MCP23009 8-Bit I/O Expander

Microchip Technology

Description

MCP23009/MCP23S09 8-Bit I/O Expander with Open-Drain Outputs .
TABLE 1-1: I2C™ PINOUT DESCRIPTION (MCP23009) Pin Name Pin Number 16-lead 18-lead 20-lead QFN PDIP/SOIC SSOP Pin Type Standard Function VDD 3.

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Datasheet Specifications

Part number: MCP23009
Manufacturer: Microchip ↗ Technology
File Size: 803.56 KB
Datasheet: MCP23009_MicrochipTechnology.pdf
Description: 8-Bit I/O Expander

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 MH

Applications

* The two devices differ only in the serial interface.
* MCP23009
* I2C interface
* MCP23S09
* SPI interface The MCP23X09 consists of multiple 8-bit configuration registers for input, output and polarity selection. The system master can enable the I/Os as either inputs

MCP23009 Distributors

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MCP23009 8-Bit Expander Microchip Technology

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