DS2431P-A1+T

DS2431P-A1+T is a 1024-bit, 1-Wire® EEPROM chip organized as four memory pages of 256bits 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 multidrop 1-wire net environment. Applications include automotive sensor identification and calibration data storage, automotive cable assembly identification, and accessory/PCB identification.

• 1024bits of EEPROM memory partitioned into four pages of 256bits
• Switchpoint hysteresis and filtering to optimize performance in the presence of noise
• IEC 1000-4-2 level 4 ESD protection (+8KV contact, +15KV air, typ)
• Reads and writes over a 4.5V to 5.25V voltage range from -40°C to +125°C
• Communicates to host with a single digital signal at 15.4kbps using 1-wire protocol
• Meets AEC-Q100 grade 1 qualification requirements
• Recovery time is 5µs min at RPUP=2.2Kohm
• EEPROM programming current is 0.8mA maximum
• 6 TSOC package
• Temperature range from -40°C to +125°C

Warnings

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.