DS28E02
PRODUCTION1-Wire SHA-1 Authenticated 1Kb EEPROM with 1.8V Operation
Provides Low-Cost, Secure Bidirectional Authentication Over a Single Contact for Low-Power Applications
- Part Models
- 4
- 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 (MACs) 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 12.5kbps or 35.7kbps Using 1-Wire Protocol
- Switchpoint Hysteresis and Filtering to Optimize Communication Performance in the Presence of Noise
- Reads and Writes Over 1.75V to 3.65V Voltage Range from -20°C to +85°C
- 6-Lead TSOC and TDFN Packages
The DS28E02 combines 1024 bits of EEPROM with challenge-and-response authentication security implemented with the FIPS 180-3 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 DS28E02 has its own guaranteed unique 64-bit ROM registration number that is factory installed into the chip. The DS28E02 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
- Medical Consumable Authentication
- Printer Cartridge Configuration and Monitoring
- Reference Design License Management
- Sensor/Accessory Authentication and Calibration
- System Intellectual Property Protection
Documentation
Data Sheet 1
Reliability Data 1
Application Note 1
Design Note 1
Technical Articles 9
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 |
---|---|---|---|
DS28E02P+ | Thin Small-Outline C-Lead | ||
DS28E02P+T&R | Thin Small-Outline C-Lead | ||
DS28E02Q+T&R | Thin Dual Flatpack No Leads, Exposed Pad | ||
DS28E02Q+U | Thin Dual Flatpack No Leads, Exposed Pad |
Part Models | Product Lifecycle | PCN |
---|---|---|
No Match Found | ||
Jun 20, 2016 - 1612 ASSEMBLY |
||
DS28E02Q+T&R | PRODUCTION | |
DS28E02Q+U | PRODUCTION |
This is the most up-to-date revision of the Data Sheet.
Hardware Ecosystem
Parts | Product Life Cycle | Description |
---|---|---|
1-Wire Interface Products 1 | ||
DS2482-100 | PRODUCTION | Single-Channel 1-Wire Master |
1-Wire Secure Authenticators 1 | ||
DS28E10 | PRODUCTION | 1-Wire SHA-1 Authenticator |
Secure Microcontrollers 1 | ||
DS2460 | PRODUCTION | SHA-1 Coprocessor with EEPROM |
Tools & Simulations
DeepCover® Security Lab
Open Tool
Evaluation Kits
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