PCA8574; PCA8574A
Remote 8-bit I/O expander for I2C-bus with interrupt
Rev. 3 — 3 June 2013
Product data sheet
1. General description
The PCA8574/74A provides general-purpose remote I/O expansion via the two-wire bidirectional I2C-bus (serial clock (SCL), serial data (SDA)).
The devices consist of eight quasi-bidirectional ports, 400 kHz I2C-bus interfac...
