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MCP23S09 - 8-Bit I/O Expander

Microchip Technology

Download the MCP23S09 datasheet PDF. This datasheet also includes the MCP23009 variant, as both parts are published together in a single manufacturer document.

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MCP23S09 8-bit i/o expander by Microchip Technology - Datasheet Preview — Note: The manufacturer provides a single datasheet file (MCP23009_MicrochipTechnology.pdf) that lists specifications for multiple related part numbers.

Datasheet Details

Part number	MCP23S09
Manufacturer	Microchip Technology
File Size	803.56 KB
Description	8-Bit I/O Expander
Datasheet	MCP23S09 Datasheet

Overview

MCP23009/MCP23S09 8-Bit I/O Expander with Open-Drain Outputs.

Key Features

8-Bit Remote Bidirectional I/O Port: - I/O Pins Default to Input.
Open-Drain Outputs: - 5.5V Tolerant - 25 mA Sink Capable (per Pin) - 200 mA Total.
High-Speed I2C™ Interface (MCP23009): - 100 kHz - 400 kHz - 3.4 MHz.
High-Speed SPI Interface (MCP23S09): - 10 MHz.
Single Hardware Address Pin (MCP23009): - Voltage input to allow up to eight devices on the bus.
Configurable Interrupt Output Pins: - Configurable as active-high, active-low or o.

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