Overview The LC7930N, 7930NW are CMOS LSIs which incorporate 20-bit shift register, latch, and two sets of 20 LCD drivers. They also have two switching pins: one of them (channel 2) can be used as a scan-line driver (back plate) and the other (channel 1) as a segment driver. They are optimal for LCD interface with microcontroller (4 or 8 bits) or dot matrix controller circuit incorporating character generator. Features • Two channels of 20 output segment drivers • The configuration of 20 output segment drivers + 20 scanning terminal drivers available • A series data to connect with the microcontroller and three control signals • Able to be connected in series for large display • Built-in bidirectional shift register can be shifted in the direction that makes wiring easy • Operating supply voltage/ Operating temperature: VDD = 4.5 to 5.5 V / Topr = –20 to +75°C • Operating current drain : IDD = 1.0 mA max (Logic = 400 kHz, LCD = 1 kHz) • Package : Pin 60 Flat LC7930N : QIP60 Pin 64 Flat LC7930NW : SQFP64
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