issue 8.2012 lcd-modul 4x20 - 6.45mm incl. controller ssd1803 preliminary features * high-contrast lcd-supertwist display * blue backgr oud with white characters * black&white fstn * extreme compact with 75mm width * built-in controller ssd1803 (very similar to hd44780) * 4- and 8-bit interface for databus * serial spi-interface (sid, sod, sclk, cs) * power supply + 3.3 / typ. 4ma (w./o. b ./l.) * opera ting temp. range -20..+70c * automatic temperature compensation built-in * led-ba cklight white, max. 75ma@+25c * 16 icons (battery, arrows etc.) at the top edge * no monting is required: just solder into pcb * single row socket available: ea b254-12 (1 pc.) * 128x64 graphic with same dimension and same pinout: ea dip128 ordering information lcd-module 4x20 - 6.45mm with led-b./l. blue ea dip203b-6nlw fstn black on white ea dip203j-6nlw socket 4.5mm height, 12 positions (1 pc.) ea b254-12 ea dip203j-6nlw: dimension 75 x 46 mm no mounting required ea dip203b-6nlw
printing and typographical errors reserved. electronic assembly reserves the right to change specifications without prior notice. page 2 ea dip203-6 preliminary pinout backlight using the led backlight requires an current source or external current-limiting resistor. forward voltage for white led backlight is 3.0~3.6v. please take care of derating for t a >+25c attention: do never drive backlight directly to 5v; this may damage backlight immediately ! the blue display cannot be read without backlight. for direct sunlight we suggest to use the j-type. spi mode (solder link "spi" closed) pin symbo function pin symbo funktion 1 vss power supply 0v (gnd) 13 not connected 2 vdd power supply +5v 14 vss power supply 0v (gnd) 3 vci contrast adjustment 15 sod data out 4 res l: reset 16 not connected 5 cs chip select 17 not connected 6 sid data in 18 not connected 7 sclk shift clock 19 not connected 8 not connected 20 not connected 9 not connected 21 not connected 10 not connected 22 not connected 11 not connected 23 a led-b/l + (ext. resistor requ) 12 not connected 24 c led-b/l - 4-/8-bit mode (factory set) pin symbo function pin symbo function 1 vss power supply 0v (gnd) 13 not connected 2 vdd power supply +5v 14 vss power supply 0v (gnd) 3 vci contrast adjustment 15 d0 display data, lsb 4 res l: reset 16 d1 display data d1 5 rs h=data; l=command 17 d2 display data d2 6 r/w h=read, l=write 18 d3 display data d3 7 e enable 19 d4 (d0) display data d4 8 not connected 20 d5 (d1) display data d5 9 not connected 21 d6 (d2) display data d6 10 not connected 22 d7 (d3) display data, msb 11 not connected 23 a led-b/l + (ext. resistor requ) 12 not connected 24 c led-b/l - instruction code description ex e c ute time (270khz) re bit rs r/w db 7 db 6 db 5 db 4 db 3 db 2 db 1 db 0 clear display * 0 0 0 00 0 0 00 1 clears all display and returns the cursor to the home position (address 0). 1.53ms cursor at home 0 0 0 0 0 0 0 0 0 1 * returns the cursor to the home position (address 0). also returns the display being shifted to the original position. dd ram contents remain unchanged. 1.53ms power down mode 1 0 0 0 0 0 0 0 0 1 pd set pow er dow n mode bit. pd=0: pow erdow n mode disable pd=1: pow erdow n mode enable 39s entr y mode se t 0 0 0 0 0 0 0 0 1 i/d s cursor moving direction (i/d=0: dec; i/d=1: inc) shift enable bit (s=0: disable; s=1: enable shift) 39s 0 0 0 0 0 0 0 0 1 1 bid segment bidirectional function (bid=0: seg1->seg60; bid=1: seg60->seg1) 39s display on/off control 0 0 0 0 00 0 1 dc b d=0: display off; d=1: display on c=0: cursor off; c=1: cursor on b=0: blink of f ; b=1: blink on 39s extended function set 1 0 0 0 00 0 1 fw bw nw fw=0: 5-dot font w idth; fw=1: 6-dot font w idth bw=0: normal cursor; bw=1: inverting cursor nw=0: 1- or 2-line (see n); nw=1: 4-line display 39s cursor / display shift 0 0 0 0 00 1 s/c r/l * * moves the cursor or shifts the display s/c=0: cursor shift; s/c=1: display shift r/l=0: shift to left; r/l=1: shift to right 39s scroll enable 1 0 0 0 0 0 1 h4 h3 h2 h1 determine the line for horizontal scroll 39s function set 0 0 0 0 0 1 dl n re dh rev sets interface data length (dl=0:4-bit; dl=1:8-bit) number of display lines (n=0: 1-line; n=1: 2-line) extension register (re= 0/1) scroll/shift (dh=0: dot scroll; dh=1: display shift) reverse bit (rev=0:normal; rev=1:inverse display) 39s 1 0 0 0 0 1 dl n re be lp cg-/seg-ram blink (be=0: disable; be=1: enable) lp=0: normal mode; lp=1: low pow er mode 39s cg ram address set 0 0 0 0 1 ac sets the cg ram address. cg ram data is sent and received after this setting. 39s seg ram address set 1 0 0 0 1 * * ac sets the seg ram address. seg ram data is sent and received after this setting. 39s dd ram address set 0 0 0 1 ac sets the dd ram address. dd ram data is sent and received after this setting. 39s set scroll quantity 1 0 0 1 * sq sets the quantity of horizontal dot scroll (dh=0) 39s busy flag / address read * 0 1 bf ac reads busy flag (bf) indicating internal operation is being performed and reads address counter contents. - write data * 1 0 write data writes data into internal ram (dd ram / cg ram / segram) 43s read data * 1 1 read data reads data from internal ram (dd ram / cg ram / segram) 43s table of command (ssd1803) serial mode spi factory set for interface is parallel with 4 bit or 8 bit data bus. alternative module can be programmes with serial data stream. for that solder link spi has to be closed. harware specification for serial operation mode is written down in user manual for ssd1803: http://www.lcd-module.de/fileadmin/ eng/pdf/zubehoer/ssd1803_0.20.pdf . software for initialisation and programming keeps the same.
page 3 printing and typographical errors reserved. electronic assembly reserves the right to change specifications without prior notice. ea dip203-6 preliminary 3.3v operation contrast adjustment contrast will be set by pin 3 (vci). module ea dip203 comes with built-in temperature compensation for -20..+70c as a standard; any contrast adjustment while operation is no longer required. adress: 1st. line $00..$13 2nd. lin e $20..$33 3rd. line $40..$53 4th. line $60..$73 character set beside there's a copy of built.in character set. in addition to that up to 8 individual character can be created. example of initialisation, 8 bit mode command re bit rs r/w db7 db6 db5 db4 db3 db2 db1 db0 hex note function set 0 0 0 0 0 1 1 0 0 0 0 $30 8 bit data length, extension bit re=0 entry mode set 0 0 0 0 0 0 0 0 1 1 0 $06 cursor auto-increment function set 0 0 0 0 0 1 1 0 1 1 0 $36 8 bit data length, re =1, blink enable be =1 ext. function set 1 0 0 0 0 0 0 1 0 0 1 $09 4 line mode set segram adr 10 0 0 1 000 0 0 0 $40 icon ram adress: $00 16 x write data 1 1 0 0 0 0 0 0 0 0 0 $00 to clear all icons: write 16x $00 function set 1 0 0 0 0 1 1 0 0 0 0 $30 8 bit data length, bit re =0 display on/off 0 0 0 0 0 0 0 1 1 1 1 $0f display on, cursor on, cursor blink clear display 0 0 0 0 0 0 0 0 0 0 1 $01 clear display, place cursor to 1st. col. /1st. row please make shure that software will check busy-flag before writing any command ! 1k vci vdd (3,3v) vdd (3,3v) crea ting y our own characters all these character display modules got the feature to create 8 own characters (ascii codes 0..7) in addition to the 240 rom fixed codes. 1.) the command "cg ram address set" defines the ascii code (bit 3,4,5) and the dot line (bit 0,1,2) of the new character. example demonstrates creating ascii code $00. 2.) doing 8 times the write command "data write" defines line by line the new character. 8th. byte stands for the cursor line. 3.) the new defined character can be used as a "normal" ascii code (0..7); use with "dd ram address set" and "data write". set cg ram address data adresse hex bit hex 7 6 5 4 3 2 1 0 01 000 000 $40 xxx 0 0 1 0 0 $04 001 $41 0 0 1 0 0 $04 010 $42 0 0 1 0 0 $04 011 $43 0 0 1 0 0 $04 100 $44 1 0 1 0 1 $15 101 $45 0 1 1 1 0 $0e 110 $46 0 0 1 0 0 $04 111 $47 0 0 0 0 0 $00
ea dip203-6 technische ?nderung vorbehalten. wir bernehmen keine haftung fr druckfehler und applikationsbeispiele. electronic assembly gmbh zeppelinstra?e 19 d-82205 gilching germany fon: +49 (0)8105-77 80 90 fax: +49 (0)8105-77 80 99 e-mail: info@lcd-module.de web: www.lcd-module.com preliminary dimensions driving the symbols after power-on symbols will be set accidental. to switch off them all please refer to the example of initializing on page 3. to display an individual symbol have a look at the program example at the right. each symbol can be displayed in normal (solid) and blinking style. all dimensions are in mm icon - symbols segram address $00 $01 $02 $03 $04 $05 $06 $07 $08 $09 $0a $0b $0c $0d $0e $0f $0f $0f $0f $0f data solid $10 $10 $10 $10 $10 $10 $10 $10 $10 $10 $10 $10 $10 $10 $10 $1f $1e $1c $18 $10 data blink (be=1!) $50 $50 $50 $50 $50 $50 $50 $50 $50 $50 $50 $50 $50 $50 $50 $50 example program to display an icon (8 bit mode interface) command re bit rs r/w db7 db6 db5 db4 db3 db2 db1 db0 hex note busy-flag / address read 0 0 1 bf ac perhaps store current ddram adress: read ac and save as lastadr=ac function set 0 0 0 0 0 1 1 0 1 1 0 $36 set to 8 bit data length, re=1, blink enable be=1 set segram adr 1 0 0 0 1 0 0 0 0 1 0 $42 set icon-ram adress to $02 (letter symbol) write data 1 1 0 0 0 0 1 0 0 0 0 $10 write $10 to display symbol function set 1 0 0 0 0 1 1 0 0 0 0 $30 set to 8 bit data length, extension bit re=0 set ddram adr 0 0 0 1 lastadr $80 restore ddram adress note: lc-displays are generally not suited to wave or reflow soldering. temperatures of over 90c can cause lasting demage. driving with 5v-systems the supply voltage of the display is necessarily 3.3v. if a 5v-system is used, the level have to be adapted. for example you can use a biderectional levelshifter (e.g. ps 74lvc4245a), like shown in the opposite figure. compa tibility with ea dip204-6 the displays of ea dip203 and ea dip204 series are electrically and mechanically identical to each other running with 3.3v supply mode. merely a 5v supply is not acceptable with the new ea dip203 series.
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