25AA02E48T-I/SN

Memory IC Overview

The Microchip Technology 25AA02E48T-I/SN is a 2 Kbit Serial Electrically Erasable Programmable Read-Only Memory (EEPROM) accessed via a Serial Peripheral Interface (SPI). It features a 256 x 8-bit organization and supports a maximum clock frequency of 10 MHz. The device operates within a supply voltage range of 1.8V to 5.5V and includes a preprogrammed, globally unique 48-bit EUI-48™ node address in the upper quarter of the array. It utilizes an 8-lead SOIC package.

Memory IC Feature Summary

• Factory-programmed with a globally unique 48-bit IEEE EUI-48™ node address for device identification
• Integrated hardware write protection mechanisms including block protection and power-on/off data protection
• Supports sequential read operations and page write modes for efficient data handling
• Includes a hold pin to pause serial communication without resetting the internal sequence

Memory IC Applications

• System identification and authentication in embedded networks
• Device tracking and inventory management using unique identifiers
• Configuration storage in industrial control systems requiring non-volatile memory
• Secure element applications utilizing factory-set identity codes

Memory IC Procurement Notes

Verify that the ordering suffix 'I' corresponds to the Industrial temperature range (-40°C to +85°C) and 'SN' indicates the 8-lead SOIC package. Confirm the 'T' suffix denotes tape and reel packaging if required by automated assembly processes. Ensure the specific revision level matches the design requirements, as manufacturing changes may occur over time.

Memory IC Selection Notes

Select this component when a unique hardware identifier is required alongside standard EEPROM functionality. The 25AA02E48 variant provides a 48-bit address suitable for EUI-48 standards. For applications requiring direct 64-bit addressing without encapsulation, consider the 25AA02E64 model instead. Verify SPI bus compatibility and voltage levels before integration.

Memory IC Part Context

This part belongs to the 25AA02EXX family of 2 Kbit SPI Serial EEPROMs manufactured by Microchip Technology. The family includes variants with different node addresses, such as the 25AA02E64 which features a 64-bit EUI-64™ address. These devices are designed for low-power applications and offer high reliability with significant endurance ratings.

Memory IC Replacement Considerations

The 25AA02E64T-I/SN serves as a functional substitute offering a 64-bit node address instead of 48-bit. Other 25AA02 series EEPROMs may replace it if the unique address feature is not required, provided interface and voltage specifications align.