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24AA256UID

256Kb I2C Serial EEPROM with Pre-Programmed Serial Number

Status: In Production

Features:

  • EUI-48™ & EUI-64™ compatible
  • Unique Across All UID-Family EEPROMs
  • Scalable to 48-bit, 64-bit, 128-bit, 256-bit, and other lengths
  • Stored in Permanently Write-Protected Upper 1/8th of EEPROM Array
  • Self-Timed Erase/Write Cycle
  • 64-Byte Page Write Buffer
  • Page Write Time 5 ms Max.
  • Low Power
  • Operating voltage 1.7V to 5.5V
  • Read current 1 mA, max.
  • Standby current 1 uA, max.
  • Cascadable up to Eight Devices
  • Schmitt Trigger Inputs for Noise Suppression
  • Output Slope Control to Eliminate Ground Bounce
  • 100 kHz and 400 kHz Clock Compatible
  • ESD Protection >4000V
  • Pb-Free and RoHS Compliant
  • Packages Include 8-lead PDIP, SOIC and TSSOP
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Overview
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Development Environment
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Device Overview

Summary

The Microchip Technology Inc. 24AA256UID is a 256 Kbit Electrically Erasable PROM with a pre-programmed globally unique EUI-48™ and EUI-64™ IEEE MAC address. The device also has a pre-programmed 32-bit unique ID. This serial number is unique across all UID-Family of EEPROMs. The ID is Scalable to 48-bit, 64-bit, 128-bit, 256-bit, and other lengths. The 24AA256UID is a 32K x 8 (256 Kbit) Serial Electrically Erasable PROM, capable of operation across a broad voltage range (1.8V to 5.5V). It has been developed for advanced, low-power applications such as personal communications or data acquisition. This device also has a page write capability of up to 64 bytes of data. This device is capable of both random and sequential reads up to the 256K boundary. The 24AA256UID device is avaliable in 8-SOIC, 8-PDIP and 8-TSSOP packages.

Additional Features
    • Pre-programmed Codes
      • Globally Unique 48-bit and 64-bit Node Addresses
        • EUI-48™ & EUI-64™ compatible
      • Pre-programmed 32-bit Serial Number (ID)
        • Unique Across All UID-Family EEPROMs
        • Scalable to 48-bit, 64-bit, 128-bit, 256-bit, and other lengths
      • Stored in Permanently Write-Protected Upper 1/8th of EEPROM Array
        • Reliable EEPROM Memory
          • Self-Timed Erase/Write Cycle
          • 64-Byte Page Write Buffer
          • Page Write Time 5 ms Max.
        • Low Power
          • Operating voltage 1.7V to 5.5V
          • Read current 1 mA, max.
          • Standby current 1 uA, max.
        • 2-Wire Serial Interface, I2C™ Compatible
          • Cascadable up to Eight Devices
          • Schmitt Trigger Inputs for Noise Suppression
          • Output Slope Control to Eliminate Ground Bounce
          • 100 kHz and 400 kHz Clock Compatible
        • ESD Protection >4000V
        • Pb-Free and RoHS Compliant
        • Packages Include 8-lead PDIP, SOIC and TSSOP
    Parametrics
    Name
    Value
    Density
    256K bits (x8)
    Op. Volt Range (V)
    1.7 to 5.5
    Max. Clock Freq.
    400 kHz
    Page Size (bytes)
    64
    Write Protect
    Quarter Array
    Temp Range (°C)
    -40°C to +85°C
    Endurance
    1,000,000
    Data Retention (Years)
    200

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    • Socket: AC164365   PartNo: 24AA256UID (8ST)
    • Socket: AC164344   PartNo: 24AA256UID (8P)
    • Socket: AC164344   PartNo: 24AA256UID (8SN)
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    RoHS Information

    Part Number
    Device Weight (g)
    Shipping Weight (Kg)
    Lead Count
    Package Type
    Package Width
    Solder Composition
    JEDEC Indicator
    RoHS
    China EFUP
    24AA256UID-I/ST
    0.033000
    0.090000
    8
    TSSOP
    4.4mm
    Matte Tin
    e3
    24AA256UIDT-I/ST
    0.033000
    0.215600
    8
    TSSOP
    4.4mm
    Matte Tin
    e3
    24AA256UID-I/SN
    0.078000
    0.250000
    8
    SOIC
    .1China RoHs 50.pngIn(3.90mm)
    Matte Tin
    e3
    24AA256UIDT-I/SN
    0.078000
    0.230303
    8
    SOIC
    .1China RoHs 50.pngIn(3.90mm)
    Matte Tin
    e3
    24AA256UID-I/P
    0.486700
    0.900000
    8
    PDIP
    .300in
    Matte Tin
    e3
    To see a complete listing of RoHS data for this device, please Click here
    Shipping Weight = Device Weight + Packing Material weight. Please contact sales office if device weight is not available.

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