Description
XRA1200/1200P 8-BIT I2C/SMBUS GPIO EXPANDER SEPTEMBER 2011 REV.1.0.0 GENERAL .
The XRA1200/1200P is an 8-bit GPIO expander with an I2C/SMBus interface.
Features
* 1.65V to 3.6V operating voltage
* 8 General Purpose I/Os (GPIOs)
* 5V tolerant inputs
* Maximum stand-by current of 1uA at +1.8V
* I2C/SMBus bus interface
* I2C clock frequency up to 400kHz
* Noise filter on SDA and SCL inputs
* Up to 32 I2C Slav
Applications
* where the power is removed from the remote devices, but they may still be connected to the GPIO expander. As inputs, the internal pull-up resistors can be enabled or disabled and the input polarity can be inverted. The interrupt can be programmed for different behaviors. The interrupts can be progra