MSM5279GS

The MSM5279GS is a kind of dot matrix LCD's segment driver LSI fabricated by low power CMOS metal gate technology. The LSI includes 80-bit bidirectional shift register, 80-bit level shifter and 80-bit 4-level driver. It receives the display driving data, which consists of 4-bit parallel, from the LCD controller LSI, then output the LCD driving waveform to the LCD. The MSM5279GS has the power down function which permits reduced power consumption. The MSM5279GS can drive a variety of LCD panel because the bias voltage, which determines the LCD driving voltage, can be optionally supplied from the external source.

There are some features about MSM5279GS 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; (4)bias voltage can be supplied externally; (5)power down function; (6)4-bit parallel data processing; (7)can be interfaced with the MSM6255GS, MSM6265GS, LCD controller LSI; (8)100 pin plastic QFP (QFP100-P-1420-K).

What comes next is about the absolute maximum ratings about MSM5279GS: (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 about MSM5279GS (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=-0.2 mA; (6)"L" output voltage, VOL: 0.4 V max at IO=0.2 mA; (7)input capacitance, CI: 5 pF typ at f=1 MHz.