PCA9539; PCA9539R
16-bit I2C-bus and SMBus low power I/O port with interrupt and reset
Rev. 9 — 8 November 2017
Product data sheet
1. General description
The PCA9539; PCA9539R is a 24-pin CMOS device that provides 16 bits of General Purpose parallel Input/Output (GPIO) expansion with interrupt and reset for I2C-bus/SMBus applications and was developed to...