Product Summary

The DS28E01P-100+ is a 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. The DS28E01P-100+ has its own guaranteed unique 64-bit ROM registration number that is factory lasered into the chip. The DS28E01P-100+ communicates over the single-contact 1-Wire® bus. The communication follows the standard Dallas Semiconductor 1-Wire protocol with the registration number acting as node address in the case of a multi-device 1-Wire network. The applications of the DS28E01P-100+ include Printer Cartridge Configuration and Monitoring, Medical Sensor Authentication and Calibration, System Intellectual Property Protection.

Parametrics

DS28E01P-100+ absolute maximum ratings: (1)IO Voltage to GND: -0.5V, +6V; (2)IO Sink Current: 20mA; (3)Operating Temperature Range: -40℃ to +85℃; (4)Junction Temperature: +150℃; (5)Storage Temperature Range: -55℃ to +125℃.

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 (MAC) 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)User-programmable OTP EPROM emulation mode for page 1 ("write to 0"); (6)Communicates to host with a single digital signal at 15.3k bits or 125k bits per second using 1-Wire protocol.

Diagrams

DS2890
DS2890
Other

Data Sheet
Negotiable 
DS2890-000
DS2890-000
Maxim Integrated Products
Digital Potentiometer ICs
Data Sheet
Negotiable 
DS2890-000+
DS2890-000+
Maxim Integrated Products
Digital Potentiometer ICs
Data Sheet
Negotiable 
DS2890-000+T&R
DS2890-000+T&R
Maxim Integrated Products
Digital Potentiometer ICs
Data Sheet
Negotiable 
DS2890P-000
DS2890P-000
Maxim Integrated Products
Digital Potentiometer ICs
Data Sheet
Negotiable 
DS2890P-000+
DS2890P-000+

IC POT DIGITAL 1-WIRE 100K 6TSOC
Data Sheet
Negotiable