25LC020AT-I/MC

Overview

The Microchip Technology 25LC020AT-I/MC is a 2 Kbit (256 x 8-bit) Serial Electrically Erasable Programmable Read-Only Memory (EEPROM). It operates via a SPI-compatible serial bus with a maximum clock frequency of 10 MHz. The device utilizes low-power CMOS technology, featuring a maximum write current of 5 mA at 5.5V and a standby current of 5 µA. It supports page write modes of up to 16 bytes and includes self-timed erase and write cycles with a maximum duration of 5 ms.

Feature Summary

• Supports sequential read operations and page write modes for efficient data access
• Includes built-in hardware write protection mechanisms such as power-on/off data protection and a dedicated write-protect pin
• Features a hold input that allows suspension of serial communication without resetting the sequence

Applications

• Storage of device unique identification numbers and production batch codes
• Retention of calibration parameters and user configuration settings
• Logging of operational status or fault records in embedded systems

Procurement Notes

Verify the specific suffix 'MC' corresponds to the DFN-8 package type and confirm the 'I' designation indicates the industrial temperature range of -40°C to +85°C. Ensure the ordering information matches the required voltage specifications for the LC series before procurement.

Selection Notes

Select this component when an SPI interface is preferred over I2C for improved noise immunity and simpler protocol handling. It is suitable for applications requiring reliable storage of small amounts of non-volatile data within standard industrial operating conditions.

Part Context

This part belongs to the 25XX020A family of 2 Kbit SPI EEPROMs from Microchip Technology. It shares identical memory arrays and instruction sets with the 25AA020A variant, differing primarily in its minimum operating voltage requirements and intended application environments.

Replacement Considerations

Direct functional substitutes within the same package include other variants from the 25LC020A family, such as those in SOIC or MSOP packages, provided the voltage and temperature ratings align with system requirements.