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pt6522 lcd display driver tel: 886-66296288 ? fax: 886-29174598 ? http://www.princeton.com.tw ? 2f, 233-1, baociao road, si ndian, taipei 23145, taiwan description the pt6522 is a general purpose lcd display driver which can be used for frequency display applications in microprocessor-controlled radio receivers and other display applications. applications ? electronic dictionary/calculator ? p.o.s. terminal ? call id device ? pager ? mini component system ? electronic equipment with lcd display features ? 53 segment outputs ? two drive types are possible: static (1/1) duty (53 segments) and 1/2 duty (104 segments) ? inh pin for turning off all display output ? rc oscillation circuit ? power supply voltage: 3.0 to 6.5v ? available in 64-pin qfp or lqfp package block diagram
pt6522 v1.6 2 august 2010 application circuit 1 note: 39k ? r 10k ? application circuit 2 note: when power (v dd ) is first applied, the internal displa y data is undefined and a meaningless pattern will result if the display is turned on in this state. to avoid the display should be turned off by setting /inh low and tu rned on only after display data has been sent from the control ler.
pt6522 v1.6 3 august 2010 ordering information valid part number package type top code PT6522-Q 64 pins, qfp PT6522-Q pt6522lq 64 pins, lqfp pt6522lq pin configuration pin description pin name description pin no. sg1 to sg53 segment output pins 1~23, 25~53 osc oscillator connection 55 vss, vdd power supply 59, 56 /inh display off control input /inh=low (vss)=display off (sg1 to sg53, com1, com2=low) /inh=high (vdd)=display on note that serial data transfers are allowed when display output is turned off using this pin. 57 vlcd lcd bias voltage setting 58 ce, clk, di serial data transfer inputs 60, 61, 62 com1, com2 common output pins (for static (1/1) driv e only com1 is used, com2 must be left open) 64, 63 nc no connection 24
pt6522 v1.6 4 august 2010 input/ouput configurations the schematic diagrams of the i nput and output circuits of the logic section are shown below: input pin: clk, ce, di, /inh output pin: com1 to com2, sg1 to sg53
pt6522 v1.6 5 august 2010 function description data transfer format 1. static (1/1) duty 2. 1/2 duty (if there are no more that 52 display segments, only 64 bits need to be tr ansferred. the transfer format is the same as the static duty case. it is not possible to alter the d54 to d106 data without s pecifying the d1 to d53 data.) address: a2 h dp: drive type selection bit dp=0: 1/1 duty dp=1: 1/2 duty d1 to d106: display data dn (for n=1 to 106)=0: segment off dn (for n=1 to 106)=1: segment on x: don't care data transfer examples 1. static duty 2. 1/2 duty with 52 or fewer segments 3. 1/2 duty with more than 52 segments note: the following transfer format is not allowed in 1/2 duty with 52 or fewer segments.
pt6522 v1.6 6 august 2010 serial data 1. static duty (64 bits) 2. 1/2 duty (128 bits)
pt6522 v1.6 7 august 2010 output waveforms 1. static duty 2. 1/2 duty
pt6522 v1.6 8 august 2010 absolute maximum ratings (unless otherwise specified, ta=25 , v ss =0v) parameter symbol conditions ratings unit maximum supply voltage vddmax vdd -0.3 to +7.0 v vlcd vlcd -0.3 to vdd +0.3 v input voltage vin1 ce, clk, di, /inh -0.3 to +7.0 v vin2 osc: output off -0.3 to vdd +0.3 v output voltage vout osc: output off -0.3 to vdd +0.3 v output current iout1 sg1 to sg53 100 a iout2 com1, com2 1.0 ma allowable power dissipation pd max ta=85 100 mw operating temperature topr - -40 to +85 storage temperature tstg - -65 to +150 electrical characteristics (unless otherwise specified, ta=25 , v ss =0v) parameter symbol conditions min. typ. max. unit high-level input current iih ce, clk, di, /inh: vdd - - 5 a low-level input current iil ce, clk, di, /inh: vi=0v -5 - - a high-level output voltage voh1 sg1 to sg53: io=-10 a vlcd - 1.0 - - v low-level output voltage vol1 sg1 to sg53: io=10 a - - 1.0 v high-level output voltage voh2 com1, com2: io=-100 a vlcd - 0.6 - - v low-level output voltage vol2 com1, com2: io=100 a - - 0.6 v mid-level voltage vmid1 com1, com2: vlcd=6.5v, io=100 a 2.65 3.25 3.85 v vmid2 com1, com2: vlcd=3.0v, io=100 a 0.9 1.5 2.1 v oscillator frequency f osc osc: r=51k ? , c=680pf 40 50 60 khz hysteresis width vh ce, cl k, di: vdd=5v 0.3 - - v supply current idd vdd=5v, output=open - - 0.5 ma ilcd vlcd - - 2 ma allowable operating ranges (unless otherwise specified, ta=25 , v ss =0v) parameter symbol conditions min. typ. max. unit supply voltage vdd vdd 3.0 - 6.5 v vlcd vlcd 3.0 - vdd v high-level input voltage vih1 /inh 0.7 vdd - 6.5 v low-level input voltage vil1 /inh 0 - 0.3 vdd v high-level input voltage vih2 ce , clk, di 0.8 vdd - 6.5 v low-level input voltage vil2 ce, clk, di 0 - 0.2 vdd v recommended external resistance rosc osc - 51 - k ? recommended external capacitance cosc osc - 680 - pf guaranteed oscillation range f osc osc 25 50 100 khz clock low-level pulse width (see figure) tol clk 250 - - ns clock high-level pulse width (see figure) toh clk 250 - - ns data setup time (see figure) tds clk, di 250 - - ns data hold time (see figure) tdh clk, di 250 - - ns ce wait time (see figure) tcp ce, clk 250 - - ns ce setup time (see figure) tcs ce, clk 250 - - ns ce hold time (see figure) tch ce, clk 250 - - ns
pt6522 v1.6 9 august 2010 1. clk is terminated at ?low? level 2. clk is terminated at ?high? level figure
pt6522 v1.6 10 august 2010 transfer (external input) data/output pin correspondence note: only com1 is used in static (1/1 duty) drive. dp 0 1 com1 com2 output pin 1/1 duty 1/2 duty sg1 d1 d1 ? d2 ? sg2 d2 d3 ? d4 ? sg3 d3 d5 ? d6 ? ? ? ? ? ? sg26 d26 d51 ? d52 ? sg27 d27 d54 ? d55 ? sg28 d28 d56 ? d57 ? ? ? ? ? ? sg43 d43 d86 ? d87 ? sg44 d44 d88 ? d89 ? sg45 d45 d90 ? d91 ? sg46 d46 d92 ? d93 ? sg47 d47 d94 ? d95 ? sg48 d48 d96 ? d97 ? sg49 d49 d98 ? d99 ? sg50 d50 d100 ? d101 ? sg51 d51 d102 ? d103 ? sg52 d52 d104 ? d105 ? sg53 d53 always on ? always on ?
pt6522 v1.6 11 august 2010 package information 64 pins, qfp package (body size: 14mm x 14mm, pitch: 0.80mm) symbol min. nom. max. a - - 3.15 a1 0.00 - 0.25 a2 1.90 - 2.90 b 0.29 0.35 0.41 c 0.11 - 0.23 d 17.20 bsc d1 14.00 bsc e 17.20 bsc e1 14.00 bsc e 0.80 bsc l 0.65 - 1.05 l1 1.60 ref 0 - 8 notes: 1. refer to jedec mc-022be 2. all dimensions are in millimeter.
pt6522 v1.6 12 august 2010 64 pins, lqfp package (body size: 10mm x 10mm, thk body: 1.40mm) symbol min. nom. max. a - - 1.60 a1 0.05 - 0.15 a2 1.35 1.40 1.45 b 0.17 0.22 0.27 c 0.09 - 0.20 d 12.00 bsc d1 10.00 bsc e 12.00 bsc e1 10.00 bsc e 0.50 bsc l 0.45 0.60 0.75 l1 1.00 ref 0 3.5 7 notes: 1. all dimensions are in millimeter. 2. refer to jedec ms-026bcb
pt6522 v1.6 13 august 2010 important notice princeton technology corporation (ptc ) reserves the right to make co rrections, modifications, enhancements, improvements, and other changes to its products and to discontinue any product without notice at any time. ptc cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a ptc product. no circuit patent licenses are implied. princeton technology corp. 2f, 233-1, baociao road, sindian, taipei 23145, taiwan tel: 886-2-66296288 fax: 886-2-29174598 http://www.princeton.com.tw

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