MCP4023T-202E/CH

Overview

The MCP4023T-202E/CH is a nonvolatile, 6-bit digital potentiometer manufactured by Microchip Technology. It features a nominal resistance of 2.1 kΩ with 64 taps and operates within a supply voltage range of 2.7V to 5.5V. The device utilizes a simple Up/Down (U/D) serial interface for wiper control and incorporates WiperLock™ technology to store settings in EEPROM. Key electrical parameters include a typical wiper resistance of 75 Ω, a maximum static current of 1 µA, and high-voltage tolerant inputs up to 12.5V. It supports operation from -40°C to +125°C.

Feature Summary

• Nonvolatile memory with WiperLock™ technology for power-on recall of wiper settings
• Simple Up/Down (U/D) serial control interface with high-voltage tolerance up to 12.5V
• Low-power operation with 1 µA maximum static current and 2.7V to 5.5V operating range
• 64-tap resolution with 2.1 kΩ nominal resistance and low temperature coefficient

Applications

• Audio volume control and tone adjustment circuits
• Programmable gain amplifiers and sensor biasing
• Voltage reference trimming and calibration systems
• Power supply output voltage setting and monitoring

Procurement Notes

Verify the specific package marking and date code against the manufacturer's latest documentation. Confirm that the 'CH' suffix corresponds to the SOT-23-6 package variant as specified in the datasheet. Ensure environmental compliance requirements match the RoHS status indicated in official product specifications.

Selection Notes

Select this component when a single-channel digital potentiometer with nonvolatile storage is required. The 2.1 kΩ resistance value suits applications needing lower impedance paths. The U/D interface simplifies control logic compared to I2C or SPI alternatives. Verify that the 12.5V input tolerance meets system signal levels.

Part Context

This part belongs to the MCP4021/2/3/4 family of low-cost nonvolatile digital potentiometers. The MCP4023 specifically denotes the potentiometer configuration in a SOT-23-6 package. Other family members include MCP4021 (SOIC/MSOP/DFN), MCP4022 (Rheostat SOT-23-6), and MCP4024 (Rheostat SOT-23-5).

Replacement Considerations

Direct replacements within the same family include MCP4021T-202E/CH for different packaging options. For rheostat configurations, consider MCP4022T-202E/CH. Cross-family comparisons should verify interface compatibility and pinout alignment.