DS28E01P-100+

The DS28E01P-100+ is a 1kB protected 1-Wire EEPROM with SHA-1 engine. The DS28E01-100 combines 1024 bits of EEPROM with challenge-and-response authentication security implemented with the ISO/IEC 10118-3 secure hash algorithm (SHA-1). The 1024-bit EEPROM array is configured as four pages of 256 bits with a 64-bit scratchpad to perform write operations. All memory pages can be write protected and one page can be put in EPROM-emulation mode, where bits can only be changed from a 1 to a 0 state. Each DS28E01-100 has its own guaranteed unique 64-bit ROM registration number that is factory lasered into the chip. The DS28E01-100 communicates over the single-contact 1-Wire® bus. The communication follows the standard 1-Wire protocol with the registration number acting as the node address in the case of a multidevice 1-Wire network.

• On-chip 512-bit SHA-1 engine to compute 160-bit MAC and to generate secrets
• User-programmable page write protection for page 0, page 3 or all four pages together
• User-programmable OTP EPROM emulation mode for page 1 (write to 0)
• Communicates to host with a single digital signal at 15.3 or 90.9kbps using 1-wire protocol
• Switch point hysteresis and filtering to optimize performance in the presence of noise

Remarques

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