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XRA1201P

Exar
Part Number XRA1201P
Manufacturer Exar
Description 16-BIT I2C/SMBUS GPIO EXPANDER
Published Aug 27, 2016
Detailed Description XRA1201/1201P 16-BIT I2C/SMBUS GPIO EXPANDER SEPTEMBER 2011 REV. 1.0.0 GENERAL DESCRIPTION The XRA1201/1201P is a 16-...
Datasheet PDF File XRA1201P PDF File

XRA1201P
XRA1201P

Overview
XRA1201/1201P 16-BIT I2C/SMBUS GPIO EXPANDER SEPTEMBER 2011 REV.
1.
0.
0 GENERAL DESCRIPTION The XRA1201/1201P is a 16-bit GPIO expander with an I2C/SMBus interface.
After power-up, the XRA1201 has internal 100K ohm pull-up resistors on each I/O pin that can be individually enabled.
The XRA1201P has the internal pull-up resistors enabled upon power-up in case it is necessary for the inputs to be in a known state.
In addition, the GPIOs on the XRA1201/1201P can individually be controlled and configured.
As outputs, the GPIOs can be outputs that are high, low or in three-state mode.
The three-state mode feature is useful for 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 programmed to generate an interrupt on the rising edge, falli...


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