WIRELESS & SENSING SX1501/SX1502/SX1503 4/8/16 Channel Low Voltage GPIO SX1501/SX1502/SX1503 4/8/16 Channel Low Voltage GPIO with NINT and NRESET GENERAL DESCRIPTION The SX1501, SX1502 and SX1503 are complete ultra low voltage General Purpose parallel Input/Output (GPIO) expanders ideal for low power handheld battery powered equipment.
They allow easy serial expansion of I/O through a standard I2C interface.
GPIO devices can provide additional control and monitoring when the microcontroller or chipset has insufficient I/O ports, or in systems where serial communication and control from a remote location is advantageous.
These devices can also act as a level shifter to connect a microcontr...

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