25LC020AT-E/MNY

Overview

The Microchip Technology 25LC020AT-E/MNY is a 2 Kbit (256 x 8-bit) Serial Electrically Erasable Programmable Read-Only Memory (EEPROM). It operates within a supply voltage range of 2.5 V to 5.5 V and supports a maximum clock frequency of 10 MHz. The device utilizes an SPI-compatible serial bus for communication, featuring sequential read capabilities and a write page mode supporting up to 16 bytes. It includes self-timed erase and write cycles with a maximum duration of 5 ms.

Feature Summary

• Supports block-level write protection allowing configuration to protect none, one-quarter, one-half, or the entire memory array via status register settings.
• Includes hardware write protection through a dedicated pin that inhibits all array and status register writes when asserted low.
• Features a hold input pin that suspends serial communication without resetting the sequence, enabling host interruption handling.

Applications

• Data storage in industrial control systems requiring extended temperature operation
• Configuration parameter retention in automotive electronic modules
• Non-volatile data logging in high-reliability embedded devices

Procurement Notes

Verify the specific suffix 'E' confirms the Automotive temperature grade (-40°C to +125°C) rather than Industrial grade. Confirm the 'MNY' suffix corresponds to the 8-lead 2x3 DFN/TDFN package type as specified in the datasheet. Ensure the 'T' indicates tape and reel packaging if required by assembly equipment. Cross-reference the full part number against the manufacturer's current selection guide to confirm active status.

Selection Notes

Select this component when application requirements demand operation across the full automotive temperature range of -40°C to +125°C. The 2.5 V minimum supply voltage distinguishes it from lower-voltage variants like the 25AA020A series. Choose this part over standard industrial versions only if the extended thermal rating is necessary for the operating environment.

Part Context

This device belongs to the 25XX020A family of 2 Kbit SPI EEPROMs manufactured by Microchip Technology. It shares functional architecture with the 25AA020A but differs in supply voltage specifications and temperature ratings. The family provides non-volatile storage solutions compatible with standard microcontroller SPI interfaces.

Replacement Considerations

Public confirmed substitute part numbers: None identified in source material.