(Hong Kong)
Product Summary
The DS28E01P-100 is a 1Kb Protected 1-Wire EEPROM. 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 multiservice 1-Wire network. The applications of the DS28E01P-100 include Printer Cartridge Configuration and Monitoring, Medical Sensor Authentication and Calibration and System Intellectual Property Protection.
Parametrics
DS28E01P-100 absolute maximum ratings: (1)IO Voltage Range to GND: -0.5V to +6V; (2)IO Sink Current: 20mA; (3)Operating Temperature Range: -40℃ to +85℃; (4)Junction Temperature: +150℃; (5)Storage Temperature Range: -55℃ to +125℃; (6)Lead Temperature: +300°C; (7)Soldering Temperature (reflow): +260℃.
Features
DS28E01P-100 features: (1)1024 Bits of EEPROM Memory Partitioned Into Four Pages of 256 Bits; (2)On-Chip 512-Bit SHA-1 Engine to Compute 160-Bit Message Authentication Codes (MACs) and to Generate Secrets; (3)Write Access Requires Knowledge of the Secret and the Capability of Computing and Transmitting a 160-Bit MAC as Authorization; (4)User-Programmable Page Write Protection for Page 0, Page 3, or All Four Pages Together; (5)Communicates to Host with a Single Digital Signal at 15.3kbps or 125kbps Using 1-Wire Protocol; (6)Switch point Hysteresis and Filtering to Optimize Performance in the Presence of Noise; (7)Reads and Writes Over 2.8V to 5.25V Voltage Range from -40℃ to +85℃; (8)6-Lead TSOC and TDFN or 2-Lead TO-92 and SFN Packages.
Diagrams
