25LC512T-I/MF

Overview

The Microchip Technology 25LC512T-I/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 clock frequencies up to 20 MHz. The device features a 128-byte page size, 1 million erase/write cycle endurance, and data retention exceeding 200 years. It is housed in an 8-lead DFN-S package and rated for industrial temperatures from -40°C to +85°C.

Feature Summary

• Supports byte and page-level write operations with self-timed erase cycles
• Includes hardware write protection via WP pin and software block protection
• Features deep power-down mode for minimal standby current consumption
• Provides electronic signature identification and hold functionality

Applications

• Microcontroller system configuration storage
• Calibration data and parameter logging
• Embedded firmware version tracking
• Industrial control system memory

Procurement Notes

Verify the suffix 'I' confirms the industrial temperature range (-40°C to +85°C). Confirm 'MF' indicates the 8-lead DFN-S package type. Ensure the 'T' prefix matches the required reel packaging format. Cross-reference the datasheet revision DS20002065D for specific electrical characteristics.

Selection Notes

Select this component when non-volatile storage is required with low pin count and simple serial interfacing. It is suitable for applications needing moderate density without complex sector management. Consider the DFN-S package for space-constrained surface-mount designs requiring robust thermal performance.

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 differs in package options and temperature ratings. The family is designed for general-purpose data storage in embedded systems.

Replacement Considerations

Check for compatible parts such as 25LC512-E/MF for extended temperature ranges or 25LC512-P for PDIP packages. Verify pinout compatibility and voltage specifications before substitution.

FAQ

How does the HOLD pin function during communication?

The HOLD pin suspends serial communication without resetting the sequence. It must be pulled low while SCK is low to pause, and high to resume.

What is the maximum page write size?

The device supports page writes of up to 128 bytes. Writing across a page boundary causes data to wrap around to the start of the current page.