GPIODM-KPLCD GPIO Expander Keypad and LCD Demo Board
The GPIO Expander Keypad and LCD Demo Board is designed to demonstrate the use of the MCP23S08/17 (SPI interface) and the MCP23008/17 (I2C interface) devices in a keypad and LCD example. The MCP23X17 (16-bit) devices interface to a 2x16 LCD module and the MCP23X08 (8-bit) devices interface to a 4x4 keyed matrix.
- Demonstrates the use of MCP23X08 and MCP23X17 devices for LCD and keypad applications
- Test points allow for easy monitoring of SPI and I2C buses, as well as the keypad and LCD interface to PIC
- ICSP header for the PIC® microcontroller allows users to customize firmware to further evaluate the MCP23X08/17 devices.
- Can be powered from a 3.0V to 5V DC power source (connected to the +5V and GND test points)
Documentation & Software
| AppNotes | Last Updated | Size | |
|---|---|---|---|
| AN1043 - Unique Features of the MCP23X08/17 GPIO Expanders | 6/27/2006 1:31:52 PM | 297KB |  |
| AN972 - I/O Expansion Using the MCP23X08 and PIC10F202 | 1/27/2005 3:09:43 PM | 278KB |  |
| MCP23017/MCP23S17 Data Sheet | 7/6/2016 3:04:34 PM | 845KB | |
| PIC18F2455/2550/4455/4550 Data sheet | 10/27/2009 9:56:50 AM | 6MB | |
| MCP23008/MCP23S08 Data Sheet | 8/24/2007 1:56:49 PM | 649KB | |
| GPIO Expander Keypad and LCD Demo Board User's Guide | 11/10/2006 3:37:17 PM | 784KB | |
| GPIO Expander Keypad and LCD Demo Board Firmware | 11/10/2006 3:23:38 PM | 27KB |
- MCP23017/MCP23S17 Data Sheet MCP23S17
- PIC18F2455/2550/4455/4550 Data sheet PIC18F4550
- MCP23008/MCP23S08 Data Sheet MCP23S08
- AN1043 GPIODM-KPLCD
- AN972 GPIODM-KPLCD
- MCP23X08 8-bit GPIO Expander Evaluation Board Firmware MCP23X08EV
- MCP23017/MCP23S17 Data Sheet GPIODM-KPLCD
- PIC18F2455/2550/4455/4550 Data sheet GPIODM-KPLCD
- MCP23008/MCP23S08 Data Sheet MCP23X08EV
- GPIO Expander Keypad and LCD Demo Board User's Guide GPIODM-KPLCD
- GPIO Expander Keypad and LCD Demo Board Firmware GPIODM-KPLCD
- GPIODM-KPLCD
