What is Dallas DS2431 Chips?

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About DS2431 Chips

The DS2431 is a 1-Wire® EEPROM device that is made up of four memory sections, each one having 256 bits. A scratchpad of eight bytes is used to store data, and the data is then copied to the EEPROM. In addition, the four memory sections can be individually switched to EPROM-emulation mode, where bits can only be altered from 1 to 0. The DS2431 communicates using a single wire. The 1-Wire protocol is used for communication.

Dallas DS2431

Applications of DS2431

  • Analog sensor calibration, including IEEE P1451.4;
  • Accessories/PCB identification, smart sensors;
  • Ink and toner cartridge identification;
  • Automotive sensor identification and calibration;
  • data storage, automotive cable assembly identification.

Benefits of DS2431

  1. The DS2431 contains 1024 bits of electrically erasable and programmable ROM partitioned into four pages of 256 bits each.
  2. The ROM-emulation mode allows individual pages to be permanently write-protected or set to EPROM-emulation mode (“write to 0”).
  3. Switchpoint hysteresis and filtering are used to optimize performance in the presence of noise.
  4. The DS2431 is built to withstand voltages from -40°C to +125°C and includes IEC 1000-4-2 Level 4 ESD protection (+8kV contact, +15kV air, typical).
  5. The device communicates with a host using a single digital signal at 15.4kbps via the OneWire protocol.
  6. It also meets the AEC-Q100 Grade 1 quality standard. Standard versions are also available for industrial temperature range (−40°C to +125°C) (DS2431).



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Aidan Taylor
Aidan Taylor

I am Aidan Taylor and I have over 10 years of experience in the field of PCB Reverse Engineering, PCB design and IC Unlock.

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