MSM6555B-xx

E2B0034-27-Y2 ¡ Semiconductor MSM6555B-xx ¡ Semiconductor SEGMENT DRIVER This version: Nov. 1997 MSM6555B-xx Previous version: Mar. 1996 DOT MATRIX LCD CONTROLLER WITH 17-DOT COMMON DRIVER AND 80-DOT GENERAL DESCRIPTION The MSM6555B-xx is a dot matrix LCD controller with 17-dot common driver and 80-dot segment driver comprising a display RAM, character generation ROM, LCD bias generation circuit and control circuit. The LCD driving bias generation circuit incorporated in the MSM6555B-xx allows LCD bias www.DataSheet4U.com voltage to be obtained merely by providing a specified capacitance externally. The MSM6555B-xx can display the arbitrator (arbitrary character) patterned on the LCD panel. FEATURES Serial interface with microcontroller Dot matrix LCD controller with 17-dot common driver and 80-dot segment driver (up to 16 digits ¥ 2 lines can be displayed) 256 character ROM (5 ¥ 7 dots) 1/9 duty (1 line; character + cursor + arbitrator) or 1/17 duty (2 lines; character + cursor, 1 line; arbitrator) display LCD driving bias voltage generation circuit 80-dot arbitrator Low standby current Gold bump chip Optional when TCP is adopted 1/27 ¡ Semiconductor MSM6555B-xx BLOCK DIAGRAM VDD C1 to C17 VSS 17 COMMON DRIVER S1 to S80 80 SEGMENT DRIVER VC2 VCC2 LATCH 80 VSS1 www.DataSheet4U.com VSS4 LCD BIAS GENERATOR 1/4 BIAS VDD VSS1 VSS2,3 VSS4 VSS5 80 SHIFT REGISTER VSS5 VSS2,3 N1 VOLTAGE REGULATOR N2 RAM (448 BITS) CHARACTER GENERATOR ROM (256 ¥ 5...