Microchip Technology MCP23S09
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 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 mi