Exar XRA14xx 8-Bit SPI
General Purpose I/O Expanders

These Exar XRA14xx 8-Bit SPI General Purpose I/O Expanders features a SPI interface. After power-up, the XRA14xx 8-Bit General Purpose I/O Expanders includes an internal 100K ohm pull-up resistor on each I/O pin that can be individually enabled. In addition, the GPIOs on these Exar XRA14xx 8-Bit General Purpose I/O Expanders can individually be controlled and configured. Applications for these devices include PDAs, cell phones, data, battery operated, GPS and bluetooth devices.

Features

1.65V to 3.6V operating voltage
8 or 16 General Purpose I/Os (GPIOs)
5V tolerant inputs
Maximum stand-by current of 1uA at +1.8V
SPI bus interface
Individually programmable inputs
Individually programmable outputs
Open-drain active low interrupt output
3kV HBM ESD protection per JESD22-A114F
200mA latch-up performance per JESD78B

Applications

Personal Digital Assistants (PDA)
Cellular Phones/Data Devices
Battery-Operated Devices
Global Positioning System (GPS)
Bluetooth

Part Number	Package	No. of GPIOs	Max. SPI Clock Freq.	Datasheet


XRA1402IG16-F	TSSOP-16	8	26MHz
XRA1402IL16-F	QFN-16
XRA1404IG16-F	TSSOP-16	8	26MHz
XRA1404IL16-F	QFN-16
XRA1403IG24-F	TSSOP-24	16	26MHz
XRA1403IL24-F	QFN-24
XRA1405IG24-F	TSSOP-24	16	26MHz
XRA1405IL24-F	QFN-24
Part Number	Description			Users Manual
XRA1402IG16-0B-EB	Evaluation Board for XRA1402IG16
XRA1403IG24-0B-EB	Evaluation Board for XRA1403IG24
XRA1403IL24-0B-EB	Evaluation Board for XRA1403IL24
XRA1404IG16-0B-EB	Evaluation Board for XRA1404IG16
XRA1404IL16-0B-EB	Evaluation Board for XRA1404IL16
XRA1405IG24-0B-EB	Evaluation Board for XRA1405IG24
XRA1405IL24-0B-EB	Evaluation Board for XRA1405IL24