DS2431+

The 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. As a special feature, the four memory pages can individually be write protected or put in EPROM-emulation mode, where bits can only be changed from a 1 to a 0 state. It communicates over the single-conductor 1-Wire bus. The communication follows the standard 1-Wire protocol. Each 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 multi-drop, 1-Wire net environment.

• Easily Add Traceability and Relevant Information to Any Individual System
• 1024 bits of EEPROM Memory Partitioned Into Four Pages of 256 bits
• Memory pages can be permanently write protected or put in EPROM-Emulation mode (Write to 0)
• Switchpoint Hysteresis and Filtering to Optimize Performance in Presence of Noise
• Minimalist 1-Wire Interface Lowers Cost and Interface Complexity
• IEC 1000-4-2 Level 4 ESD Protection (±8kV Contact, ±15kV Air, Typical)
• Reads and Writes Over a Wide Voltage Range from 2.8V to 5.25V from -40°C to +85°C
• Communicates to Host with a Single Digital Signal at 15.4kbps or 125kbps

Applications

Sensing & Instrumentation, Medical, Automotive

Warnings

Stresses beyond those listed under "Absolute Maximum Ratings" may cause permanent damage to the device. Market demand for this product has caused an extension in leadtimes. Delivery dates may fluctuate. Product exempt from discounts.

Notes

ADI products are only authorized (and sold) for use by the customer and are not to be resold or otherwise passed on to any third party