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| SG12832B ( 128 DOTS X 32 DOTS ) om FEATURES +5 V POWER SUPPLY 1/32 DUTY CYCLE BUILT-IN CONTROLLER (HT1670 OR EQUIVALENT) 8-BIT PARALLEL INTERFACE 4.2 V LED FORWARD VOLTAGE INTERFACE PIN CONNECTIONS NO. 1 2 3 4 5 6 7~10 11 12 13 w w at .D w VSS VDD LIGHT /CS /WR /RD aS ee h 4U t .c MECHANICAL DATA ITEM Module Size (W x H x T) Viewing Area ( W x H ) Active Area ( W x H ) Dot Size ( W x H ) Dot Pitch ( W x H ) DIMENSIONS 73.0 x 37.0 x 10.8 63.0 x 17.7 58.84 x 14.68 0.42 x 0.42 0.46 x 0.46 UNIT mm mm mm mm mm ABSOLUTE MAXIMUM RATINGS ITEM Supply Voltage For Logic Supply Voltage For LCD Drive Input Voltage SYMBOL LEVEL 0V 5V FUNCTION Power Supply Ground Power Supply Voltage LED Power Supply ( + ) Chip Singal Write Singal Read Signal Data Bus Line Time base or watchdog timer overflow flag 2kHz Or 4 kHz Tone Frequency Output Pair . 2kHz Or 4 kHz Tone Frequency Output Pair . SYMBOL VDD-VSS VDD-Vo VI MIN. 4.1V L L L H/L L - ELECTRICAL CHARACTERISTICS ITEM SYMBOL VDD-VSS VDD-Vo IDD DB0~DB3 /CLOCK BZ+ BZ- Supply Voltage For Logic Supply Voltage For LCD Supply Current Input EXTERNAL DIMENSIONS w w w t a .D S a Output Voltage Voltage e h "HIGH" Level "LOW" Level U t4 e VIH VIL VOH VOL .c 0 0 Vss m o TYP. MIN. 4.5 4.4 2.2 2.4 - MAX. 7 12 VDD UNIT V V V CONDITION - TYP. 5 4.8 3 - MAX. UNIT 5.5 5.2 4.5 VDD 0.6 0.4 V V mA V V V V VDD=5V Ta=25 VDD=5V - "HIGH" Level "LOW" Level w w w .D a aS t ee h 4U t om .c SG12832B ( 8 CHARACTERS X 2 LINES ) TIMING CHARACTERISTICS ITEM 4-Bit Interface Reset Pulse Width /WR Input Pulse Width /RD Input Pulse Width Rise/Fall Time Serial Data Clock Width Setup Time for DATA to WR , RD Clock Width Hold Time for DATA to WR , RD Clock Width Setup Time for CS to WR , RD Clock Width Hold Time for CS to WR , RD Clock Width SYMBOL MIN. 1.67 3.34 TYP. 250 120 120 120 100 100 MAX. UNIT. ns us us ns ns ns ns ns /CS Write Read tR , tF tsu th tsu1 th1 BLOCK DIAGRAM |
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