PCA9534 - 8-bit I2C and SMBus/ low power I/O port
The PCA9534 is a16-pin CMOS device that provide 8 bits of General Purpose parallel Input/Output (GPIO) expansion for I2C/SMBus applications and was developed to enhance the Philips family of I2C I/O expanders.
The improvements include higher drive capability, 5V I/O tolerance, lower supply current,
PCA9534 Features
* 8-bit I2C GPIO
* Operating power supply voltage range of 2.3 V to 5.5 V
* 5 V tolerant I/Os
* Polarity inversion register
* Active low interrupt output
* Low stand-by current
* Noise filter on SCL/SDA inputs
* No glitch on power-up
