IZ7065

40CH Segment/Common Driver for DOT MATRIX LCD TECHNICAL DATA IZ7065 Features Display driving bias: static -1/5 Power supply voltage: +5V ± 10%, +3V ± 10% Supply voltage for display: 0 ~ -5V(VEE) Interface Driver (cascade connection) Controller Other IZ7065 IZ7066 KS0066 HD44780 SED1278 CMOS Process Bare chip available Functions Dot matrix LCD driver with 40 channel output. Selectable function to use common/segment drivers simultaneously. Input/Output signal - output: 20 × 2 channel waveform for LCD driving - input: - Serial display data and control pulse from the controller LSI. - Bias voltage (V1-V6) Introduction The IZ7065 is a LCD driver LSI which is fabricated by low power CMOS technology. Basically this LSI consists of 20 × 2 bit bidirectional shift register, 20 × 2 bit data latch and 20 × 2 bit driver (refer to Fig 1). This LSI can be used a common or segment driver. 2011, April, Ver. 01 Block Diagram SS CC 12 SS CC 12 90 SS CC 22 12 IZ7065 SS CC 34 90 PART 1 PART 2 V1 V1 V2 V3 L CD DRI VER V2 L CD DRI VER V4 V5 V6 DATA L ATCH (20 bit) BI DI RECTI ONAL SH I FT REGI STER (20bit) M SW CL 1 CONTR CL 2 L OGI C DATA L ATCH (20 bit) BI DI RECTI ONAL SH I FT REGI STER (20bit) VDD Vss V EE FD CL S1 SD HR L1 1 D L 2 SD HR L2 2 Figure 1. IZ7065 functional block diagram. 2011, April, Ver. 01 IZ7065 Pin Description PIN(NO.) VDD (24) GND (34) VEE (31) V1 V2 (44,45) SC1÷SC20 V3 V4 (46,47) SHL1 (41) INPUT/ OUTPUT Power Input NAME...