MCP4442-502E/ST, Digital Potentiometer 5kΩ 129-Position Linear 4-Channel Serial-I2C (2 Wire) 14 Pin, TSSOP

The MCP444x/446x series of devices from Microchip are Digital Potentiometers with non-volatile memory that are programmed via an I2C interface. These Digital POTs include Microchip’s WiperLock™ Technology which allows the wiper setting to be locked in place, protecting the wiper configuration from corruption.

MCP4441/MCP4461 devices are configured as Potentiometers, MCP4442/MC4462 as Rheostats.

Quad Resistor Network
Two Resistor Network Resolutions – MCP444x 7-bit 128 Resistors (129 Taps), MCP446x 8-bit 256 Resistors (257 Taps)
Zero Scale to Full Scale Wiper operation
Low Wiper Resistance: 75 Ω (typical)
Low Temperature Coefficient
Non-volatile Memory
I2C Serial Interface
Resistor Network Terminal Disconnect Feature
Reset input pin
Write Protect Feature:
Brown-out reset protection (1.5V typical)
Serial Interface Inactive current (2.5 uA typical)
High-Voltage Tolerant Digital Inputs: Up to 12.5V
Supports Split Rail Applications
Wide Operating Voltage: 2.7V to 5.5V

Digital Potentiometer - Microchip