CH455DS1.PDF

The scope of application	version	upload time	size
CH455	1.5	2021-11-29	192KB
CH455 datasheet. CH455 can be used for 32 LEDs or 4 digital tubes drive, and 28-key keyboard and 3 combination keys scanning control.
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relation files

file name	file content
CH450DS1.PDF	CH450 datasheet. CH450 is used for driver of 48 LEDs or 6 digital tubes and for 48-key keyboard scan control, compatible with high-speed two-wire interface.
CH422DS1.PDF	CH422 datasheet. Remote I/O expander chip of two-wire serial interface, used for display of 4 digital tubes and I/O expansion application. The input is a two-wire interface compatible with I2C, and the output is an 8-bit bidirectional I/O port and 4-bit large-current output port.
CH423DS1.PDF	CH423 datasheet. A remote I/O expander with 2-wire serial interface, used for 16 digital tube display or I/O expansion applications through two wires. The input terminal is a two-wire interface compatible with I2C, and the output terminal is an 8-bit bidirectional input/output port and a 16-bit high-current output port.
CH453DS1.PDF	CH453 datasheet. CH453 can be used for 128 LEDs or 16×8 segment digital tube drive and 64-key keyboard scanning control.
CH452DS1.PDF	CH452 datasheet. CH452 can be used for 64 LEDs or 8×8 segment digital tube drive and 64-key keyboard scanning control, simplifying the workload of MCU.
CH454DS1.PDF	CH454 datasheet. CH454 is used for display driver of 16-segment LED displays or 8 alphanumeric displays and for keyboard scan control, supports 17 segments x 7 digital tubes, 16 segments x 8 digital tubes and 8 segments x 16 digital tubes.
CH456DS1.PDF	CH456 datasheet. CH456 is used for 16 digital tubes display drive and 64-key keyboard scanning. CH456 supports 2-wire serial interface, and is compatible with IIC, simplifying the workload of MCU.