MCP4361T-104E/ST

Digital Potentiometers Overview

The MCP4361T-104E/ST is a quad digital potentiometer IC featuring four independent 8-bit resistor networks with non-volatile memory. It provides a total resistance (R_AB) of 100 kΩ and offers 257 taps for precise adjustment. The device operates on a supply voltage range of 2.7V to 5.5V and utilizes an SPI serial interface supporting up to 10 MHz. Key features include WiperLock™ technology for automatic recall of wiper settings, high-voltage tolerant digital inputs up to 12.5V, and a terminal disconnect feature via the TCON register. It is housed in a 20-TSSOP package.

Digital Potentiometers Feature Summary

• Quad configuration with four independent 8-bit digital potentiometers
• Non-volatile memory with WiperLock™ technology for power-up state retention
• High-voltage tolerant digital inputs (up to 12.5V) allowing split-rail applications
• SPI interface with 10 MHz clock speed and hardware/software write protect

Digital Potentiometers Applications

• Programmable gain amplifiers
• Variable voltage references
• Audio volume control
• Sensor biasing adjustment

Digital Potentiometers Procurement Notes

Verify the 'T' suffix indicates tape-and-reel packaging and the 'ST' suffix denotes the 20-TSSOP package. Confirm the '104' code corresponds to the 100 kΩ resistance value. Ensure the 'E' suffix meets RoHS compliance standards. Check for specific manufacturing lot dates if long-term storage stability is required.

Digital Potentiometers Selection Notes

Select this model when a quad channel configuration is required compared to single-channel alternatives like the MCP4161. Choose the 100 kΩ variant over 5 kΩ or 10 kΩ options based on impedance matching requirements. The non-volatile memory distinguishes it from volatile RAM-based devices like the MCP4331. Ensure the system supports SPI Mode 0,0 or 1,1 communication protocols.

Digital Potentiometers Part Context

This component belongs to the MCP434X/436X family of quad SPI digital potentiometers. The '61' designation specifically identifies the 8-bit resolution with non-volatile EEPROM memory. It serves as a higher-density alternative to single-channel devices and complements the I2C-based MCP4461 series within Microchip's portfolio.

Digital Potentiometers Replacement Considerations

The MCP4361-104E/ML is a pin-compatible replacement offering the same electrical specifications but packaged in a 20-QFN format instead of TSSOP.