QuickView

Technical Documents

Ordering Info

More Information

All

Description

ABRIDGED DATA SHEET (PDF, 428kB) Download   E-Mail Request Full Data Sheet 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 node address in the case of a multi-device 1-Wire network.

Key Features		Applications/Uses
1024 Bits of EEPROM Memory Partitioned Into Four Pages of 256 Bits On-Chip 512-Bit SHA-1 Engine to Compute 160-Bit Message Authentication Codes (MAC) and to Generate Secrets Write Access Requires Knowledge of the Secret and the Capability of Computing and Transmitting a 160-Bit MAC as Authorization 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 15.3kbps or 125kbps Using 1-Wire Protocol Switchpoint Hysteresis and Filtering to Optimize Performance in the Presence of Noise Reads and Writes Over a Wide Voltage Range of 2.8V to 5.25V from -40°C to +85°C 6-Lead TSOC or 2-Lead SFN Packages		Accessory/PCB Identification Identification and authentication of consumables Ink and Toner Print Cartridge Identification Intellectual Property, License Management Sensor Calibration and Authentication System Programmable Feature Control

Didn't Find What You Need?

Next Day Product Selection Assistance from Applications Engineers Parametric Search Applications Help

QuickView

Technical Documents

Ordering Info

More Information

Description   Key Features   Applications/Uses   Key Specifications   Diagram

Data Sheet   Application Notes   Design Guides   Engineering Journals   Reliability Reports   Software/Models   Evaluation Kits

Price and Availability   Samples   Buy Online   Package Information   Lead-Free Information

Related Products   Notes and Comments   Evaluation Kits