25LC010AT-I/SN

Overview

The Microchip Technology 25LC010AT-I/SN is a 1 Kbit Serial Electrically Erasable Programmable Read-Only Memory (EEPROM) housed in an 8-SOIC package. It features a 128 x 8-bit organization and communicates via a standard SPI-compatible serial bus with a maximum clock frequency of 10 MHz. The device operates within a supply voltage range of 2.5V to 5.5V and supports industrial temperature applications from -40°C to +85°C.

Feature Summary

• Supports sequential read operations and page write modes for up to 16 bytes per cycle.
• Includes built-in hardware write protection mechanisms such as a write enable latch and dedicated write-protect pin.
• Features power-on/off data protection circuitry to prevent inadvertent writes during power transitions.

Applications

• Microcontroller configuration storage
• Calibration parameter persistence
• System status logging

Procurement Notes

Verify the specific suffix 'I/SN' corresponds to the Industrial temperature grade (-40°C to +85°C) and the 8-SOIC package type. Confirm that the 'T' designation indicates tape-and-reel packaging if required by automated assembly processes. Ensure compatibility with the host system's SPI voltage levels, as this variant requires a minimum supply voltage of 2.5V.

Selection Notes

Select this component when a low-pin-count non-volatile memory solution is needed for small data sets. It is suitable for designs requiring hardware-level write protection and simple SPI interface integration without complex controller overhead. Consider the 16-byte page size limitation when designing write algorithms to ensure data integrity across page boundaries.

Part Context

This part belongs to the 25LC010A family of 1 Kbit SPI EEPROMs manufactured by Microchip Technology. It shares functional similarities with the 25AA010A but differs in its minimum operating voltage requirements. The device is designed for general-purpose data storage in embedded systems where space and power consumption are critical constraints.

Replacement Considerations

Direct replacements include other 25LC010 variants with compatible packages and temperature ratings, such as 25LC010AT-I/MS or 25LC010AT-I/MNY. Verify pinout compatibility and voltage specifications before substituting.