MCP4241T-502E/ST

Digital Potentiometers Overview

The MCP4241T-502E/ST is a dual-channel, non-volatile digital potentiometer from Microchip Technology. It features two independent 7-bit wiper controls with 129 resistance steps and a nominal total resistance of 5 kΩ. The device utilizes an SPI serial interface for communication and includes WiperLock™ technology to secure calibration settings in internal EEPROM. It operates within a voltage range of 2.7V to 5.5V and supports high-voltage tolerant digital inputs up to 12.5V. The component is housed in a TSSOP-14 package.

Digital Potentiometers Feature Summary

• Dual Potentiometer Configuration: Two independent channels (P0 and P1) with 7-bit resolution (129 taps).
• Non-Volatile Memory: Internal EEPROM retains wiper settings after power loss; supports WiperLock™ security.
• SPI Interface: Compatible with Mode 0,0 and Mode 1,1 at frequencies up to 10 MHz.
• High Voltage Inputs: Digital input pins tolerate voltages up to 12.5V regardless of VDD level.

Digital Potentiometers Applications

• Audio volume control and tone adjustment circuits.
• Programmable gain amplifiers and sensor signal conditioning.
• Calibration of reference voltages and bias currents.
• Variable resistor replacement in industrial instrumentation.

Digital Potentiometers Procurement Notes

Verify the 'T' suffix indicates tape-and-reel packaging when sourcing. Confirm the '502' code corresponds to the 5 kΩ resistance value. Ensure the '/ST' designation matches the required TSSOP-14 package type for PCB layout compatibility.

Digital Potentiometers Selection Notes

Select this model for applications requiring dual-channel analog resistance control with persistent state retention. The 5 kΩ resistance value suits moderate current loads. Consider the MCP4261 if higher 8-bit resolution is needed, or the MCP4231 if volatile memory suffices for lower cost.

Digital Potentiometers Part Context

This part belongs to the MCP424X family of single/dual SPI digital potentiometers with non-volatile memory. The 'T' denotes reel packaging, '502' specifies 5 kΩ resistance, and 'ST' identifies the TSSOP-14 package. It shares core architecture with the MCP4141 but provides two isolated resistor networks.

Digital Potentiometers Replacement Considerations

The MCP4241-502E/ST is functionally equivalent to the tube-packaged MCP4241-502E/ST. For pin-compatible upgrades, consider the MCP4261-502E/ST for 8-bit resolution. Volatile alternatives like the MCP4231-502E/ST lack EEPROM storage.