CH422G 1MHz I/O Expander IC SOP-16

CH422G 1MHz I/O Expander IC SOP-16

CH422 chip can be used for digital tube display driver or I/O expansion. CH422 has a built-in clock oscillation circuit that can dynamically drive 4 Digital tube or 32 LED light-emitting tubes; when CH422 is used for I/O expansion, it can provide 8 bidirectional input and output pins and 4 pass Use the output pin; CH422 exchanges data with the microcontroller through a 2-wire serial interface.

Datasheet

Specifications

• Operating Temperature: -40℃~+85℃
• Clock Frequency: 1MHz
• Interrupt Output:
• Output Type: Push-pull
• Supply Voltage: 3V~5V
• Number of I/O: 8
• Interface: I2C; SPI