SHENZHEN GANGXINLI ELECTRONICS CO.,LTD
Professional Electronic Component Distributor!
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SHENZHEN GANGXINLI ELECTRONICS CO.,LTD
Professional Electronic Component Distributor!
2026/7/27
The 25AA02E48T-I/OT is a compact SPI Serial EEPROM with a pre-programmed globally unique EUI-48™ identifier. In addition to providing non-volatile data storage, it eliminates the need for manufacturers to generate or manage unique MAC addresses during production, simplifying product development while ensuring reliable network identification. It is widely used in Ethernet-enabled embedded systems, industrial controllers, IoT devices and communication equipment.
Category: Integrated Circuits (ICs), Memory, Memory
Memory Interface: SPI
Mfr: Microchip Technology
Clock Frequency: 10 MHz
Packaging: Tape & Reel (TR), Cut Tape (CT), Digi-Reel®
Write Cycle Time - Word, Page: 5ms
Part Status: Active
Voltage - Supply: 1.8V ~ 5.5V
DigiKey Programmable: Not Verified
Operating Temperature: -40°C ~ 85°C (TA)
Memory Type: Non-Volatile
Mounting Type: Surface Mount
Memory Format: EEPROM
Package / Case: SOT-23-6
Technology: EEPROM
Supplier Device Package: SOT-23-6
Memory Size: 2Kbit
Base Product Number: 25AA02E48
Memory Organization: 256 x 8
Factory-Programmed Unique EUI-48™ Address: The device contains a permanently programmed IEEE-compliant EUI-48™ node identity, ensuring every device has a globally unique MAC address. This eliminates address duplication risks and simplifies Ethernet product manufacturing, especially for IoT gateways, industrial controllers and communication modules.
Integrated SPI EEPROM Storage: Besides the built-in MAC address, the device also provides 2-Kbit (256 × 8) EEPROM storage that can be used to save configuration parameters, calibration data, serial numbers and user settings. The non-volatile memory retains data even when power is removed, improving system flexibility and reliability.
Wide Operating Voltage Range: Supporting a supply voltage from 1.8V to 5.5V, the 25AA02E48T-I/OT is compatible with both low-voltage and standard logic systems. This flexibility allows the device to be integrated into battery-powered products, industrial controllers and various embedded platforms without additional level conversion circuitry.
High-Speed SPI Communication: The EEPROM communicates through a standard SPI interface operating at frequencies up to 10MHz. The SPI interface enables fast data transfer, simple hardware implementation and compatibility with most microcontrollers, DSPs and embedded processors.
Compact Package and Industrial Reliability: The device is available in a compact SOT-23-6 package and supports an industrial operating temperature range of -40°C to +85°C. Its small footprint and reliable operation make it suitable for space-constrained embedded products and long-life industrial applications.
Ethernet Network Equipment: The device is widely used in Ethernet switches, routers and industrial gateways to provide unique MAC addresses while storing network configuration information.
Industrial Automation: Industrial controllers and PLCs use the EEPROM for equipment identification, parameter storage and Ethernet communication management.
Internet of Things (IoT): IoT gateways, wireless modules and smart sensors utilize the factory-programmed MAC address for secure network access while storing configuration and calibration data locally.
Embedded Systems: Embedded development platforms and microcontroller-based products use the EEPROM for boot configuration, user settings and serial number management.
Smart Home and Consumer Electronics: Smart home controllers and connected consumer devices require globally unique MAC addresses for network communication while utilizing EEPROM storage for product configuration.