25AA02E48T-I/OT Microchip Integrated Circuit (SOT23 (6-Pin)) In Stock
25AA02E48T-I/OT is a 2 Kbit SPI serial EEPROM with a factory-programmed 48-bit EUI-48 MAC address node identity, operating from 1.8 V to 5.5 V at up to 10 MHz clock frequency. It offers 1,000,000 write/erase cycles, 200-year data retention, and is housed in a tiny 6-pin SOT-23 package. In stock worldwide with fast international shipping.
- Manufacturer
- Microchip
- Package
- SOT23 (6-Pin)
- Pin Count
- 6
- Lifecycle
- ACTIVE
- Datasheet
- 25AA02E48T-I/OT Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $0.3180(MOQ 1)
- Temp Range
- -40.0°C to 85.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of 25AA02E48T-I/OT?
- Factory-programmed 48-bit EUI-48 MAC address eliminates the need for manual MAC provisioning in networked devices
- Wide supply voltage of 1.8 V to 5.5 V and up to 10 MHz SPI clock support both 3.3 V and 5 V microcontroller interfaces
- 1,000,000 guaranteed write/erase endurance cycles with 200-year data retention ensure long field life
- Ultra-compact 6-pin SOT-23 package allows integration onto crowded IoT and Ethernet node PCBs
What is 25AA02E48T-I/OT used for?
25AA02E48T-I/OT is purpose-built for Ethernet and Wi-Fi network interface cards, IoT gateway modules, and embedded controllers that require a unique hardware MAC address stored in non-volatile memory. The factory-programmed EUI-48 value simplifies firmware provisioning workflows, eliminating per-unit MAC flashing steps in production. It is also used in accessory authentication dongles and industrial fieldbus adapters where a guaranteed unique node identity is mandated by network protocols.
What are the specifications of 25AA02E48T-I/OT?
| Pbfree Code | Yes |
| Manufacturer Package Code | SOT-23-6 |
| Factory Lead Time | 6Weeks |
| YTEOL | 8 |
| Additional Feature | ALSO OPERATES AT 2.5V TO 5.5V @5MHZ AND 1.8V TO 2.5V @3MHZ |
| Clock Frequency-Max (fCLK) | 10MHz |
| Data Retention Time-Min | 200 |
| Endurance | 1000000 Write/Erase Cycles |
| JESD-30 Code | R-PDSO-G6 |
| JESD-609 Code | e3 |
| Memory Density | 2048bit |
| Memory IC Type | EEPROM |
| Memory Width | 8 |
| Number of Functions | 1 |
| Number of Ports | 1 |
| Number of Words | 256words |
| Number of Words Code | 256 |
| Operating Mode | SYNCHRONOUS |
| Organization | 256X8 |
| Output Characteristics | 3-STATE |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | TSOP6,.11,37 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE, LOW PROFILE, SHRINK PITCH |
| Parallel/Serial | SERIAL |
| Peak Reflow Temperature (Cel) | 260 |
| Programming Voltage | 5V |
| Qualification Status | Not Qualified |
| Screening Level | TS 16949 |
| Serial Bus Type | SPI |
| Standby Current-Max | 0.000001A |
| Supply Current-Max | 0.005mA |
| Supply Voltage-Max (Vsup) | 5.5V |
| Supply Voltage-Min (Vsup) | 4.5V |
| Supply Voltage-Nom (Vsup) | 5V |
| Surface Mount | YES |
| Technology | CMOS |
| Temperature Grade | INDUSTRIAL |
| Terminal Finish | Matte Tin (Sn) |
| Terminal Form | GULL WING |
| Terminal Pitch | 0.95mm |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | 40 |
| Write Cycle Time-Max (tWC) | 5ms |
| Write Protection | HARDWARE |
| Package | SOT23 (6-Pin) |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 1 |
| ECCN | EAR99 |
| HTS Code | 8542.32.00.51 |
| Country of Origin | Thailand |
Where can I find the 25AA02E48T-I/OT datasheet?
25AA02E48T-I/OT Datasheet DownloadOfficial datasheet from Microchip
What are equivalent replacements for 25AA02E48T-I/OT?
Compatible alternatives and drop-in replacements for 25AA02E48T-I/OT:
suggested
suggested
suggested
suggested
Frequently Asked Questions
How does the factory-programmed EUI-48 address in 25AA02E48T-I/OT reduce production complexity for Ethernet-enabled products?
The 25AA02E48T-I/OT ships with a unique 48-bit EUI-48 MAC address burned at the factory into a write-protected region of the 2 Kbit EEPROM, removing the need for a MAC programming station on the assembly line. During firmware initialization the host MCU reads the address over the 4-wire SPI bus at up to 10 MHz and loads it into the Ethernet MAC controller, saving programming time per unit in high-volume production runs. This eliminates duplicate MAC address errors that occur during manual programming.
What SPI clock rates and supply voltages does 25AA02E48T-I/OT support, and how does this affect interface design?
25AA02E48T-I/OT supports SPI clock frequencies up to 10 MHz at 2.5 V to 5.5 V supply and up to 3 MHz at 1.8 V to 2.5 V supply, making it directly compatible with 3.3 V and 5 V microcontrollers without level-shifting in most cases. The standard 4-wire SPI interface (CS, SCK, SI, SO) allows connection to virtually any MCU peripheral or bit-bang GPIO, and the 6-pin SOT-23 package keeps routing minimal.
What is the write endurance and data retention specification of 25AA02E48T-I/OT, and how does this compare to typical EEPROM requirements?
25AA02E48T-I/OT guarantees 1,000,000 write/erase cycles per byte and a minimum data retention of 200 years at room temperature. Most industrial and consumer applications require fewer than 100,000 write cycles over the product lifetime, so this device provides a substantial margin. The 200-year retention at 25 °C ensures that configuration data and MAC address remain intact across the entire 10 to 20 year operational life typical of embedded systems.
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| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $0.3180 | $0.32 |
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