特徴

• MCP444x/446x Digital Potentiometers. 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. Features. 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