The MCP4661T-103E/ST is a dual digital potentiometer containing two 8-bit resistor networks. It offers a 10 kΩ end-to-end resistance with 257 steps and a typical wiper resistance of 75 Ω. The device includes non-volatile EEPROM memory, allowing the wiper settings to be saved and recalled upon power-up. Controlled via an I2C serial interface supporting speeds up to 3.4 MHz, it operates over a supply voltage range of 2.7V to 5.5V. Its dual configuration and extended temperature range make it suitable for precision calibration, signal trimming, and level adjustment in various electronic systems.