25LC512-E/MF

Overview

The Microchip Technology 25LC512-E/MF is a 512 Kbit (64K x 8) serial EEPROM utilizing an SPI-compatible interface. It operates within a voltage range of 2.5V to 5.5V and supports a maximum clock frequency of 20 MHz. The device features a 128-byte page size, 1 million erase/write cycle endurance, and data retention exceeding 200 years. It includes sector write protection and self-timed erase/write cycles. The component is housed in an 8-lead DFN-S package and is qualified for extended industrial temperature ranges from -40°C to +125°C.

Feature Summary

• Supports byte, page, sector, and chip erase operations via SPI bus
• Includes hardware write protection with block protection capabilities
• Features deep power-down mode for minimal standby current consumption
• Provides electronic signature identification and hold pin functionality

Applications

• Microcontroller system data storage
• Configuration parameter retention
• Calibration value archiving
• Embedded firmware updates

Procurement Notes

Verify the specific 'E' suffix indicates extended temperature operation (-40°C to +125°C). Confirm the 'MF' designation corresponds to the 8-lead DFN-S package type. Ensure compatibility with the host system's SPI voltage levels and clock speed requirements before finalizing procurement.

Selection Notes

Select this component when high-density non-volatile storage is required alongside sector-level erasure capabilities typically found in flash memory. The extended temperature rating makes it suitable for harsh environments. Verify that the 128-byte page size aligns with the application's write granularity needs.

Part Context

This part belongs to the 25LC512 family of serial EEPROMs manufactured by Microchip Technology. It shares architectural similarities with other devices in the series but is distinguished by its specific package configuration and extended temperature operating range. The device integrates standard SPI protocols with additional security features like block protection.

Replacement Considerations

Cross-reference with 25LC512-I/MF for industrial temperature variants or 25LC512-E/SN for SOIC package alternatives. Ensure substitute parts maintain identical pinouts and electrical characteristics.