MCP23009

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 to configure the polarity of the input port data External Reset Input Low Standby Current: - 1 µA (-40°C  TA  +85°C) - 6 µA (+85°C  TA  +125°C) Operating Voltage: - 1.8V to 5.5V Available Packages: - 16-Lead QFN (3x3x0.9 mm) - 18-Lead PDIP (300 mil) - 18-Lead SOIC (7.50 mm) - 20-Lead SSOP (5.30 mm) SCL SDA RESET INT ADDR MCP23009 I2C™ Serializer/ Deserializer Multi-Bit Decode Control 8 8 Configuration/ Control Registers GPIO GP0 GP1 GP2 GP3 GP4 GP5 GP6 GP7  2009-2014 Microchip Technology Inc. DS20002121C-page 1 MCP23009/MCP23S09 Package Types VDD NC SCL SDA ADDR RESET INT GP0 GP1 1 2 3 4 5 6 7 8 9 MCP23009 PDIP, SOIC 18 VSS 17 NC 16 NC 15 GP7 14 GP6 13 GP5 12 GP4 11 GP3 10 GP2 MCP23009 3 x 3 QFN* GP7 GP6 GP5 GP4 16 15 14 13 VSS 1 12 GP3 NC 2 VDD 3 SCL ...