25LC020AT-I/MNY

Overview

The Microchip Technology 25LC020AT-I/MNY is a 2 Kbit (256 x 8-bit) Serial Electrically Erasable Programmable Read-Only Memory (EEPROM). It utilizes an SPI-compatible serial bus for communication, supporting a maximum clock frequency of 10 MHz. The device operates within a supply voltage range of 2.5V to 5.5V and features low-power CMOS technology with standby current as low as 1 µA. It supports page write modes up to 16 bytes and includes self-timed erase and write cycles with a maximum duration of 5 ms.

Feature Summary

• Supports high-speed SPI communication with a maximum clock frequency of 10 MHz
• Includes hardware write protection via the WP pin and software block protection
• Features a hold function to pause serial transmission without resetting the sequence
• Provides high reliability with over one million erase/write cycle endurance

Applications

• Microcontroller data storage in industrial embedded systems
• Configuration parameter retention in consumer electronics
• Calibration data storage in sensor modules
• Device identification and security code storage

Procurement Notes

Verify that the ordering suffix matches the specific package type required, as the base part number covers multiple packages. Confirm the temperature grade 'I' aligns with the application's operational environment limits. Ensure the voltage supply meets the minimum 2.5V requirement for the LC series. Cross-reference the datasheet revision to confirm pinout compatibility if replacing existing components.

Selection Notes

Select this component when a 2 Kbit non-volatile memory solution is needed with SPI interface compatibility. The Industrial temperature range (-40°C to +85°C) suits general-purpose applications. Consider the 16-byte page write capability for efficient data updates. Verify that the system power supply remains above 2.5V to ensure proper operation of the LC variant.

Part Context

This component belongs to the 25LC020A family of serial EEPROMs from Microchip Technology. It shares functional similarities with the 25AA020A but differs in operating voltage requirements. The 'MNY' suffix indicates an 8-lead TDFN package with specific thermal and mechanical characteristics. It is designed for surface-mount assembly in compact electronic designs.

Replacement Considerations

Direct replacements must match the 256x8 organization and SPI interface. Verify voltage compatibility, as some alternatives may require different supply ranges. Check package dimensions for physical fitment in the TDFN-8 footprint. Ensure write protection mechanisms are compatible with the host controller logic.