected together to enhance the drive ca pability or some can be left open-circuit (suc h as the ones from the slave in figure 29 ) or just some of the master an d some of the slave will be taken to facilitate the layout of the display. all pca8576fs connected in cascade are co rrectly synchronized by the automatically generated sync signal. the only time that sync is likely to be needed is if synchronization is lost accidentally, for example, by noise in adverse electrical environments, or if the lcd multiplex dr ive mode is changed in an application using several cascaded pca8576fs, as the drive mode cannot be changed on all of the cascaded devices simultaneously. sync can be either an input or an output signal; a sync output is implemented as an open-drain driver with an internal pull-up resistor. the pca8576f asserts sync at the start of its last active backplane signal and monitors the sync line at all other times. if cascade synchroniza tion is lost, it is restored by the first pca8576f to assert sync . the timing relationship between the backplane waveforms and the sync signal for each lcd drive mode is shown in figure 30 . table 22. addressing cascaded pca8576f cluster bit sa0 pin a2 pin a1 pin a0 device 100000 0011 0102 0113 1004 1015 1106 1117 210008 0019 01010 01111 10012 10113 11014 11115 pca8576f all information provided in this document is subject to legal disclaimers. ? nxp b.v. 2013. all rights reserved. product data sheet rev. 1 ? 22 november 2013 40 of 57 nxp semiconductors pca8576f automotive lcd driver for low multiplex rates the contact resistance between the sync on each cascaded devi ce must be controlled. if the resistance is too high, the device is no t able to synchronize properly; this is particularly applicable to chip-on-glass applications. the maximum sync contact resistance allowed for the number of devices in cascade is given in ta b l e 2 3 . figure 27 and figure 28 show the timing of the synchronization signals. table 23. sync contact resistance number of devices maximum contact resistance 26 k ? 3 to 5 2.2 k ? 6 to 10 1.2 k ? 10 to 16 700 ? fig 29. cascaded pca8576f configuration d d d 3 & $ ) $ $ $ 6 $ + 2 6 7 0 , & 5 2 & 2 1 7 5 2 / / ( 5 9 ' ' 9 / & ' 9 6 6 6 ' $ 6 & / 6 < 1 & & / . 2 6 & 9 ' ' 9 / & ' 9 6 6 v h j p h q w g u l y h v % 3 w r % 3 e d f n s o d q h v / & ' 3 $ 1 ( / x s w r h o h p h q w v 5 ? w u & % 3 & $ ) $ $ $ 6 $ 6 ' $ 6 & / 6 < 1 & & / . 2 6 & 9 ' ' 9 / & ' 9 6 6 v h j p h q w g u l y h v % 3 w r % 3 r s h q f l u f x l w pca8576f all information provided in this document is subject to legal disclaimers. ? nxp b.v. 2013. all rights reserved. product data sheet rev. 1 ? 22 november 2013 41 of 57 nxp semiconductors pca8576f automotive lcd driver for low multiplex rates fig 30. synchronization of the cascade for the various pca8576f drive modes 7 i u i i u % 3 6 < 1 & % 3 e l d v 6 < 1 & % 3 e l d v d v w d w l f g u l y h p r g h e p x o w l s o h [ g u l y h p r g h f p x o w l s o h [ g u l y h p r g h g p x o w l s o h [ g u l y h p r g h % 3 e l d v 6 < 1 & 6 < 1 & % 3 e l d v p j o pca8576f all information provided in this document is subject to legal disclaimers. ? nxp b.v. 2013. all rights reserved. product data sheet rev. 1 ? 22 november 2013 42 of 57 nxp semiconductors pca8576f automotive lcd driver for low multiplex rates 15. bare die outline fig 31. bare die outline PCA8576FUG (for dimensions see table 24 ) 5 h i h u h q f h v 2 x w o l q h y h u v l r q ( x u r s h d q s u r m h f w l r q , v v x h g d w h , ( & - ( ' ( & - ( , 7 $ 3 & $ ) 8 * s f d i x j b g d b g r % d u h g l h e x p s v 3 & $ ) 8 * h ; \ [ ' ( & & g h w d l o ; e / 1 r w h v 0 d u n l q j f r g h 3 & ) p p v f d o h < g h w d l o < $ $ $ pca8576f all information provided in this document is subject to legal disclaimers. ? nxp b.v. 2013. all rights reserved. product data sheet rev. 1 ? 22 november 2013 43 of 57 nxp semiconductors pca8576f automotive lcd driver for low multiplex rates [1] dimension not drawn to scale. table 24. dimensions of PCA8576FUG original dimensions are in mm. unit (mm) a a 1 a 2 b d e e [1] l max-0.012------ nom 0.40 0.015 0.381 0.052 2.2 2.0 - 0.077 min - 0.018 - - - - 0.072 - table 25. bump location for PCA8576FUG all x/y coordinates represent the position of the center of each pad with respect to the center (x/y = 0) of the chip (see figure 2 , and figure 31 ). symbol pad x ( ? m) y ( ? m) description sda 1 ? 34.38 ? 876.6 i 2 c-bus serial data input/output scl 2 109.53 ? 876.6 i 2 c-bus serial clock input scl 3 181.53 ? 876.6 sync 4 365.58 ? 876.6 cascade synchronization input/output clk 5 469.08 ? 876.6 external clock input/output v dd 6 577.08 ? 876.6 supply voltage osc 7 740.88 ? 876.6 internal oscillator enable input a0 8 835.83 ? 876.6 subaddress inputs a1 9 1005.48 ? 630.9 a2 10 1005.48 ? 513.9 sa0 11 1005.48 ? 396.9 i 2 c-bus address input; bit 0 v ss 12 1005.48 ? 221.4 ground supply voltage v lcd 13 1005.48 10.71 lcd supply voltage bp0 14 1005.48 156.51 lcd backplane outputs bp2 15 1005.48 232.74 bp1 16 1005.48 308.97 bp3 17 1005.48 385.2 s0 18 1005.48 493.2 lcd segment outputs s1 19 1005.48 565.2 s2 20 1005.48 637.2 s3 21 1005.48 709.2 s4 22 347.22 876.6 s5 23 263.97 876.6 s6 24 180.72 876.6 s7 25 97.47 876.6 s8 26 14.22 876.6 s9 27 ? 69.03 876.6 s10 28 ? 152.28 876.6 s11 29 ? 235.53 876.6 s12 30 ? 318.78 876.6 s13 31 ? 402.03 876.6 pca8576f all information provided in this document is subject to legal disclaimers. ? nxp b.v. 2013. all rights reserved. product data sheet rev. 1 ? 22 november 2013 44 of 57 nxp semiconductors pca8576f automotive lcd driver for low multiplex rates s14 32 ? 485.28 876.6 lcd segment outputs s15 33 ? 568.53 876.6 s16 34 ? 651.78 876.6 s17 35 ? 735.03 876.6 s18 36 ? 1005.5 625.59 s19 37 ? 1005.5 541.62 s20 38 ? 1005.5 458.19 s21 39 ? 1005.5 374.76 s22 40 ? 1005.5 291.33 s23 41 ? 1005.5 207.9 s24 42 ? 1005.5 124.47 s25 43 ? 1005.5 41.04 s26 44 ? 1005.5 ? 42.39 s27 45 ? 1005.5 ? 125.8 s28 46 ? 1005.5 ? 209.3 s29 47 ? 1005.5 ? 292.7 s30 48 ? 1005.5 ? 376.1 s31 49 ? 1005.5 ? 459.5 s32 50 ? 1005.5 ? 543 s33 51 ? 1005.5 ? 625.6 s34 52 ? 735.03 ? 876.6 s35 53 ? 663.03 ? 876.6 s36 54 ? 591.03 ? 876.6 s37 55 ? 519.03 ? 876.6 s38 56 ? 447.03 ? 876.6 s39 57 ? 375.03 ? 876.6 sda 58 ? 196.38 ? 876.6 i 2 c-bus serial data input/output sda 59 ? 106.38 ? 876.6 table 26. alignment marks all x/y coordinates represent the position of the ce nter of each alignment mark with respect to the center (x/y = 0) of the chip (see figure 2 , and figure 31 ). symbol location dimension x ( ? m) y ( ? m) diameter ( ? m) c1 930.42 ? 870.3 72 c2 ? 829.98 ? 870.3 72 table 25. bump location for PCA8576FUG ?continued all x/y coordinates represent the position of the center of each pad with respect to the center (x/y = 0) of the chip (see figure 2 , and figure 31 ). symbol pad x ( ? m) y ( ? m) description pca8576f all information provided in this document is subject to legal disclaimers. ? nxp b.v. 2013. all rights reserved. product data sheet rev. 1 ? 22 november 2013 45 of 57 nxp semiconductors pca8576f automotive lcd driver for low multiplex rates 16. handling information all input and output pins are protected ag ainst electrostatic discharge (esd) under normal handling. when handling metal-oxide semiconductor (mos) devices ensure that all normal precautions are taken as described in jesd625-a , iec 61340-5 or equivalent standards. 17. packing information 17.1 tray information fig 32. tray details g h w d l o ; ; \ [ 0 1 / - . + 6 ( & 7 , 2 1 $ $ $ & $ ' l p h q v l r q v l q p p d d d [ \ % ' ( ) ( ) * $ & 2 pca8576f all information provided in this document is subject to legal disclaimers. ? nxp b.v. 2013. all rights reserved. product data sheet rev. 1 ? 22 november 2013 46 of 57 nxp semiconductors pca8576f automotive lcd driver for low multiplex rates table 27. description of tray details tray details are shown in figure 32 . tray details dimensions abcdefghj kl mnunit 3.6 3.6 2.36 2.11 50.8 45.72 39.6 5.6 5.6 39.6 3.96 2.18 2.49 mm number of pockets x direction y direction 12 12 fig 33. tray alignment d d d p d u n l q j f r g h xxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxxxxxxxxx xxxxxxx x x x xxxxxxxxxxxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxx xx xx xxxxx xxxxxxxxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxx xxxxxx xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxx x x xxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxxxxxxxxxxxxx xxxxx xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx xxxxxxxx xxxxxxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxxx xxx pca8576f all information provided in this document is subject to legal disclaimers. ? nxp b.v. 2013. all rights reserved. product data sheet rev. 1 ? 22 november 2013 47 of 57 nxp semiconductors pca8576f automotive lcd driver for low multiplex rates 18. appendix 18.1 lcd segment driver selection table 28. selection of lcd segment drivers type name number of elements at mux v dd (v) v lcd (v) f fr (hz) v lcd (v) charge pump v lcd (v) temperature compensat. t amb ( ? c) interface package aec- q100 1:1 1:2 1:3 1:4 1:6 1:8 1:9 pca8561ahn [5] 18365472---1.8to5.51.8to5.532 to 256 [1] nn ? 40 to 105 i 2 chvqfn32y pca8561bhn [5] 18365472---1.8to5.51.8to5.532 to 256 [1] nn ? 40 to 105 spi hvqfn32 y pcf8566ts 24487296---2.5to62.5to669 n n ? 40 to 85 i 2 c vso40 n pcf85162t 32 64 96 128 ---1.8to5.52.5to6.582 n n ? 40 to 85 i 2 ctssop48n pca85162t 326496128---1.8to5.52.5to8110 n n ? 40 to 95 i 2 ctssop48y pca85262att326496128---1.8to5.52.5to8200 n n ? 40 to 105 i 2 ctssop48y pcf8551att [5] 3672108144---1.8to5.51.8to5.532 to 128 [1] nn ? 40 to 85 i 2 ctssop48n pcf8551btt [5] 3672108144---1.8to5.51.8to5.532 to 128 [1] nn ? 40 to 85 spi tssop48 n pca8551att [5] 3672108144---1.8to5.51.8to5.532 to 256 [1] nn ? 40 to 105 i 2 ctssop48y pca8551btt [5] 3672108144---1.8to5.51.8to5.532 to 256 [1] nn ? 40 to 105 spi tssop48 y pcf85176t 40 80 120 160 ---1.8to5.52.5to6.582 n n ? 40 to 85 i 2 ctssop56n pca85176t 4080120160---1.8to5.52.5to8110 n n ? 40 to 95 i 2 ctssop56y pca85276att4080120160---1.8to5.52.5to8200 n n ? 40 to 105 i 2 ctssop56y pcf85176h 40 80 120 160 ---1.8to5.52.5to6.582 n n ? 40 to 85 i 2 ctqfp64n pca85176h 4080120160---1.8to5.52.5to882 n n ? 40 to 95 i 2 ctqfp64y pcf8553att [5] 4080120160---1.8to5.51.8to5.532 to 128 [1] nn ? 40 to 85 i 2 ctssop56n pcf8553btt [5] 4080120160---1.8to5.51.8to5.532 to 128 [1] nn ? 40 to 85 spi tssop56 n pca8553att [5] 4080120160---1.8to5.51.8to5.532 to 256 [1] nn ? 40 to 105 i 2 ctssop56y pca8553btt [5] 4080120160---1.8to5.51.8to5.532 to 256 [1] nn ? 40 to 105 spi tssop56 y pca8546att ---176---1.8to5.52.5to960to300 [1] nn ? 40 to 95 i 2 ctssop56y pca8546btt ---176---1.8to5.52.5to960to300 [1] nn ? 40 to 95 spi tssop56 y pca8547aht [5] 4488-176---1.8to5.52.5to960to300 [1] yy [3] ? 40 to 95 i 2 ctqfp64y pca8547bht [5] 4488-176---1.8to5.52.5to960to300 [1] yy [3] ? 40 to 95 spi tqfp64 y pcf85134hl 60 120 180 240 ---1.8to5.52.5to6.582 n n ? 40 to 85 i 2 clqfp80n pca85134h 60120180240---1.8to5.52.5to882 n n ? 40 to 95 i 2 clqfp80y xxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxxxxxxxxx xxxxxxx x x x xxxxxxxxxxxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxx xx xx xxxxx xxxxxxxxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxx xxxxxx xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxx x x xxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxxxxxxxxxxxxx xxxxx xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx xxxxxxxx xxxxxxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxxx xxx pca8576f all information provided in this document is subject to legal disclaimers. ? nxp b.v. 2013. all rights reserved. product data sheet rev. 1 ? 22 november 2013 48 of 57 nxp semiconductors pca8576f automotive lcd driver for low multiplex rates [1] can be selected by command. [2] can be selected by pin configuration. pca8543ahl 60120-240---2.5to5.52.5to960to300 [1] yy ? 40 to 105 i 2 clqfp80y pcf8545att - - - 176 252 320 - 1.8 to 5.5 2.5 to 5.5 60 to 300 [1] nn ? 40 to 85 i 2 ctssop56n pcf8545btt - - - 176 252 320 - 1.8 to 5.5 2.5 to 5.5 60 to 300 [1] nn ? 40 to 85 spi tssop56 n pcf8536at [4] - - - 176 252 320 - 1.8to5.5 2.5to9 60to300 [1] nn ? 40 to 85 i 2 ctssop56n pcf8536bt [4] - - - 176 252 320 - 1.8to5.5 2.5to9 60to300 [1] nn ? 40 to 85 spi tssop56 n pca8536at [4] - - - 176 252 320 - 1.8to5.5 2.5to9 60to300 [1] nn ? 40 to 95 i 2 ctssop56y pca8536bt [4] - - - 176 252 320 - 1.8to5.5 2.5to9 60to300 [1] nn ? 40 to 95 spi tssop56 y pcf8537ah 44 88 - 176 276 352 - 1.8 to 5.5 2.5 to 9 60 to 300 [1] yy [3] ? 40 to 85 i 2 ctqfp64n pcf8537bh 44 88 - 176 276 352 - 1.8 to 5.5 2.5 to 9 60 to 300 [1] yy [3] ? 40 to 85 spi tqfp64 n pca8537ah 44 88 - 176 276 352 - 1.8 to 5.5 2.5 to 9 60 to 300 [1] yy [3] ? 40 to 95 i 2 ctqfp64y pca8537bh 44 88 - 176 276 352 - 1.8 to 5.5 2.5 to 9 60 to 300 [1] yy [3] ? 40 to 95 spi tqfp64 y pca9620h 60 120 - 240 320 480 - 2.5 to 5.5 2.5 to 9 60 to 300 [1] yy [3] ? 40 to 105 i 2 clqfp80y pca9620u 60 120 - 240 320 480 - 2.5 to 5.5 2.5 to 9 60 to 300 [1] yy [3] ? 40 to 105 i 2 c bare die y pcf8552dug [5] 3672108144---1.8to5.51.8to5.532 to 128 [1] nn ? 40 to 85 i 2 c, spi bare die n pca8552dug [5] 3672108144---1.8to5.51.8to5.532 to 256 [1] nn ? 40 to 105 i 2 c, spi bare die y pcf8576du 4080120160---1.8to5.52.5to6.577 n n ? 40 to 85 i 2 c bare die n pcf8576eug 4080120160---1.8to5.52.5to6.577 n n ? 40 to 85 i 2 c bare die n PCA8576FUG 4080120160---1.8to5.52.5to8200 n n ? 40 to 105 i 2 c bare die y pcf85133u 80 160 240 320 ---1.8to5.52.5to6.582, 110 [2] nn ? 40 to 85 i 2 c bare die n pca85133u 80160240320---1.8to5.52.5to882, 110 [2] nn ? 40 to 95 i 2 c bare die y pca85233u 80160240320---1.8to5.52.5to8 150, 220 [2] nn ? 40 to 105 i 2 c bare die y pca8530dug [5] 102204-408---2.5to5.54to1245to300 [1] yy [3] ? 40 to 105 i 2 c, spi bare die y pcf85132u 160 320 480 640 ---1.8to5.51.8to860to90 [1] nn ? 40 to 85 i 2 c bare die n pca85132u 160320480640---1.8to5.51.8to860to90 [1] nn ? 40 to 95 i 2 c bare die y pca85232u 160320480640---1.8to5.51.8to8117to176 [1] nn ? 40 to 95 i 2 c bare die y pcf8538ug 102 204 - 408 612 816 918 2.5 to 5.5 4 to 12 45 to 300 [1] yy [3] ? 40 to 85 i 2 c, spi [2] bare die n pca8538ug 102 204 - 408 612 816 918 2.5 to 5.5 4 to 12 45 to 300 [1] yy [3] ? 40 to 105 i 2 c, spi [2] bare die y table 28. selection of lcd segment drivers ?continued type name number of elements at mux v dd (v) v lcd (v) f fr (hz) v lcd (v) charge pump v lcd (v) temperature compensat. t amb ( ? c) interface package aec- q100 1:1 1:2 1:3 1:4 1:6 1:8 1:9 xxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxxxxxxxxx xxxxxxx x x x xxxxxxxxxxxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxx xx xx xxxxx xxxxxxxxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxx xxxxxx xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxx x x xxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxxxxxxxxxxxxx xxxxx xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx xxxxxxxx xxxxxxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxxx xxx pca8576f all information provided in this document is subject to legal disclaimers. ? nxp b.v. 2013. all rights reserved. product data sheet rev. 1 ? 22 november 2013 49 of 57 nxp semiconductors pca8576f automotive lcd driver for low multiplex rates [3] extra feature: temperature sensor. [4] extra feature: 6 pwm channels. [5] in development. pca8576f all information provided in this document is subject to legal disclaimers. ? nxp b.v. 2013. all rights reserved. product data sheet rev. 1 ? 22 november 2013 50 of 57 nxp semiconductors pca8576f automotive lcd driver for low multiplex rates 19. abbreviations table 29. abbreviations acronym description cdm charged-device model cmos complementary metal-oxide semiconductor hbm human body model ito indium tin oxide lcd liquid crystal display lsb least significant bit mm machine model msb most significant bit msl moisture sensitivity level pcb printed circuit board ram random access memory rms root mean square scl serial clock line sda serial data line smd surface mount device pca8576f all information provided in this document is subject to legal disclaimers. ? nxp b.v. 2013. all rights reserved. product data sheet rev. 1 ? 22 november 2013 51 of 57 nxp semiconductors pca8576f automotive lcd driver for low multiplex rates 20. references [1] an10170 ? design guidelines for cog modules with nxp monochrome lcd drivers [2] an10365 ? surface mount reflow soldering description [3] an10706 ? handling bare die [4] an10853 ? esd and emc sensitivity of ic [5] an11267 ? emc and system level esd design guidelines for lcd drivers [6] iec 60134 ? rating systems for electronic tu bes and valves and analogous semiconductor devices [7] iec 61340-5 ? protection of electronic devices from electrostatic phenomena [8] ipc/jedec j-std-020d ? moisture/reflow sensitiv ity classification for nonhermetic solid state surface mount devices [9] jesd22-a114 ? electrostatic discharge (esd) sensitivity testing human body model (hbm) [10] jesd78 ? ic latch-up test [11] jesd625-a ? requirements for handling elec trostatic-discharge-sensitive (esds) devices [12] um10204 ? i 2 c-bus specification and user manual [13] um10569 ? store and transport requirements pca8576f all information provided in this document is subject to legal disclaimers. ? nxp b.v. 2013. all rights reserved. product data sheet rev. 1 ? 22 november 2013 52 of 57 nxp semiconductors pca8576f automotive lcd driver for low multiplex rates 21. revision history table 30. revision history document id release date data sheet status change notice supersedes pca8576f v.1 20131122 product data sheet - - pca8576f all information provided in this document is subject to legal disclaimers. ? nxp b.v. 2013. all rights reserved. product data sheet rev. 1 ? 22 november 2013 53 of 57 nxp semiconductors pca8576f automotive lcd driver for low multiplex rates 22. legal information 22.1 data sheet status [1] please consult the most recently issued document before initiating or completing a design. [2] the term ?short data sheet? is explained in section ?definitions?. [3] the product status of device(s) described in this document may have changed since this document was published and may differ in case of multiple device s. the latest product status information is available on the internet at url http://www.nxp.com . 22.2 definitions draft ? the document is a draft versi on only. the content is still under internal review and subject to formal approval, which may result in modifications or additions. nxp semiconductors does not give any representations or warranties as to the accuracy or completeness of information included herein and shall hav e no liability for the consequences of use of such information. short data sheet ? a short data sheet is an extract from a full data sheet with the same product type number(s) and title. a short data sheet is intended for quick reference only and should not be relied upon to contain detailed and full information. for detailed and full information see the relevant full data sheet, which is available on request vi a the local nxp semiconductors sales office. in case of any inconsistency or conflict with the short data sheet, the full data sheet shall prevail. product specification ? the information and data provided in a product data sheet shall define the specification of the product as agreed between nxp semiconductors and its customer , unless nxp semiconductors and customer have explicitly agreed otherwis e in writing. in no event however, shall an agreement be valid in which the nxp semiconductors product is deemed to offer functions and qualities beyond those described in the product data sheet. 22.3 disclaimers limited warranty and liability ? information in this document is believed to be accurate and reliable. however, nxp semiconductors does not give any representations or warranties, expressed or implied, as to the accuracy or completeness of such information and shall have no liability for the consequences of use of such info rmation. nxp semiconductors takes no responsibility for the content in this document if provided by an information source outside of nxp semiconductors. in no event shall nxp semiconductors be liable for any indirect, incidental, punitive, special or consequential damages (including - without limitation - lost profits, lost savings, business interrupt ion, costs related to the removal or replacement of any products or rework charges) whether or not such damages are based on tort (including negligence), warranty, breach of contract or any other legal theory. notwithstanding any damages that customer might incur for any reason whatsoever, nxp semiconductors? aggregate and cumulative liability towards customer for the products described herein shall be limited in accordance with the terms and conditions of commercial sale of nxp semiconductors. right to make changes ? nxp semiconductors reserves the right to make changes to information published in this document, including without limitation specifications and product descriptions, at any time and without notice. this document supersedes and replaces all information supplied prior to the publication hereof. suitability for use in automotive applications ? this nxp semiconductors product has been qualified for use in automotive applications. unless otherwise agreed in writing, the product is not designed, authorized or warranted to be suitable for use in life support, life-critical or safety-critical systems or equipment, nor in applications where failure or malfunction of an nxp semiconductors product can reasonably be expected to result in personal injury, death or severe property or environmental damage. nxp semiconductors and its suppliers accept no liability for inclusion and/or use of nxp semiconducto rs products in such equipment or applications and therefore such inclusion and/or use is at the customer's own risk. applications ? applications that are described herein for any of these products are for illustrative purpos es only. nxp semiconductors makes no representation or warranty that such applications will be suitable for the specified use without further testing or modification. customers are responsible for the design and operation of their applications and products using nxp semiconductors products, and nxp semiconductors accepts no liability for any assistance with applications or customer product design. it is customer?s sole responsibility to determine whether the nxp semiconductors product is suitable and fit for the customer?s applications and products planned, as well as fo r the planned application and use of customer?s third party customer(s). customers should provide appropriate design and operating safeguards to minimize the risks associated with their applications and products. nxp semiconductors does not accept any liability related to any default, damage, costs or problem which is based on any weakness or default in the customer?s applications or products, or the application or use by customer?s third party customer(s). customer is responsible for doing all necessary testing for the customer?s applic ations and products using nxp semiconductors products in order to av oid a default of the applications and the products or of the application or use by customer?s third party customer(s). nxp does not accept any liability in this respect. limiting values ? stress above one or more limiting values (as defined in the absolute maximum ratings system of iec 60134) will cause permanent damage to the device. limiting values are stress ratings only and (proper) operation of the device at these or any other conditions above those given in the recommended operating conditions section (if present) or the characteristics sections of this document is not warranted. constant or repeated exposure to limiting values will permanently and irreversibly affect the quality and reliability of the device. terms and conditions of commercial sale ? nxp semiconductors products are sold subject to the gener al terms and conditions of commercial sale, as published at http://www.nxp.com/profile/terms , unless otherwise agreed in a valid written individual agreement. in case an individual agreement is concluded only the terms and conditions of the respective agreement shall apply. nxp semiconductors hereby expressly objects to applying the customer?s general terms and conditions with regard to the purchase of nxp semiconducto rs products by customer. document status [1] [2] product status [3] definition objective [short] data sheet development this document contains data from the objecti ve specification for product development. preliminary [short] data sheet qualification this document contains data from the preliminary specification. product [short] data sheet production this docu ment contains the product specification. pca8576f all information provided in this document is subject to legal disclaimers. ? nxp b.v. 2013. all rights reserved. product data sheet rev. 1 ? 22 november 2013 54 of 57 nxp semiconductors pca8576f automotive lcd driver for low multiplex rates no offer to sell or license ? nothing in this document may be interpreted or construed as an offer to sell products t hat is open for acceptance or the grant, conveyance or implication of any licens e under any copyrights, patents or other industrial or intellectual property rights. export control ? this document as well as the item(s) described herein may be subject to export control regu lations. export might require a prior authorization from competent authorities. translations ? a non-english (translated) version of a document is for reference only. the english version shall prevail in case of any discrepancy between the translated and english versions. bare die ? all die are tested on compliance with their related technical specifications as stated in this data sheet up to the point of wafer sawing and are handled in accordance with the nxp semiconductors storage and transportation conditions. if there are da ta sheet limits not guaranteed, these will be separately indicated in the data sheet. there are no post-packing tests performed on individual die or wafers. nxp semiconductors has no control of third party procedures in the sawing, handling, packing or assembly of the die. accordingly, nxp semiconductors assumes no liability for device functionality or performance of the die or systems after third party sawing, handling, packing or assembly of the die. it is the responsibility of the customer to test and qualify their application in which the die is used. all die sales are conditioned upon and subject to the customer entering into a written die sale agreement with nxp semiconductors through its legal department. 22.4 trademarks notice: all referenced brands, produc t names, service names and trademarks are the property of their respective owners. i 2 c-bus ? logo is a trademark of nxp b.v. 23. contact information for more information, please visit: http://www.nxp.com for sales office addresses, please send an email to: salesaddresses@nxp.com pca8576f all information provided in this document is subject to legal disclaimers. ? nxp b.v. 2013. all rights reserved. product data sheet rev. 1 ? 22 november 2013 55 of 57 nxp semiconductors pca8576f automotive lcd driver for low multiplex rates 24. tables table 1. ordering information . . . . . . . . . . . . . . . . . . . . .2 table 2. ordering options . . . . . . . . . . . . . . . . . . . . . . . . .2 table 3. marking codes . . . . . . . . . . . . . . . . . . . . . . . . . .2 table 4. pin description . . . . . . . . . . . . . . . . . . . . . . . . . .5 table 5. definition of pca8576f commands . . . . . . . . . .6 table 6. c bit description . . . . . . . . . . . . . . . . . . . . . . . . .6 table 7. mode-set command bit description . . . . . . . . . .6 table 8. load-data-pointer command bit description . . . .7 table 9. device-select command bit description . . . . . . .7 table 10. bank-select command bit description . . . . . . . .8 table 11. blink-select command bit description . . . . . . . . .8 table 12. selection of possible display configurations . . .10 table 13. biasing characteristics . . . . . . . . . . . . . . . . . . . 11 table 14. mapping of output pins and corresponding output signals with respect to the multiplex driving mode . . . . . . . . . . . . . . . . . . . . . . . . . .20 table 15. standard ram filling in 1:3 multiplex drive mode . . . . . . . . . . . . . . . . . . . . . . . . . . . .23 table 16. entire ram filling by rewriting in 1:3 multiplex drive mode . . . . . . . . . . . . . . . . . . . . . . . . . . . .23 table 17. blinking frequencies . . . . . . . . . . . . . . . . . . . . .27 table 18. i 2 c slave address byte . . . . . . . . . . . . . . . . . . .30 table 19. limiting values . . . . . . . . . . . . . . . . . . . . . . . . .34 table 20. static characteristics . . . . . . . . . . . . . . . . . . . .35 table 21. dynamic characteristics . . . . . . . . . . . . . . . . . .37 table 22. addressing cascaded pca8576f . . . . . . . . . .39 table 23. sync contact resistance . . . . . . . . . . . . . . . . .40 table 24. dimensions of PCA8576FUG . . . . . . . . . . . . . .43 table 25. bump location for PCA8576FUG . . . . . . . . . . .43 table 26. alignment marks . . . . . . . . . . . . . . . . . . . . . . . .44 table 27. description of tray details . . . . . . . . . . . . . . . . .46 table 28. selection of lcd segment drivers . . . . . . . . . .47 table 29. abbreviations . . . . . . . . . . . . . . . . . . . . . . . . . .50 table 30. revision history . . . . . . . . . . . . . . . . . . . . . . . .52 pca8576f all information provided in this document is subject to legal disclaimers. ? nxp b.v. 2013. all rights reserved. product data sheet rev. 1 ? 22 november 2013 56 of 57 nxp semiconductors pca8576f automotive lcd driver for low multiplex rates 25. figures fig 1. block diagram of pca8576f . . . . . . . . . . . . . . . . .3 fig 2. pinning diagram for PCA8576FUG (bare die) . . . .4 fig 3. format of command byte . . . . . . . . . . . . . . . . . . . .6 fig 4. example of displays suitable for pca8576f . . . . .9 fig 5. typical system configuration . . . . . . . . . . . . . . . .10 fig 6. electro-optical characteristic: relative transmission curve of the liquid . . . . . . . . . . . . . .13 fig 7. static drive mode waveforms . . . . . . . . . . . . . . . .14 fig 8. waveforms for the 1:2 multiplex drive mode with 1 2 bias . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15 fig 9. waveforms for the 1:2 multiplex drive mode with 1 3 bias . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16 fig 10. waveforms for the 1:3 multiplex drive mode with 1 3 bias . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17 fig 11. waveforms for the 1:4 multiplex drive mode with 1 3 bias . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18 fig 12. display ram bit map . . . . . . . . . . . . . . . . . . . . . .20 fig 13. relationship between lcd layout, drive mode, display ram filling order and display data transmitted over the i 2 c-bus . . . . . . . . . . . . . . . .21 fig 14. display ram filling order in static drive mode . . .22 fig 15. display ram filling order in 1:2 multiplex drive mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22 fig 16. display ram filling order in 1:4 multiplex drive mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24 fig 17. ram banks in static and multiplex driving mode 1:2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .25 fig 18. bank selection . . . . . . . . . . . . . . . . . . . . . . . . . . .26 fig 19. example of the bank-select command with multiplex drive mode 1:2 . . . . . . . . . . . . . . . . . . .26 fig 20. bit transfer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .28 fig 21. definition of start and stop conditions. . . . . .28 fig 22. system configuration . . . . . . . . . . . . . . . . . . . . . .29 fig 23. acknowledgement of the i 2 c-bus . . . . . . . . . . . .29 fig 24. i 2 c-bus protocol . . . . . . . . . . . . . . . . . . . . . . . . . .31 fig 25. device protection circuits . . . . . . . . . . . . . . . . . . .32 fig 26. typical i dd with respect to v dd . . . . . . . . . . . . . .36 fig 27. driver timing waveforms . . . . . . . . . . . . . . . . . . .38 fig 28. i 2 c-bus timing waveforms . . . . . . . . . . . . . . . . . .38 fig 29. cascaded pca8576f configuration . . . . . . . . . .40 fig 30. synchronization of the cascade for the various pca8576f drive modes. . . . . . . . . . . . . . . . . . . .41 fig 31. bare die outline PCA8576FUG (for dimensions see ta b l e 2 4 ) . . . . . . . . . . . . . . .42 fig 32. tray details . . . . . . . . . . . . . . . . . . . . . . . . . . . . .45 fig 33. tray alignment . . . . . . . . . . . . . . . . . . . . . . . . . . .46 nxp semiconductors pca8576f automotive lcd driver for low multiplex rates ? nxp b.v. 2013. all rights reserved. for more information, please visit: http://www.nxp.com for sales office addresses, please se nd an email to: salesaddresses@nxp.com date of release: 22 november 2013 document identifier: pca8576f please be aware that important notices concerning this document and the product(s) described herein, have been included in section ?legal information?. 26. contents 1 general description . . . . . . . . . . . . . . . . . . . . . . 1 2 features and benefits . . . . . . . . . . . . . . . . . . . . 1 3 ordering information . . . . . . . . . . . . . . . . . . . . . 2 3.1 ordering options . . . . . . . . . . . . . . . . . . . . . . . . 2 4 marking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 5 block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . 3 6 pinning information . . . . . . . . . . . . . . . . . . . . . . 4 6.1 pinning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 6.2 pin description . . . . . . . . . . . . . . . . . . . . . . . . . 5 7 functional description . . . . . . . . . . . . . . . . . . . 6 7.1 commands of pca8576f. . . . . . . . . . . . . . . . . 6 7.1.1 command: mode-set . . . . . . . . . . . . . . . . . . . . 6 7.1.2 command: load-data-pointer . . . . . . . . . . . . . . 7 7.1.3 command: device-select . . . . . . . . . . . . . . . . . 7 7.1.4 command: bank-select. . . . . . . . . . . . . . . . . . . 8 7.1.5 command: blink-select . . . . . . . . . . . . . . . . . . . 8 7.2 initialization . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 7.3 possible display configurations . . . . . . . . . . . . 9 7.4 lcd voltage . . . . . . . . . . . . . . . . . . . . . . . . . . 10 7.4.1 lcd bias generator . . . . . . . . . . . . . . . . . . . . 10 7.4.2 lcd voltage selector . . . . . . . . . . . . . . . . . . . 11 7.4.2.1 electro-optical performance . . . . . . . . . . . . . . 12 7.4.3 lcd drive mode waveforms . . . . . . . . . . . . . . 14 7.4.3.1 static drive mode . . . . . . . . . . . . . . . . . . . . . . 14 7.4.3.2 1:2 multiplex drive mode. . . . . . . . . . . . . . . . . 15 7.4.3.3 1:3 multiplex drive mode. . . . . . . . . . . . . . . . . 17 7.4.3.4 1:4 multiplex drive mode. . . . . . . . . . . . . . . . . 18 7.5 oscillator. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 7.5.1 internal clock . . . . . . . . . . . . . . . . . . . . . . . . . 19 7.5.2 external clock . . . . . . . . . . . . . . . . . . . . . . . . . 19 7.5.3 timing and frame frequency . . . . . . . . . . . . . . 19 7.6 segment outputs. . . . . . . . . . . . . . . . . . . . . . . 19 7.7 backplane outputs . . . . . . . . . . . . . . . . . . . . . 19 7.8 display register . . . . . . . . . . . . . . . . . . . . . . . . 20 7.9 display ram . . . . . . . . . . . . . . . . . . . . . . . . . . 20 7.9.1 ram filling in static drive mode. . . . . . . . . . . . 22 7.9.2 ram filling in 1:2 multiplex drive mode. . . . . . 22 7.9.3 ram filling in 1:3 multiplex drive mode. . . . . . 23 7.9.4 ram filling in 1:4 multiplex drive mode. . . . . . 23 7.9.5 data pointer . . . . . . . . . . . . . . . . . . . . . . . . . . 24 7.9.6 subaddress counter . . . . . . . . . . . . . . . . . . . . 24 7.9.7 writing over the ram address boundary . . . . 25 7.9.8 bank selection . . . . . . . . . . . . . . . . . . . . . . . . 25 7.9.8.1 ram bank switching . . . . . . . . . . . . . . . . . . . . 25 7.9.8.2 output bank selector . . . . . . . . . . . . . . . . . . . 26 7.9.8.3 input bank selector . . . . . . . . . . . . . . . . . . . . . 27 7.10 blinking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27 7.11 display controller . . . . . . . . . . . . . . . . . . . . . . 27 8 characteristics of the i 2 c-bus . . . . . . . . . . . . 28 8.1 bit transfer . . . . . . . . . . . . . . . . . . . . . . . . . . . 28 8.1.1 start and stop conditions. . . . . . . . . . . . . 28 8.2 system configuration . . . . . . . . . . . . . . . . . . . 28 8.3 acknowledge . . . . . . . . . . . . . . . . . . . . . . . . . 29 8.4 i 2 c-bus controller . . . . . . . . . . . . . . . . . . . . . . 30 8.5 input filters . . . . . . . . . . . . . . . . . . . . . . . . . . . 30 8.6 i 2 c-bus protocol . . . . . . . . . . . . . . . . . . . . . . . 30 9 internal circuitry . . . . . . . . . . . . . . . . . . . . . . . 32 10 safety notes. . . . . . . . . . . . . . . . . . . . . . . . . . . 33 11 limiting values . . . . . . . . . . . . . . . . . . . . . . . . 34 12 static characteristics . . . . . . . . . . . . . . . . . . . 35 13 dynamic characteristics. . . . . . . . . . . . . . . . . 37 14 application information . . . . . . . . . . . . . . . . . 39 14.1 cascaded operation. . . . . . . . . . . . . . . . . . . . 39 15 bare die outline . . . . . . . . . . . . . . . . . . . . . . . . 42 16 handling information . . . . . . . . . . . . . . . . . . . 45 17 packing information . . . . . . . . . . . . . . . . . . . . 45 17.1 tray information . . . . . . . . . . . . . . . . . . . . . . . 45 18 appendix . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47 18.1 lcd segment driver selection . . . . . . . . . . . . 47 19 abbreviations . . . . . . . . . . . . . . . . . . . . . . . . . 50 20 references. . . . . . . . . . . . . . . . . . . . . . . . . . . . 51 21 revision history . . . . . . . . . . . . . . . . . . . . . . . 52 22 legal information . . . . . . . . . . . . . . . . . . . . . . 53 22.1 data sheet status . . . . . . . . . . . . . . . . . . . . . . 53 22.2 definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . 53 22.3 disclaimers . . . . . . . . . . . . . . . . . . . . . . . . . . 53 22.4 trademarks . . . . . . . . . . . . . . . . . . . . . . . . . . 54 23 contact information . . . . . . . . . . . . . . . . . . . . 54 24 tables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55 25 figures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56 26 contents. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57 |
Price & Availability of PCA8576FUG
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