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  2. iButton and Memory
  3. Memory IC
  4. 1-Wire Memory (EPROM, EEPROM, ROM)
  5. DS28E80


Features and Benefits

  • High Gamma Resistance Allows User-Programmable Manufacturing or Calibration Data Before Medical Sterilization
    • Resistant Up to 75kGy (kiloGray) of Gamma Radiation
    • Reprogrammable 248 Bytes of User Memory
  • Lower Block Size Provides Greater Flexibility in Programming User Memory
    • Memory is Organized as 8-Byte Blocks
    • Each Block Can Be Written 8 Times
    • User-Programmable Write Protection for Individual Memory Blocks
  • Advanced 1-Wire Protocol Minimizes Interface to Just Single Contact
  • Compact Package and Single IO Interface Reduces Board Space and Enhances Reliability
    • Unique Factory-Programmed, 64-Bit Identification Number
    • Communicates at 1-Wire Standard Speed (15.3kbps max) and Overdrive Speed (76kbps max)
    • Operating Range: 3.3V ±10%, -40°C to + 85°C Reading, 0°C to +50°C Writing
    • ±8kV HBM ESD Protection (typ) for IO Pin
    • 6-Pin TDFN Package

Product Details

The DS28E80 is a user-programmable nonvolatile memory chip. In contrast to the floating-gate storage cells, the DS28E80 employs a storage cell technology that is resistant to gamma radiation. The DS28E80 has 248 bytes of user memory that are organized in blocks of 8 bytes. Individual blocks can be write-protected. Each memory block can be written 8 times. The DS28E80 communicates over the single-contact 1-Wire® bus at standard speed or overdrive speed. Each device has its own guaranteed unique 64-bit registration number that is factory programmed into the chip. The communication follows the 1-Wire protocol with a 64-bit registration number acting as node address in the case of a multiple-device 1-Wire network.


  • Identification and Calibration Medical Tools/Accessories
  • Identification of Medical Consumables

Product Lifecycle icon-recommended Recommended for New Designs

This product has been released to the market. The data sheet contains all final specifications and operating conditions. For new designs, ADI recommends utilization of these products.

Evaluation Kits (1)

Tools & Simulations

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Product Recommendations

DS28E80 Companion Parts

Recommended Related Parts

Design Resources

ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well.  "Zero defects" for shipped products is always our goal.View our quality and reliability program and certifications for more information.

Part Number Material Declaration Reliability Data Pin/Package Drawing CAD Symbols, Footprints & 3D Models
DS28E80Q+T Material Declaration Reliability Data 6-LFCSP-3X3X0.75
DS28E80Q+U Material Declaration Reliability Data 6-LFCSP-3X3X0.75
Wafer Fabrication Data DS28E80 Reliability Data

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(*)The 1Ku list pricing shown is for BUDGETARY USE ONLY, shown in United States dollars (FOB USA per unit for the stated volume), and is subject to change. International prices may differ due to local duties, taxes, fees and exchange rates. For volume-specific price or delivery quotes, please contact your local Analog Devices, Inc. authorized distributor. Pricing displayed for Evaluation Boards and Kits is based on 1-piece pricing.


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Evaluation Boards

Pricing displayed is based on 1-piece.

Up to two boards can be purchased through Analog.com. To order more than two, please purchase through one of our listed distributors.

Pricing displayed is based on 1-piece. The USA list pricing shown is for budgetary use only, shown in United States dollars (FOB USA per unit), and is subject to change. International prices may vary due to local duties, taxes, fees and exchange rates.