VSS VDD V0 VEE RS R/W E DB0--DB7 /CS1 /CS2 /CS3 /RST A K DB0-DB7 RS R/W E CS1 CS2 CS3 /RST VSS VDD VEE POWER SUPPLY CIRCUIT SEGMENT DRIVER 64S COMMON DRIVER 64C LED A LED K A K LED BACKLIGHT * SEGMENT DRIVER: KS0108 OR EQUIV. * COMMON DRIVER KS0107 OR EQUIV. m o .c U 4 t e e h S a t a .D w w w 1 PITCH 2.54 4 5 6 7 8--15 16 17 18 19 20 21 GROUND POWER SUPPLY FOR LOGIC AND LCD OPERATING VOLTAGE FOR LCD NEGATIVE VOLTAGE OUTPUT/INPUT(-10V) DATA/INSTRUCTION SELECT READ/WRITE SELECT ENABLE SIGNAL DATA BUS CHIP SELECT OF IC1 (LOW EFFECTIVE) CHIP SELECT OF IC2 (LOW EFFECTIVE) CHIP SELECT OF IC3 (LOW EFFECTIVE) RESET SIGNAL(LOW EFFECTIVE) POWER SUPPLY FOR LED B.L.(+) POWER SUPPLY FOR LED B.L.(-) ABSOLUTE MAXIMUM RATING ITEM SYMBOL VDD-VSS VDD-V0 Vi 21 POWER SUPPLY(LOGIC) POWER SUPPLY(LCD DRV.) INPUT VOLTAGE MIN MAX 0 0 Vi 6.5 18.0 VDD UNIT V V V * FOR LED BACKLIGHT T1=14.0MAX T2=9.0±0.3 * FOR EL OR NO BACKLIGHT T1=11.0MAX T2=6.0±0.3 VOLTAGE FOR LOGIC S...
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