24AA025E64T-I/OT Microchip Integrated Circuit (SOT23 (6-Pin)) In Stock
Microchip 24AA025E64T-I/OT is a 2 kbit I2C serial EEPROM with pre-programmed 64-bit EUI node identity, operating from 1.7 V to 5.5 V in a tiny SOT-23-6 package, rated for 1,000,000 write/erase cycles and 200-year data retention. Ideal for network device identification and IoT asset tracking in space-constrained designs. Available in stock with worldwide shipping.
- Manufacturer
- Microchip
- Package
- SOT23 (6-Pin)
- Pin Count
- 6
- Lifecycle
- ACTIVE
- Datasheet
- 24AA025E64T-I/OT Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $0.1805(MOQ 1)
- Temp Range
- -40.0°C to 85.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Factory-programmed unique 64-bit EUI-64 node identity eliminates manual MAC address provisioning in Ethernet and IoT device manufacturing
- Ultra-wide 1.7 V to 5.5 V operating range supports direct connection to 1.8 V, 3.3 V, and 5 V I2C bus systems
- 1,000,000 write/erase endurance cycles with 200-year data retention ensures long-term reliability in industrial parameter storage
- SOT-23-6 package at 2.9 mm x 1.6 mm footprint minimizes board area for constrained IoT node and smart sensor PCB designs
Applications
The 24AA025E64T-I/OT is primarily used in Ethernet-connected devices, Wi-Fi modules, and IoT gateway hardware where a unique EUI-64 network identifier must be stored and retrieved at power-up without factory programming steps. Its 2 kbit user-writable EEPROM area also stores calibration coefficients and configuration parameters for smart sensors and industrial field instruments. The device is commonly found on expansion boards and accessory modules that require automatic self-identification by a host microcontroller over the 400 kHz I2C bus.
Specifications
| Manufacturer Package Code | SOT-23-6 |
| Factory Lead Time | 6Weeks |
| YTEOL | 13 |
| Additional Feature | 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-G5 |
| 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 | TSOP5/6,.11,37 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE, LOW PROFILE, SHRINK PITCH |
| Parallel/Serial | SERIAL |
| Peak Reflow Temperature (Cel) | 260 |
| Programming Voltage | 5V |
| 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 | 0.95mm |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | 40 |
| Write Cycle Time-Max (tWC) | 5ms |
| 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 |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for 24AA025E64T-I/OT:
Microchip Technology Inc 24AA025E48 device, which will be a pre-prog. version of the 24AA024H (DFAX7).
Frequently Asked Questions
How does the factory-programmed EUI-64 in 24AA025E64T-I/OT simplify network device manufacturing?
The 24AA025E64T-I/OT ships with a globally unique 64-bit EUI-64 identifier pre-programmed at the factory and write-protected in the upper memory block. This eliminates the need for a separate MAC address provisioning step during board manufacturing, saving programming time per unit and removing the risk of address collisions in Ethernet, IEEE 802.15.4, or Bluetooth Low Energy device fleets of any size.
At 1.8 V supply, what is the maximum I2C clock frequency supported by 24AA025E64T-I/OT?
At supply voltages between 1.7 V and 2.5 V, the 24AA025E64T-I/OT supports I2C clock frequencies up to 100 kHz in standard mode. At 2.5 V to 5.5 V, it supports up to 400 kHz fast mode. This means designs using a 1.8 V microcontroller I2C bus must operate at 100 kHz maximum to stay within the device's guaranteed AC timing specifications.
How much user-writable storage does 24AA025E64T-I/OT provide alongside the EUI-64 region?
The 24AA025E64T-I/OT offers 2 kbit (256 bytes) of total memory. The upper 16 bytes are reserved for the factory-programmed and write-protected EUI-64 block. The remaining 240 bytes are fully user-writable and can store sensor calibration coefficients, device configuration parameters, or firmware version strings, with endurance of 1,000,000 write/erase cycles per byte.
When is 24AA025E64T-I/OT preferred over 24AA025T-I/OT for IoT module designs?
The 24AA025E64T-I/OT is preferred when the design requires a globally unique network address pre-provisioned at chip level, such as in Ethernet PHY companion circuits or Zigbee coordinator modules. The 24AA025T-I/OT offers identical 2 kbit storage and 1.7 V to 5.5 V operation but without the EUI-64 node identity region, requiring the manufacturer to program a unique identifier separately, adding cost at approximately 50-unit production runs and above.
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| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $0.3670 | $0.37 |
| 100+ | $0.3300 | $33.00 |
| 250+ | $0.1809 | $45.23 |
| 500+ | $0.1807 | $90.35 |
| 1000+ | $0.1805 | $180.50 |
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