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FD1000A 3/4com lcd driver 1 / 20 FD1000A 3-com 52-seg, 4-com 51-seg lcd display driver january. 200 8 ver. 1.0 contents 1. general description & f eatures -------------------------------- page 2 2. pin assignment & bl ock diagram -------------------------------- page 3 3. pin descriptions -------------------------------- page 4 4. serial data format and timing -------------------------------- page 4 5. control data functions -------------------------------- page 5 6. display data to segment output pin correspondence -------- page 7 7. lcd driving waveform -------------------------------- page 9 8. application circuit -------------------------------- page 11 9. inh\ pin and display c ontrol -------------------------------- page 17 10. absolute maximum ratings -------------------------------- page 18 11. d.c electrical characteristi cs -------------------------------- page 18 12. a.c electrical characteristi cs -------------------------------- page 19 13. package dimensions -------------------------------- page 20
FD1000A 3/4com lcd driver 2 / 20 3 com, 4 com lcd display driver general description the FD1000A is a 1/3 or 1/4 duty lcd driver for segment type lcd panel. it can be used for frequency display in microprocessor-controlled receiver and in other display application. the FD1000A chooses numbers of common and general-purpose output ports by instructions. therefor, it drives 156-segment at 1/3 duty in use of 3 commons or 204-segment at 1/4 duty in use of 4 commons. also it provides 12 general-purpose output ports. features z programmable duty ratio 1/3 duty : up to 156 segment outputs 1/4 duty : up to 204 segment outputs z programmable lcd bias ratio : 1/2 bias or 1/3 bias z programmable general-purpose output port function (only 1/4 duty mode) z internal lcd driving voltage generator circuit z normal & diminish lcd dividing resistors selection (only 1/4 duty mode) z power saving mode and all segment off function z rc oscillation circuit z serial interface ( si, sck, ce and inh/ ) for 3v or 5v z power supply voltage : 2.7v ~ 5.5v z package type 64-lqfp-1414, 64-lqfp-1010
FD1000A 3/4com lcd driver 3 / 20 pin assignment block diagram
FD1000A 3/4com lcd driver 4 / 20 pin descriptions pin no. pin name i/o pin description 1 ~ 12 seg1/ p1 ~ seg12/ p12 o lcd segment output pins / general- purpose output pins(o nly 1/4duty mode) select segment output pins or general- purpose output pins by the instruction. 13 ~ 51 seg13~seg51 o lcd segment output pins. 52 seg52/ com0 o lcd segment output pin or lcd common output pin. seg52 in 1/3 duty use, com0 in 1/4 duty use. 53 ~ 55 com1 ~ com3 o lcd common output pins. 57 inh\ i display off control input pin inh\ = vss, display forced off inh\ = vdd, display on 58, 59 vlc1, vlc2 i/o lcd power supply 61 osc i/o oscillator output pin. 62 ce i chip enable input pin 63 sck i shift clock input pin 64 si i serial data input pin 56 vdd - power supply 60 vss - ground serial data format and timing z 1/3 duty , sck is stopped at low level z 1/3 duty , sck is stopped at high level note : x = don?t care
FD1000A 3/4com lcd driver 5 / 20 z 1/4 duty , sck is stopped at low level z 1/4 duty , sck is stopped at high level control data functions z display data : d1 to d156 (1/3 duty), d1 to d204 (1/4 duty) when the bit of a display data is ?1?, the lcd display is turn on when the bit value is ?0?, the display is turn off. z duty selection : duty select address is which sets lcd driving duty ratio 1/3 or 1/4 duty. address = 41 hex, 1/3 duty ( 3-common 52-segment lcd driver ) address = 80 hex, 1/4 duty ( 4-common 51-segment lcd driver ) z dr : 1/2 or 1/3 bias selection bit dr data = ?0? , 1/2 bias drive = ?1? , 1/3 bias drive z sc : segment on/off control bit sc data = ?0? , display on = ?1? , display off z bu : power saving control bit bu data = ?0? , normal mode = ?1? , power-saving mode. in this mode the oscillator is stopped and the segment pins output vss levels. z cu : lcd dividing resistors selection bit (only 1/4 duty mode) cu data = ?0? , normal mode (rlcd=r) = ?1? , low current mode (rlcd=2*r)
FD1000A 3/4com lcd driver 6 / 20 z pc0 to pc1 : segment /general-purpose output pin selection bits (only 1/4 duty mode) note : segn(n=1~12) : segment output pin function, pn (n=1~12) : general-purpose output pin function when selected, following data are assigned. for example, when the general-purpose output pin function is selected for segn/pn output pins, that output pin will output a high level data dn is ?1?, and will output a low level when dn is ?0?.
FD1000A 3/4com lcd driver 7 / 20 display data to segment output pin correspondence (1) z 1/3 duty note : when display data is ?1?, the segment on. when display data is ?0?, the segment off
FD1000A 3/4com lcd driver 8 / 20 display data to segment output pin correspondence (2) z 1/4 duty note : when display data is ?1?, the segment on. when display data is ?0?, the segment off
FD1000A 3/4com lcd driver 9 / 20 lcd driving waveform (1) z 1/3 duty, 1/3 bias and 1/2 bias note : frame frequency fr = fosc / 384 hz
FD1000A 3/4com lcd driver 10 / 20 lcd driving waveform (2) z 1/4 duty, 1/3 bias and 1/2 bias note : frame frequency fr = fosc / 512 hz
FD1000A 3/4com lcd driver 11 / 20 application circuit (1)
FD1000A 3/4com lcd driver 12 / 20 application circuit (2)
FD1000A 3/4com lcd driver 13 / 20 application circuit (3)
FD1000A 3/4com lcd driver 14 / 20 application circuit (4)
FD1000A 3/4com lcd driver 15 / 20 application circuit (5)
FD1000A 3/4com lcd driver 16 / 20 application circuit (6)
FD1000A 3/4com lcd driver 17 / 20 inh pin and display control since the FD1000A internal data (the display data d1 to d156/d204 and the control data) is undefined when power is first supplied, the display is off (seg1 to seg52 and com1 to com3=low) by setting the inh\ pin low at the same time as power is supplied. while the inh\ pin is held low, the micro-controller should send the serial data and set inh\ pin high after the transfer completes. figure 1
FD1000A 3/4com lcd driver 18 / 20 absolute maximum ratings (t a = 25 c) parameter symbol conditions ratings unit supply voltage v dd v dd ? 0.3 to +6.0 v input voltage v i ce, sck,si ,osc and inh\ ? 0.3 to v dd + 0.3 v output voltage v o seg1~seg52, com1~com3 ? 0.3 to v dd + 0.3 v i out1 seg1 to seg52 0.3 i out2 com0 to com4 3 output current i out3 p1 to p12 10 ma operating temperature t a ? 40 to + 85 storage temperature t stg ? 55 to + 125 c d.c electrical characteristics ( t a = - 40 c to + 85 c, vss = 0 v, vdd = 2.7 v to 5.5 v) parameter symbol conditions min typ max unit operating voltage v dd v dd 2.7 - 5.5 v input high leakage i ih ce, sck,si and inh\ : vi = 5v - - 5 ua input low leakage i il ce, sck,si and inh\ : vi = 0v -5 - - ua input high voltage v ih ce, sck,si and inh\ , v dd = 5v 2.7 - v dd v input low voltage v il ce, sck,si and inh\ , v dd = 5v - - 0.5 v v lc1 vlc1 - 2/3 v dd - input voltage v lc2 vlc2 - 1/3 v dd - v v oh1 seg1 ~ seg52 : io = -20ua v dd ?1.0 - - v oh2 com0 to com3 : io = -100ua v dd ?1.0 - - output high voltage v oh3 p1 to p12 : io = -1.5ma , v dd = 5v v dd ?1.0 - - v v ol1 seg1 ~ seg52 : io = 20ua - - 1.0 v ol2 com0 to com3 : io = 100ua - - 1.0 output low voltage v ol3 p1 to p12 : io = 3ma , v dd = 5v - - 1.0 v i dd1 stop mode , v dd = 5v t a = 25 c 5 ua i dd2 f=38khz, 1/3 duty, 1/2bias, v dd = 5v - 300 600 ua i dd3 f=38khz, 1/3 duty, 1/3bias, v dd = 5v - 250 500 ua i dd4 f=51khz, 1/4 duty, 1/2bias, v dd = 5v output open, control data cu = 0 - 300 600 ua i dd5 f=51khz, 1/4 duty, 1/2bias, v dd = 5v output open, control data cu = 1 - 250 500 ua i dd6 f=51khz, 1/4 duty, 1/3bias, v dd = 5v output open, control data cu = 0 - 250 500 ua supply current i dd7 f=51khz, 1/4 duty, 1/3bias, v dd = 5v output open, control data cu = 1 - 200 400 ua
FD1000A 3/4com lcd driver 19 / 20 a.c electrical characteristics (t a = - 40 c to + 85 c, v dd = 4.0 v to 5.5 v) parameter symbol conditions min typ max unit fosc1 vdd=5v, 1/3 duty:rosc=47k, cosc=1000pf 28 38 48 khz oscillator frequency fosc2 vdd=5v, 1/4 duty:rosc=47k, cosc=680pf 41 51 61 khz data setup time tds figure2 : si, sck 160 - - ns data hold time tdh figure2 : si, sck 160 - - ns high level clock pulse width twh figure2 : sck 160 - - ns low level clock pulse width twl figure2 : sck 160 - - ns ce setup time tcs figure2 : sck, ce 160 - - ns ce hold time tch figure2 : sck, ce 160 - - ns ce wait time tcw figure2 : sck, ce 160 - - ns rise time tr v il to v ih : si, sck, ce, inh - 160 - ns fall time tf v ih to v il : si, sck, ce, inh - 160 - ns inh\ switching time tc figure1 : inh\, ce 10 - - us z when sck is stopped at the low level z when sck is stopped at the high level figure 2
FD1000A 3/4com lcd driver 20 / 20 package dimensions unit : mm

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