What are the key features of the DS2431P+TR?
The DS2431P+TR is a 1-Wire® EEPROM memory device with 1 Kbit (1024 bits) of nonvolatile storage, partitioned into four independently accessible 256-bit pages. It supports flexible memory protection, allowing pages to be write-protected or placed in EPROM-emulation mode (write to 0). The minimalist 1-Wire interface reduces system complexity and wiring, and the part operates over a wide voltage range (2.8 V to 5.25 V) with industrial-grade ESD protection and temperature support from −40 °C to +85 °C.
What is the DS2431P+TR used for?
This EEPROM device is commonly used for storing configuration settings, serial numbers, calibration data, asset identifiers, and other small amounts of information that must be retained when power is removed. Its simple 1-Wire interface makes it ideal for traceability and identification tasks in industrial equipment, consumer electronics, medical systems, and embedded applications where a low-cost, compact memory solution is needed.
Are there alternative parts?
Yes. Similar 1-Wire EEPROM parts include the DS24B33 (larger memory size) or DS2433/DS28E38 (different density and security features) from Maxim Integrated. Other manufacturers also offer small nonvolatile memory with one-wire or simple serial interfaces, but when selecting alternatives, be sure to match memory size, interface protocol, operating voltage, and any required protection features for your specific application.
