MCP4662T-104E/MF

Digital Potentiometers Overview

The MCP4662T-104E/MF is a dual-channel digital potentiometer IC from Microchip Technology, featuring nonvolatile memory and an I2C serial interface. It provides two independent rheostat configurations with 8-bit resolution (257 taps) and a nominal resistance of 100 kΩ. The device operates within a supply voltage range of 1.8V to 5.5V and supports I2C clock frequencies up to 3.4 MHz. Key features include WiperLock™ technology for securing calibration settings in EEPROM, high-voltage tolerant digital inputs up to 12.5V, and a DFN-8 package with an exposed thermal pad.

Digital Potentiometers Feature Summary

• Dual resistor network with 8-bit resolution (257 steps) and 100 kΩ nominal resistance
• Nonvolatile memory with WiperLock™ technology and 10 general-purpose EEPROM locations
• I2C serial interface supporting 100 kHz, 400 kHz, and 3.4 MHz modes
• High-voltage tolerant digital inputs (up to 12.5V) and wide operating voltage range (1.8V to 5.5V)

Digital Potentiometers Applications

• Industrial process control systems requiring precise analog signal adjustment
• Audio equipment for gain and volume control applications
• Test and measurement instruments needing programmable attenuation

Digital Potentiometers Procurement Notes

Verify the specific suffix 'MF' corresponds to the DFN-8 (3x3 mm) package with exposed thermal pad as documented in the datasheet. Confirm that the 'T' indicates tape and reel packaging if required by assembly processes. Ensure the I2C address configuration via A1 pin aligns with system bus requirements.

Digital Potentiometers Selection Notes

Select this component when dual isolated channels are needed with nonvolatile retention of wiper positions. The 100 kΩ value suits applications requiring higher impedance levels compared to the 5 kΩ or 10 kΩ variants. Verify that the 75 Ω typical wiper resistance meets the load current requirements, as maximum terminal currents are limited to 2.5 mA.

Digital Potentiometers Part Context

This part belongs to the MCP454X/456X/464X/466X family of digital potentiometers. The '62' designation indicates a dual rheostat configuration with nonvolatile memory. The '104' suffix specifies the 100 kΩ resistance value, while 'MF' denotes the DFN-8 package type.

Digital Potentiometers Replacement Considerations

Direct replacements within the same family include MCP4662-104E/MF (tube packaging) or other package variants like MCP4662-104E/MS (MSOP-8). Cross-family alternatives such as MCP4652 offer volatile memory only, which may not be suitable if power-down retention is required.