MR25H40VDF

Memory IC Overview

The MR25H40VDF is a 4Mbit magnetoresistive random access memory (MRAM) device organized as 512K x 8 bits. It operates with a nominal 3.3V power supply and features a serial peripheral interface (SPI) supporting clock rates up to 40 MHz. The component utilizes an 8-pin DFN Small Flag package with an exposed pad for thermal management. It provides non-volatile data storage with high endurance capabilities.

Memory IC Feature Summary

• Unlimited write endurance eliminates wear-out concerns associated with traditional flash memory technologies
• Non-volatile architecture retains stored data without continuous power supply
• Fast SPI interface enables efficient serial data communication with host controllers

Memory IC Applications

• Industrial control systems requiring reliable data logging
• Automotive electronics meeting AEC-Q100 standards
• Consumer devices needing frequent parameter updates

Memory IC Procurement Notes

Verify the specific suffix VDF confirms the 8-DFN Small Flag package and 40 MHz speed grade. Confirm temperature range availability matches application requirements, as industrial and extended options exist within the MR25H40 family. Ensure ordering quantities align with manufacturer reel specifications.

Memory IC Selection Notes

Select this part when replacing serial EEPROM or Flash where write endurance is critical. Compare against MR25H40MDF if higher speed interfaces are not required. Evaluate thermal performance needs due to the exposed pad design in the DFN package. Consider voltage compatibility with the 3.3V system rail.

Memory IC Part Context

This component belongs to the Everspin MR2xH40 family of 4Mbit MRAM devices. These chips offer direct replacement capabilities for legacy serial EEPROM and Flash memories while providing superior durability. The family supports various packaging and temperature grades to suit diverse electronic environments.

Memory IC Replacement Considerations

Direct replacements include other MR25H40 variants such as MR25H40MDF, provided pinout and electrical characteristics match the specific design constraints.