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Analog Devices / Maxim Integrated DS28E07 1024-bit 1-Wire® EEPROM

Analog Devices DS28E07 1024-bit 1-Wire® EEPROM is organized as four memory pages of 256 bits each. Data is written to an 8-byte scratchpad, verified, and then copied to the EEPROM memory. As a special feature, the four user memory pages can be write-protected or put in EPROM-emulation mode, where bits can only be changed from a 1 to a 0. Each device has its own guaranteed unique 64-bit ROM identification number (ROM ID) factory programmed into the chip. The communication follows the 1-Wire protocol with the ROM ID acting as node address in the case of a multiple-device 1-Wire network.

Features

  • Advanced 1-Wire Protocol Minimizes Interface to Just Single I/O Reducing Required Pin Count and Enhancing Reliability
    • Unique Factory-Programmed, Unalterable 64-Bit Identification Number
    • Switchpoint Hysteresis and Filtering to Optimize Performance in the Presence of Noise
    • Communicates to Host with a Single Digital Signal at 15.4kbps or 125kbps Using 1-Wire Protocol
    • Reads and Writes over a Wide Voltage Range from 3.0V to 5.25V from -40°C to +85°C
    • ±8kV HBM ESD Protection (typ) for I/O Pin
  • Partitioning of Memory Provides Greater Flexibility in Programming User Data
    • 1024 Bits of EEPROM Memory Organized as Four Pages of 256 Bits
    • Individual Memory Pages Can Be Permanently Write Protected or Put in EEPROM-Emulation Mode (Write to 0)
  • Package Options
    • TDFN-6
    • TO-92-3
    • TSOC-6

Applications

  • Accessory/PCB Identification
  • After-Market Management of Consumables
  • Analog Sensor Calibration, Including IEEE P1451.4 Smart Sensors
  • Ink and Toner Print Cartridge Identification
  • Medical Sensor Calibration Data Storage

Block Diagram

Block Diagram - Analog Devices / Maxim Integrated DS28E07 1024-bit 1-Wire® EEPROM

Additional Resources

Pubblicato: 2017-03-07 | Aggiornato: 2023-04-21