25LC512T-M/SN

Overview

The Microchip Technology 25LC512T-M/SN is a 512 Kbit (64K x 8) serial electrically erasable programmable read-only memory (EEPROM). It utilizes an SPI bus interface with a maximum clock frequency of 20 MHz. The device operates within a supply voltage range of 2.5 V to 5.5 V and is housed in an 8-SOIC package. Designed for automotive applications, it meets AEC-Q100 qualification standards and supports surface-mount installation.

Feature Summary

• Automotive-grade reliability compliant with AEC-Q100 standards
• High-speed SPI serial interface supporting up to 20 MHz clock rates
• Wide operating voltage range from 2.5 V to 5.5 V
• Non-volatile data retention suitable for long-term storage

Applications

• Automotive electronic control units requiring durable non-volatile storage
• Industrial systems needing reliable parameter retention under harsh conditions
• Consumer electronics utilizing SPI-based microcontroller architectures

Procurement Notes

Verify the specific suffix 'M' indicates military or extended temperature grade requirements against your design specifications. Confirm that the SOIC-8 package dimensions match your PCB footprint constraints. Ensure the SPI interface polarity and timing parameters align with your host controller's capabilities before finalizing procurement.

Selection Notes

Select this component when automotive qualification (AEC-Q100) is mandatory for the application. Choose this part over standard commercial grades if operation in extreme temperatures or high-reliability environments is required. Verify that the 20 MHz SPI speed meets the system's throughput needs compared to slower alternatives.

Part Context

This part belongs to the 25LC512 family of serial EEPROMs from Microchip Technology. It shares architectural similarities with the 25LC512-E/SN but differs in qualification and potentially temperature ranges due to the 'M' suffix. It serves as a non-volatile memory solution for embedded systems requiring robust data storage.

Replacement Considerations

The 25LC512T-E/SN is listed as a direct substitute by distributors. Verify if the commercial grade of the E/SN variant meets the environmental and reliability requirements originally specified for the M/SN version.