MCP413x, MCP415x, MCP423x, MCP425x Digital POT ICs Microchip Technology MCP413x, MCP415x, MCP423x, and MCP425x Digital POT ICs are 7-bit and 8-bit, single or dual SPI digital potentiometers with non-volatile memory. These devices are available with end-to-end resistor values of 5KΩ, 10KΩ, 50kΩ and 100KΩ. These devices offer WiperLock™ Technology which allows the user unlimited reprogramming and locking of the wiper setting. This feature is useful for equipment that requires factory trimming or recalibration. The MCP413x, MCP415x, MCP423x, MCP425x Digital Potentiometers offer a variety of configurations simplifying design while minimizing cost, package size, and pin count.