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| BG12864A2 feature mechanical data item module dimension viewing area dot size dot pitch standard value unit pin assignment pin symbol function 1 2 3 4~11 12 13 14 gnd + 5v(+3v option) contrast adjustment data/instruction data read/write h -> l enable signal vss vdd vo d/i r/w e db0~7 mm mm mm mm 93.0 x 70.0 72.0 x 40.0 0.48 x 0.48 0.52 x 0.52 dimension bo lymin 1. cob with metal frame 2. built-in controller ks107/108 3. +5v single power supply, with built-in negative voltage 4. 1/64 duty cycle 5. option: temperature compensation circuit 6. option: led edge rgb 7. option: +3v single power supply 8. option: external negative voltage 15 16 chip select for ic2 cs1 cs2 17 18 reset negative voltage output(-4.8v) /rst vee 19 20 power supply for b/l (+) power supply for b/l (gnd) a k(r) input voltage supply current lcd driving voltage vdd idd vdd-vo vdd = +5v vdd = +5v 25 c 5.0 18 9 v ma v typical value electronic characteristics o item symbol condition unit data bus line chip select for ic1 21 22 power supply for b/l (gnd) k(g) power supply for b/l (gnd) k(b) 9.02 13.12(led b/l) 70.0 0.5 88.0 22- ? 1.0 pth p2.54*21=53.34 1.8 22 2.5 1 93.0 0.5 8.9 2.5 4- ? 2.5 pth 4- ? 6.5 pad 88.0 77.2 7.9 72.0(va) 10.5 66.52(aa) 33.24(aa) 13.24 65.0 2.5 50.2 9.9 40.0(va) 15.0 18.38 13 44.00 a r g b
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