MCP4023T-503E/CH

Overview

The MCP4023T-503E/CH is a nonvolatile, 6-bit digital potentiometer manufactured by Microchip Technology. It features a 50 kΩ total resistance (RAB) with 64 taps and utilizes WiperLock™ technology to store the wiper setting in EEPROM. The device operates on a 2.7V to 5.5V supply and uses a simple Up/Down (U/D) serial interface for control. Digital inputs are high-voltage tolerant up to 12.5V. It is housed in a 6-pin SOT-23 package and supports an operating temperature range of –40°C to +125°C.

Feature Summary

• Nonvolatile memory with WiperLock™ technology for power-on recall of settings
• High-voltage tolerant digital inputs (up to 12.5V)
• Simple Up/Down (U/D) serial control interface
• Low static current operation (1 µA max)

Applications

• Audio volume control
• Gain adjustment in instrumentation circuits
• Variable voltage reference generation

Procurement Notes

Verify the specific suffix 'CH' against the manufacturer's official documentation to confirm the exact tape-and-reel packaging quantity and handling specifications. Ensure the component meets RoHS compliance requirements for the intended assembly process.

Selection Notes

Select this part when a single-channel digital potentiometer with persistent memory is required. The 50 kΩ resistance value suits moderate impedance applications. The U/D interface simplifies control logic compared to I2C or SPI protocols, provided the host can toggle signals at frequencies up to 1 MHz.

Part Context

This component belongs to the MCP4021/2/3/4 family of low-cost nonvolatile digital potentiometers. The MCP4023 variant specifically designates the Potentiometer configuration within the SOT-23-6 package form factor, distinguishing it from rheostat configurations or other package types like SOIC or MSOP.

Replacement Considerations

Direct replacements include MCP4021T-503E/CH and MCP4022T-503E/CH, which share identical electrical characteristics and pinouts but may differ in internal terminal configurations (Potentiometer vs. Rheostat). Verify functional equivalence before substitution.