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AN1043
| Title |
Title
Unique Features of the MCP23X08/17 GPIO Expanders
|
|---|---|
| Name |
Name
AN1043
|
| Date |
Date
06/24/2015
|
| Application Categories |
Application Categories
Peripheral /
CAN
|
| Description |
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.
|
Development Tools
| Title | Part Number | Title | |
|---|---|---|---|
|
GPIODM-KPLCD
GPIO EXPANDER KEYPAD AND LCD DEMO BOARD
|
|
GPIODM-KPLCD | GPIO EXPANDER KEYPAD AND LCD DEMO BOARD |
Silicon Products
| Title | Product | Title |
|---|---|---|
|
MCP23008
8-Bit I2C I/O Expander with Serial Interface
|
MCP23008 | 8-Bit I2C I/O Expander with Serial Interface |
|
MCP23S17
16-Bit SPI I/O Expander with Serial Interface
|
MCP23S17 | 16-Bit SPI I/O Expander with Serial Interface |
|
MCP23S08
8-Bit SPI I/O Expander with Serial Interface
|
MCP23S08 | 8-Bit SPI I/O Expander with Serial Interface |
|
MCP23017
16-Bit I2C I/O Expander with Serial Interface
|
MCP23017 | 16-Bit I2C I/O Expander with Serial Interface |