TCA9539 - Low Voltage 16-Bit I2C and SMBUS Low-Power I/O Expander
The TCA9539 is a 24-pin device that provides 16 bits of general purpose parallel input and output (I/O) expansion for the two-line bidirectional I2C bus (or SMBus protocol).
The device can operate with a power supply voltage (VCC) range from 1.65 V to 5.5 V.
The device supports 100-kHz (I2C Standard
TCA9539 Features
* 1 I2C to Parallel Port Expander
* Low Standby-Current Consumption
* Open-Drain Active-Low Interrupt Output
* Active-Low Reset Input
* 5-V Tolerant I/O Ports
* Compatible With Most Microcontrollers
* 400-kHz Fast I2C Bus
* Input and Out
