The MCP41/424X devices are non-volatile, 7-bit (129 wiper steps) digital potentiometers with EEPROM and an SPI compatible interface. The MCP41/42XX family is 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. It is useful for equipment that requires factory trimming or recalibration. The MCP41/42XX devices offer a variety of configurations simplifying design while minimizing cost, package size and pin count.

  7-bit: 128 Resistors with Taps to VSS and VDD

  SPI compatible interace

  Automatic Recall of Potentiometer Wiper Settings

  Resistance Values: 5kΩ, 5kΩ, 10kΩ, 50kΩ,100kΩ

  Low Tempco:

  Absolute (Rheostat): <100 ppm (typ.)

  Ratiometric (Potentiometer): <10 ppm (typ.)

  Low Wiper Resistance: 100Ω (typ.)

  WiperLock™ Technology to Secure the EEPROM

  Low-Power Operation: 1µA Max Static Current

  Wide Operating Voltage: 2.7V to 5.5V

  Extended Temperature Range: -40°C to +125°C