the tolerance unless classified 0.3mm lcd option: stn, tn, fstn backlight option: led,el backlight feature, other specs not available on catalog is under request. outline dimension & block diagram pg 12864-i pg 12864-i mechanical specification overall size view area dot size dot pitch 54.0 x 50.0 43.5 x 29.0 0.28 x 0.35 0.32 x 0.39 module w /o b/l el b/l led b/l h2 / h1 3.3 / 6.8 3.3 / 6.8 vdd-0.3 v v v 19.0 7.0 item supply for logic voltage lcd driving supply voltage input voltage vdd-vss vdd-vee vin 25 o c 25 o c 25 o c -0.3 -0.3 -0.3 symbol condition min. max. units absolute maximum rating item lcd operation voltage lcm current consumption (no b/l) backlight current consumption symbol min. condition vop idd led/edge vb/l=4.2v led/array top -20 o c 0 o c 25 o c 50 o c 70 o c vb/l=4.2v n w vdd=5v electrical characteristics typical n w max. units v v v v v v ma ma ma n w 8.5 pin assignment pin no. symbol function 1 2 3 4 5 6 7-14 15 16 17 18 19 20 vss vdd vo d /i vee e db0-db7 rs t bl+ bl- power supply(gnd) power supply(+) contrast adjust command / data select chip select driver 1 negative voltage output chip enable singnal data read / write data bus line reset enable (on/off) for el b/l 2.5 / cs1 chip select driver 2 cs2 r/w no connection power supply voltage vdd-vss 25 o c v 5 4.5 5.5 db0~db7 cs1 vss lcd segment driver 1 lcd p anel com 64 e vdd v o seg 64 d /i dc t o dc circuit backlight cs2 0.28 0.04 0.35 0.04 bl+ bl- r/w rst v ee lcd segment driver 2 4 4 4 common driver bias circuit seg 64 det ail:c det ail:a 0.3 1.8 2.7 3.0 1.2 det ail:b 4.0 90 o 1.8 4.0 4.0 1.9 0.1 60 o 90 o 0.1 1.8 0.1 0.7 0.1 2.0 6.8 1.0 3.3 2.5 1 54.0 0.5 49.0 b 128 x 64 dots c 20- 0.8 p ad20- 1.3 7.5max 1 p2.0 x 19=38.0 40.92 43.5 27.0 20 a 4- 2.5 20 40.5 29.0 24.92 2.0 25.0 45.0 47.0 50.0 0.5 2.5 1.5 inverter circuit
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