24AA025E48-I/SN Microchip Integrated Circuit (Small Outline Packages) In Stock
24AA025E48-I/SN is a 2 Kbit I2C serial EEPROM from Microchip with a factory-programmed unique 48-bit EUI MAC address for network identification. Operates from 1.7 V to 5.5 V at up to 400 kHz in an 8-pin SOIC package. Available from stock worldwide with fast shipping.
- Manufacturer
- Microchip
- Package
- Small Outline Packages
- Pin Count
- 8
- Lifecycle
- ACTIVE
- Datasheet
- 24AA025E48-I/SN Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $0.3250(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 24AA025E48-I/SN?
- Factory-programmed unique 48-bit EUI MAC address eliminates manual provisioning and ensures globally unique device identity
- 1.7 V to 5.5 V operating range supports both ultra-low-voltage MCU designs and 5 V legacy systems
- 1,000,000 write/erase cycle endurance with 200-year data retention ensures long-term reliability in deployed embedded systems
What is 24AA025E48-I/SN used for?
24AA025E48-I/SN is specifically designed for IoT nodes, Ethernet-connected devices, and wireless modules that require a globally unique MAC address without factory provisioning overhead. Its pre-programmed EUI-48 identifier integrates directly into network stack initialization routines for LAN, Wi-Fi, and Bluetooth applications. The standard I2C interface and SOIC-8 footprint allow easy integration alongside microcontrollers in space-constrained designs.
What are the specifications of 24AA025E48-I/SN?
| Pbfree Code | Yes |
| Manufacturer Package Code | SOIC-8 |
| Factory Lead Time | 31Weeks |
| YTEOL | 8 |
| Additional Feature | ALSO OPERATES AT 1.7V TO 2.5V @0.1MHZ |
| Clock Frequency-Max (fCLK) | 0.4MHz |
| Data Retention Time-Min | 200 |
| Endurance | 1000000 Write/Erase Cycles |
| I2C Control Byte | 1010DDDR |
| JESD-30 Code | R-PDSO-G8 |
| 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 | OPEN-DRAIN |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | SOP8,.23 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE |
| Parallel/Serial | SERIAL |
| Peak Reflow Temperature (Cel) | 260 |
| Programming Voltage | 5V |
| Qualification Status | Not Qualified |
| Screening Level | TS 16949 |
| Serial Bus Type | I2C |
| Standby Current-Max | 0.000001A |
| Supply Current-Max | 0.003mA |
| Supply Voltage-Max (Vsup) | 5.5V |
| Supply Voltage-Min (Vsup) | 2.5V |
| Supply Voltage-Nom (Vsup) | 5V |
| Surface Mount | YES |
| Technology | CMOS |
| Temperature Grade | INDUSTRIAL |
| Terminal Finish | Matte Tin (Sn) |
| Terminal Form | GULL WING |
| Terminal Pitch | 1.27mm |
| Terminal Position | DUAL |
| Write Cycle Time-Max (tWC) | 5ms |
| Write Protection | HARDWARE |
| Package | Small Outline Packages |
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 24AA025E48-I/SN datasheet?
24AA025E48-I/SN Datasheet DownloadOfficial datasheet from Microchip
What are equivalent replacements for 24AA025E48-I/SN?
Compatible alternatives and drop-in replacements for 24AA025E48-I/SN:
Frequently Asked Questions
How is the factory-programmed 48-bit EUI MAC address in 24AA025E48-I/SN used during Ethernet initialization?
At power-up, the host MCU reads the 6-byte EUI-48 address stored in the protected upper half of the 24AA025E48-I/SN memory over the 400 kHz I2C bus using the standard 1010xxx control byte. This value is then written directly into the MAC controller's address register, providing a globally unique Organizationally Unique Identifier (OUI) assigned by Microchip. This eliminates manual MAC programming during board manufacturing, reducing both production time and the risk of address collisions.
Can the user-writable memory in 24AA025E48-I/SN store application configuration data alongside the MAC address?
Yes. The 24AA025E48-I/SN provides 2 Kbits (256 bytes) total, with the lower 128 bytes available for user read/write storage and the upper 128 bytes containing the factory-locked EUI-48 MAC address. The user area supports up to 1,000,000 write cycles and 200 years of data retention, making it suitable for storing network credentials, device serial numbers, or calibration data in addition to the identity function.
What is the minimum supply voltage for 24AA025E48-I/SN, and does it affect I2C clock speed?
The 24AA025E48-I/SN operates down to 1.7 V, but at voltages between 1.7 V and 2.5 V the maximum I2C clock is limited to 100 kHz rather than the full 400 kHz Fast-mode speed available above 2.5 V. Designs running a 1.8 V MCU rail should account for this clock restriction in their I2C initialization code to ensure reliable EEPROM communication at startup.
How does 24AA025E48-I/SN compare to using a software-generated MAC address in a production IoT device?
A software-generated MAC address risks duplication across thousands of units if the random seed or counter mechanism is flawed, which can cause network collisions and ARP conflicts. The 24AA025E48-I/SN guarantees uniqueness through a Microchip-assigned OUI block, and the address is immutable in hardware, preventing accidental overwrite. This approach also simplifies regulatory compliance since the device can be registered with a verified unique identity from the factory.
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More from Microchip
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $0.3618 | $0.36 |
| 25+ | $0.3565 | $8.91 |
| 1000+ | $0.3560 | $356.00 |
| 4000+ | $0.3421 | $1368.44 |
| 8000+ | $0.3333 | $2666.64 |
| 16000+ | $0.3250 | $5200.00 |
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