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XRA1402

Exar
Part Number XRA1402
Manufacturer Exar
Description 8-BIT SPI GPIO EXPANDER
Published Aug 27, 2016
Detailed Description XRA1402 8-BIT SPI GPIO EXPANDER SEPTEMBER 2011 REV. 1.0.0 GENERAL DESCRIPTION The XRA1402 is an 8-bit GPIO expander w...
Datasheet PDF File XRA1402 PDF File

XRA1402
XRA1402


Overview
XRA1402 8-BIT SPI GPIO EXPANDER SEPTEMBER 2011 REV.
1.
0.
0 GENERAL DESCRIPTION The XRA1402 is an 8-bit GPIO expander with an SPI interface.
After power-up, the XRA1402 has internal 100K ohm pull-up resistors on each I/O pin that can be individually enabled.
In addition, the GPIOs on the XRA1402 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 ...



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