
S6B1741 128 SEG / 129 COM DRIVER & CONTROLLER FOR STN LCD
3
CO
NTENTS
INTRODUCTION ............................................................................................................................................1
FEATURES....................................................................................................................................................1
BLOCK DIAGRAM..........................................................................................................................................2
PAD CONFIGURATION..................................................................................................................................3
PAD CENTER COORDINTES.........................................................................................................................5
PIN DESCRIPTION ........................................................................................................................................9
Power supply ..............................................................................................................................................9
LCD driver supply........................................................................................................................................9
System control ..........................................................................................................................................10
Microprocessor interface............................................................................................................................11
LCD driver outputs.....................................................................................................................................12
FUNCTIONAL DESCRIPTION....................................................................................................................... 13
Microprocessor Interface............................................................................................................................13
Display Data RAM (DDRAM)......................................................................................................................18
LCD Display Circuits..................................................................................................................................21
LCD Driver Circuit......................................................................................................................................26
Power supply circuits.................................................................................................................................29
Reference Circuit Examples .......................................................................................................................34
Reset Circuit .............................................................................................................................................36
INSTRUCTION DESCRIPTION..................................................................................................................... 38
SPECIFICATIONS ........................................................................................................................................ 62
Absolute Maximum Ratings........................................................................................................................62
DC Characteristics.....................................................................................................................................63
AC Characteristics.....................................................................................................................................66
REFERENCE APPLICATIONS...................................................................................................................... 72
Microprocessor Interface............................................................................................................................72
Connections between S6B1741 and LCD Panel ..........................................................................................74