SPLC100A1

SPLC100A1 40-CHANNEL SEG/COM LCD DRIVER GENERAL DESCRIPTION The SPLC100A1 is a Liquid Crystal Display driver that contains two sets of 20-bit bi-directional shift registers, 20 data latch flip-flops and 20 Liquid Crystal Display drivers. It also features 40-channel outputs that can be applied as common or segment driver. The SPLC100A1 receives serial display data from a display control LSI, converts it into parallel data and supplies liquid crystal display waveforms to the liquid crystal. FEATURES Liquid Crystal Display driver with serial/parallel BLOCK DIAGRAM Y1 Y20 conversion function. V1,V2 Serial transfer facilitates board design. Capable of interfacing to liquid crystal display controllers: HD43160AH, HD61830, HD44780, HD44790, SPLC780 40 internal LCD drivers. Internal serial/parallel conversion circuits: — 20-bit — 20-bit V3,V4 LCD Drivers Latch signal CL1 DL1 CL2 DL2 FCS M V1,V2 V5,V6 Data Shift signal 20-bit latch 20-bit bidirectional shift register Switching circuit 20-bit bidirectional shift register Data 20-bit latch LCD Drivers Shift direction Data Data Shift direction SHL1 DR1 DR2 SHL2 shift register latch 2 2 Y21 Y40 Power supply: — — Internal logic: 2.7V – 5.5V Liquid crystal display driver circuit: 3.0V – 11.0V CMOS process. Sunplus Technology Co., Ltd. 1 Rev.: 1.0 1999.10.04 SPLC100A1 FUNCTION DESCRIPTION SEGMENT DRIVER When SPLC100A1 is used as a segment driver, FCS is connected to VSS. In this case, both channel 1 and channel 2 shi...