Interfacing the MCP41XXX and MCP42XXX Digital Potentiometers to a PICmicro Microcontroller

Interfacing the MCP41XXX and MCP42XXX Digital Potentiometers to a PICmicro Microcontroller. The MCP41XXX and MCP42XXX family of digital potentiometers communicate using a standard 3-wire SPI compatible interface. This application will discuss communications between these devices and a PIC16F876 microcontroller