The DS2477 provides additional levels of authentication and device integrity protection for industrial systems, medical sensors, and Internet of Things (IoT) tools.

Maxim's DS2477, available from Mouser Electronics, is a secure I²C coprocessor with built-in 1-Wire master that combines FIPS202-compliant secure hash algorithm (SHA-3) challenge and response authentication with Maxim's patented ChipDNA™ feature to provide a cost-effective solution with the ultimate protection against security attacks.

The DS2477 utilizes the ChipDNA output as key content to cryptographically secure all device-stored data. Attempts to probe or observe ChipDNA operation modifies the underlying circuit characteristics, which prevents discovery of the unique value used by the chip cryptographic functions. The ChipDNA circuit, a physically unclonable technology, uses a random variation of semiconductor device characteristics that naturally occur during wafer fabrication. The circuit generates a unique output value that is repeatable over time, temperature, and operating voltage, and provides a core set of cryptographic tools derived from integrated blocks.

To learn more, visit www.mouser.com/maxim-ds2477-coprocessor.