LED驱动IC TT1668
面议
TT1628(SOP 28) / TT1668(SOP 24) is an LED Controller driver with key scan function . Ten
segment output lines, four grid output lines, Three segment/grid output lines , display memory,
pulse width control circuit , key scan circuit , 3 wire interface circuit are all incorporated into
a single chip to build a highly reliable peripheral device for a single chip microcomputer.
Features
? Multiple Display Modes (10 segment X 7 Grid to 13 segment X 4 Grid)
? Key Scanning (10 x 2 )
? 8 step Dimming adjustment
? Build-in RC oscillator
? Serial interface for clock, data Input/ output, strobe pins
? SOP28 package (TT1628) / SOP24 package(TT1668)
? CMOS technology
? Low power consumptio
