MCP23017 16 bit I/O Expander Serial Module

MCP23017 I2C Serial Interface 16 bit I/O Expander Serial Module

This module is the 16 way IO extension module of the I2C interface, and built in the MCP23017 chip of MicroChip. The function of the chip is complete. Each IO can be arbitrarily configured as input or output.

MCP23017  Expander Serial Module Features

• 16-bit remote bidirectional I/O port

    - I/O pins default to input

• High-speed I2C™ interface (MCP23017)

    - 100 kHz

    - 400 kHz

    - 1.7 MHz

• High-speed SPI interface (MCP23S17)

    - 10 MHz (max.)

• Three hardware address pins to allow up to eight devices on the bus

• Configurable interrupt output pins

    - Configurable as active-high, active-low or open-drain

• INTA and INTB can be configured to operate independently or together

• Configurable interrupt source

    - Interrupt-on-change from configured register defaults or pin changes

• Polarity Inversion register to configure the polarityof the input port data

• External Reset input

• Low standby current: 1 µA (max.)

• Operating voltage:

    - 1.8V to 5.5V @ -40°C to +85°C

    - 2.7V to 5.5V @ -40°C to +85°C

    - 4.5V to 5.5V @ -40°C to +125°C

    Package included: 1 x CJMCU-2317 MCP23017 I2C Serial Interface 16 bit I/O Expander Serial Module    

Related Links

• Interfacing MCP23017 with Raspberry Pi
• Increasing Arduino IO Pins using MCP23017