MCP4131-503E/P 50K Digital POT with Volatile Memory - 8 DIP- Microchip

MCP4131-503E/P 50K Digital POT with Volatile Memory - 8 DIP- Microchip

Technical Datasheet (2.46 MB) 

The MCP41/42XX devices are non-volatile, 7-bit (129 wiper steps) digital potentiometers that are programmed/reprogrammed through an SPI compatible interface. 

The MCP41/42XX devices offer a variety of configurations simplifying design while minimizing cost, package size and pin count.

503E/P Implies that it is a 50K Potentiometer. 

It has an internal non volatile memory which is used to recall the wiper settings.

• Arduino Library for Interfacing MCP4xxx range of SPI controlled Digital Potentiometers.