PCA9537 Datasheet (NXP) - 4-bit I2C and SMBus low power I/O port

PCA9537, 4-bit I2C and SMBus low power I/O port

The PCA9537 is a 10-pin CMOS device that provides 4 bits of General Purpose parallel Input/Output (GPIO) expansion with interrupt and reset for I2C-bus/SMBus applications.

It was developed to enhance the NXP Semiconductors family of I2C-bus I/O expanders.

I/O expanders provide a simple solution when

PCA9537 Features

* 4-bit I2C-bus GPIO with interrupt and reset

* 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

* Active LOW reset input

* Low standby current

* Nois