unit pin symbol level mm vcc i mm vss i mm vee i mm lp h/l m h/l disp off h/l symbol min type max unit nc i vdd v flm h/l idd ua cp h/l v led v nc i i led ma d0 h/l topr i d1 h/l tsto i d2 h/l d3 h/l a i symbol min type max unit k i v ih 7 % % i 7 % % v v il i 7 % % v v oh 7 % % i 7 % % v v ol i v block diagram power supply output hight voltage output low voltage input hight voltage input low voltage electrical characteristics backlight power (+4.2v) item backlight power (0v) led voltage no connect led current display data input operating temp. storage temp. operating voltage frame signal operating current clock pulse input absolute maximum ratings h:display on; l:display off item no connect dot size(wh) ? data latch signal alternater for lcd driver viewing area(wh) ? gnd(0v) dot pitch(wh) ? power supply for lcd mechanical data pin connections (no controller) item nominal dimensions function module size(wht) ? ? supply voltage for logic(+5v) RT256128A-1 4 ) & / ; ) & / 3 6 * 5 & & - & $ 5 3 0 / * $ $ 0
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l tel:86-755-27931867, 27931884, 27931806, 27931875 fax:86-755-27931864 postcode:518102 e-mail:ruite168@21cn.com htt p ://www.ruitelcd.com 10~20k k(0v) a(+4.2v) vss vee -20v segment drive segment drive segment drive 80 80 80 64 k a 32 80 64 led backlight 80 lcd panel 256 x 128 dots 64 common drive segment drive segment drive segment drive cp, d0~d3 lp, m, disp off flm 3 64 16 segment drive
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