MCP4341T-104E/ML

Digital Potentiometers Overview

The MCP4341T-104E/ML is a quad-channel digital potentiometer IC featuring non-volatile memory and WiperLock™ technology. It provides four independent resistor networks with 129 taps (7-bit resolution) and an end-to-end resistance of 100 kΩ. The device operates on a supply voltage ranging from 2.7V to 5.5V, with high-voltage tolerant digital inputs supporting up to 12.5V. It utilizes a 10 MHz SPI serial interface for control and includes features such as terminal disconnect via the TCON register, hardware write protection, and brown-out reset.

Digital Potentiometers Feature Summary

• Quad Resistor Network: Four independent potentiometers or rheostats with 129 taps each.
• Non-Volatile Memory: Retains wiper settings using WiperLock™ technology upon power loss.
• High-Voltage Inputs: Digital input pins tolerate voltages up to 12.5V.
• SPI Interface: Supports 10 MHz operation in modes 0,0 and 1,1.

Digital Potentiometers Applications

• Split rail applications requiring isolated analog and digital supplies.
• Systems needing persistent calibration data without external storage.
• Audio or signal processing circuits requiring digitally adjustable gain or attenuation.

Digital Potentiometers Procurement Notes

Verify the specific suffix 'ML' corresponds to the 20-pin QFN package when sourcing. Confirm that the 'T' designation indicates reel packaging if bulk quantities are required. Ensure the design supports the 2.7V minimum operating voltage for full analog specification compliance.

Digital Potentiometers Selection Notes

Select this model over volatile variants (MCP433X) when power-down retention is critical. Choose the 100 kΩ value (-104) only if the circuit impedance requirements match; lower resistance options like 5 kΩ offer higher bandwidth. Verify that the 12.5V input tolerance aligns with the system's logic levels.

Digital Potentiometers Part Context

This component belongs to the MCP434X family of quad digital potentiometers. It shares architectural similarities with the MCP436X series but differs in resolution, offering 7-bit (129 taps) compared to the 8-bit (257 taps) found in the 6X series. Both families utilize non-volatile memory and WiperLock™ technology.

Digital Potentiometers Replacement Considerations

The MCP4341T-104E/ST serves as a pin-compatible replacement in the TSSOP-14 package. For applications requiring higher resolution, the MCP4361T-104E/ML offers identical functionality with 8-bit resolution.