Part Number
|
MCP23S09 |
Manufacturer
|
Microchip Technology |
Description
|
8-Bit I/O Expander |
Published
|
Feb 25, 2011 |
Detailed Description
|
MCP23009/MCP23S09
8-Bit I/O Expander with Open-Drain Outputs
Features:
• 8-Bit Remote Bidirectional I/O Port: - I/O Pi...
|
Datasheet
|
MCP23S09
|
Overview
MCP23009/MCP23S09
8-Bit I/O Expander with Open-Drain Outputs
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 open-drain
Block Diagram
CS SCK
SI SO
MCP23S09 SPI
• Configurable Interrupt Source: - Interrupt-on-Change from configured defaults or pin change
• Polarity inversion register...
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