Microchip Technology Inc

AN1043

Title:
Unique Features of the MCP23X08/17 GPIO Expanders
Name:
AN1043
Date:
06/27/2006
Author:
Pat Richards
Description:
GPIO expanders provide easy I/O expansion using standard serial interfaces. GPIO products are used to increase the I/O on an MCU or provide remote I/O using a serial interface. This application note discusses the feature set and use of the MCP23X08/17 (8-bit and 16-bit) GPIO Expanders. The MCP23X08 are 8-bit GPIO Expanders: - MCP23008: I2C Interface - MCP23S08: SPI Interface The MCP23X17 are 16-bit GPIO Expanders: - MCP23017: I2C Interface - MCP23S17: SPI Interface The functions and features of the MCP23X08 and MCP23X17 are basically the same, except where otherwise noted.
 
 Application Notes & Source Code
 Last Updated
Size
 
  AN1043
  06/27/2006
  297KB
 Silicon Products
Last Updated
  MCP23008
  12/20/2004
  MCP23017
  05/07/2009
  MCP23S08
  01/25/2005
  MCP23S17
  06/24/2005