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Home » NEWEST Products » New by Manufacturer » Maxim Integrated » Maxim Integrated DS2431 1024-Bit 1-Wire EEPROM
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Maxim IC DS2431 1024-Bit 1-Wire® EEPROM

Maxim Integrated DS2431 1024-Bit 1-Wire® EEPROM

Maxim Integrated's DS2431 is a 1024-bit, 1-Wire® EEPROM chip 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. The four memory pages of the Maxim Integrated IC DS2431 can be individually write protected or put in EPROM-emulation mode, where bits can only be changed from a 1 to a 0 state. The DS2431 EEPROM chip communicates over the single-conductor 1-Wire bus. The communication follows the standard 1-Wire protocol. Each DS2431 device has its own unalterable and unique 64-bit ROM registration number that is factory lasered into the chip. The registration number is used to address the device in a multidrop, 1-Wire net environment. These Maxim Integrated EEPROM devices are designed for use in a variety of applications, including accessory / PCB identification, medical sensor calibration data storage, and analog sensor calibration.

Features
  • 1024 Bits of EEPROM Memory Partitioned into Four Pages of 256 Bits
  • Individual Memory Pages can be Permanently Write Protected or Put in EPROM-Emulation Mode ("Write to 0")
  • Switchpoint Hysteresis and Filtering to Optimize Performance in the Presence of Noise
  • IEC 1000-4-2 Level 4 ESD Protection (±8kV Contact, ±15kV Air, typical)
  • Reads and Writes Over a Wide Voltage Range of 2.8V to 5.25V from -40°C to +85°C
  • Communicates to Host with a Single Digital Signal at 15.4kbps or 125kbps Using 1-Wire Protocol
Applications
  • Accessory/PC Board Identification
  • After-Market Management of Consumables
  • Analog Sensor Calibration Including IEEEP 1451.4 Smart Sensors
  • Ink and Toner Print Cartridge Identification
  • Medical Sensor Calibration Data Storage

Typical Operating Circuit

Typical Operating Circuit
  • Maxim Integrated
  • Semiconductors|Embedded Processors|IC-Memory