BL55077

BL55077 Shanghai Belling Corp., Ltd zip: 200233 Tel: 86-021-64850700 Fax: 86-021-64855865 LCD Driver for 160 Display Units BL55077 1 General Description The BL55077 is a general LCD driver IC for 160 units LCD panel. It features a wide operating supply voltage range, incorporates simple communication interface with microcomputer and is suitable for multiple application. 2 Features Advanced low power CMOS Technology Selection of 1/2 or 1/3 bias, selection of 1/2 or 1/3 or 1/4 duty. Operation voltage: 2.5~5.5V Serial data interface 160(40x4) Display Units Low power dissipation design: Power saving mode: Idd=14uA at 5V and Idd=9uA at 3.3V; Sleeping mode: Idd<2uA Maybe cascaded up to 16PCs for large LCD applications On-chip RC oscillator VLCD for adjusting LCD operating voltage Excellent EMC immunity Compatible with general microcomputer 3 Pin Assignment Fig 1 1 Shanghai Belling Corp., Ltd BL55077 zip: 200233 Tel: 86-021-64850700 Fax: 86-021-64855865 4 Pin Description Pin No. Pin name Function 10 SDA Serial data input/output 11 SCI Serial clock input 12 SYNC Cascade synchronization clock 13 CLK External clock input 14 Vdd Supply voltage 15 16-18 OSC A0、A1、A2 Oscillator input Subaddress inputs 19 20 21 25-28 29-32、34-37、49-64、2-7 SA0 Vss Vlcd Com0、Com2、Com1、Com3 S0——S39 Slave address input;bit0 ground LCD supply voltage Common terminal driving output Segment terminal driving output 1、8、9、22、23、24、33、48 NC Unused Tab.1 5 Function Description 1.func...