MSM5278GS

The MSM5278GS is a kind of dot matrix LCD's common driver LSI fabricated by low power CMOS metal gate technology. The LSI includes 64-bit bidirectional shift register, 64-bit level shifter and 64-bit 4-level driver. The LSI has 64 output pins to be connected to the LCD. By connecting more than two MSM5278GSs in series, the LSI is applicable to a wide LCD panel. The LSI can drive a variety of LCD because the bias voltage, which determines the LCD driving voltage, can be optionally supplied from the external source.

There are some features of MSM5278GS as follows: (1)supply voltage: 4.5 to 5.5 V; (2)LCD driving voltage: 8 to 20 V; (3)applicable LCD duty: 1/64 to 1/128 (two chips of the MSM5278GS are required to drive 1/128 duty LCD); (4)bias voltage can be supplied externally; (5)80 pin plastic QFP (QFP80-P-1420-K).

What comes next is about the absolute maximum ratings of MSM5278GS : (1)supply voltage (1), VDD: -0.3 to +6.0 V at Ta=25; (2)supply voltage (2), VLCD: 0 to 22 V when Ta=25; (3)input voltage, VI: -0.3 to VDD+0.3 V at Ta=25; (4)storage temperature, TSTG: -55 to +150. Then is about the recommended operating conditions: (1)supply voltage (1), VDD: 4.5 to +5.5 V; (2)supply voltage (2), VLCD: 8 to 20 V; (3)operating temperature, TOP: -20 to +85.

The following is about the DC characteristics of MSM5278GS (VDD=5 V±10%, Ta=-20 to +85): (1)"H" input voltage, VIH: 0.8VDD V min; (2)"L" input voltage, VIL: 0.2VDD V max; (3)"H" input current, IIH: 1A max when VIH=VDD; (4)"L" input current, IIL: -1A max when VIL=0 V; (5)"H" output voltage, VOH: VDD-0.4 V min at IO=-4 mA; (6)"L" output voltage, VOL: 0.4 V max at IO=0.4 mA; (7)power dissipation, IDD: 100A max at CP=DC, VDD-VEE=18 V, no load.