DS28E01A-100
PRODUCTION1Kb Protected 1-Wire EEPROM with SHA-1 Engine
- Part Models
- 2
- 1ku List Price
- price unavailable
Part Details
- 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
- Dedicated 64-Bit Write-Only Secret with a Feature to Extend the Secret Size to 320 Bits by Setting a 256-Bit Page as Both Read and Write Protected
- 5-Byte Challenge Size for Read Authenticated Page with Optional “Anonymous” Mode
- 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 90.9kbps 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 and TDFN or 2-Lead TO-92 and SFN Packages
The DDS28E01-100/DS28E01A-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/DS28E01A-100 has its own guaranteed unique 64-bit ROM registration number that is factory lasered into the chip. The DS28E01-100/DS28E01A-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.
Applications
- Printer Cartridge Configuration and Monitoring
- Medical Sensor Authentication and Calibration
- System Intellectual Property Protection
Documentation
ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal. View our quality and reliability program and certifications for more information.
| Part Model | Pin/Package Drawing | Documentation | CAD Symbols, Footprints, and 3D Models |
|---|---|---|---|
| DS28E01AP-100+ | Thin Small-Outline C-Lead | ||
| DS28E01AP-100+T | Thin Small-Outline C-Lead |
This is the most up-to-date revision of the Data Sheet.
Evaluation Kits
Evaluation Kit for the DS28E01-100 Plug-In Module
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