4 D&C PCF8574 2012-04-07 DIP I2C Expander Port DIP16 [THT] PCF8574 PCF8574 8-bit parallel-load shift registers Positive supply voltage

Output pin

Output pin

Output pin

Output pin

Ground

Output pin

Output pin

Output pin

Output pin

Interrupt pin, (active low)

Address pin

Address pin

Serial Clock pin

Serial Data pin

Output Pin