25AA02E48-I/SN

Memory IC Overview

The Microchip Technology 25AA02E48-I/SN is a 2 Kbit Serial Electrically Erasable Programmable Read-Only Memory (EEPROM) utilizing a Serial Peripheral Interface (SPI). It features a 256 x 8-bit organization with a maximum clock frequency of 10 MHz. The device operates within a supply voltage range of 1.8 V to 5.5 V and supports industrial temperature ranges from -40°C to +85°C. It includes a preprogrammed globally unique 48-bit EUI-48 node address stored in the upper quarter of the array, which is hardware write-protected by default.

Memory IC Feature Summary

• Preprogrammed with a globally unique 48-bit IEEE EUI-48 node address for device identification
• 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 settings
• Features power-on/off data protection circuitry and a write enable latch mechanism

Memory IC Applications

• Embedded systems requiring unique device identity assignment
• Industrial control networks using SPI bus protocols
• IoT devices needing persistent configuration storage with node addressing

Memory IC Procurement Notes

Verify that the ordering suffix matches the required package type and temperature grade. Confirm the specific revision level against the manufacturer's latest documentation to ensure compatibility with existing designs. Check for any recent product change notices affecting electrical characteristics or pinouts before finalizing procurement specifications.

Memory IC Selection Notes

Select this component when an SPI interface is preferred over I2C for higher speed operations up to 10 MHz. Choose this part if the application requires a factory-assigned unique identifier for network addressing without additional configuration steps. Ensure the system design accommodates the 8-lead SOIC package dimensions and the specific voltage requirements of the target microcontroller.

Memory IC Part Context

This component belongs to the 25AA02EXX family of 2 Kbit SPI EEPROMs manufactured by Microchip Technology. It shares functional similarities with the 25AA02E64 model but differs in its preprogrammed address length, offering a 48-bit EUI-48 identifier instead of a 64-bit EUI-64 identifier. Both variants utilize the same physical package options and core memory architecture.

Memory IC Replacement Considerations

Direct substitutes include the 25AA02E64-I/SN, which offers identical electrical performance but provides a 64-bit EUI-64 address. Other compatible parts within the 25AA series may require verification of pinout compatibility and voltage levels.