MCP4021-103E/SN

Overview

The MCP4021-103E/SN is a nonvolatile, 6-bit digital potentiometer manufactured by Microchip Technology. It features a nominal resistance of 10 kΩ with 64 taps and utilizes WiperLock™ technology to store settings in EEPROM without external write-protect pins. The device operates on a simple Up/Down (U/D) serial interface and supports high-voltage tolerant inputs up to 12.5V. Electrical specifications include a supply voltage range of 2.7V to 5.5V, low static current consumption of 1 µA maximum, and an extended operating temperature range from -40°C to +125°C.

Feature Summary

• Nonvolatile memory with WiperLock™ technology for secure wiper setting retention
• High-voltage tolerant digital inputs supporting up to 12.5V
• Simple Up/Down (U/D) serial control interface
• Low power operation with 1 µA maximum static current

Applications

• System trimming and calibration
• Set-point adjustment
• Offset-adjust circuits
• Signal conditioning applications

Procurement Notes

Verify the specific suffix 'SN' corresponds to the SOIC-8 package when sourcing. Confirm RoHS compliance status through official manufacturer documentation or authorized distributors prior to procurement.

Selection Notes

Select this component for designs requiring nonvolatile resistance adjustment via a minimal two-wire interface. Ensure the 10 kΩ resistance value aligns with circuit requirements and that the U/D protocol fits the system's control logic constraints.

Part Context

This part belongs to the MCP402X family of low-cost nonvolatile digital potentiometers. It shares core architectural features with the MCP4022, MCP4023, and MCP4024, differing primarily in terminal configuration and package options.

Replacement Considerations

Direct functional replacements within the same family include MCP4021-503E/SN (50 kΩ) and MCP4021-102E/SN (1 kΩ). Verify pinout compatibility and resistance tolerance before substitution.