MCP23008-xML / MCP23008-xP

Adapts or transmits signals between devices.

Tutorial / documentation

Communication

Quick documentation & first test preparation

  1. Identify component MCP23008-xML and its package.
  2. Identify the protocol, logic levels and each pin’s function.
  3. Check required termination and pull-up/pull-down resistors.
  4. Consult the application circuit in the linked documentation before testing.

MCP23008-xML

8-bit I/O expander, I2C, interrupts, QFN-20

  • 8-bit I/O expander, I2C, interrupts, QFN-20
  • Identify the protocol, logic levels and each pin’s function.
  • Check required termination and pull-up/pull-down resistors.
  • The manufacturer’s pinout and absolute limits take precedence over this page.
Technical documentation

MCP23008-xP

8-bit I/O expander, I2C, interrupts, PDIP-18

  • 8-bit I/O expander, I2C, interrupts, PDIP-18
  • Identify the protocol, logic levels and each pin’s function.
  • Check required termination and pull-up/pull-down resistors.
  • The manufacturer’s pinout and absolute limits take precedence over this page.
Technical documentation