DS28E22

PRODUCTION

DeepCover Secure Authenticator with 1-Wire SHA-256 and 2Kb User EEPROM

Protect Your Development Investment with Crypto-Strong Authentication and Advanced Physical Security

Data Sheet (Rev. 3)

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Part Details

Symmetric Key-Based Bidirectional Secure Authentication Model Based on SHA-256
Dedicated Hardware-Accelerated SHA Engine for Generating SHA-256 MACs
Strong Authentication with a High Bit Count, User-Programmable Secret, and Input Challenge
2048 Bits of User EEPROM Partitioned Into 8 Pages of 256 Bits
User-Programmable and Irreversible EEPROM Protection Modes Including Authentication, Write and Read Protect, and OTP/EPROM Emulation
Unique, Factory-Programmed 64-Bit Identification Number
Single-Contact 1-Wire Interface Communicates with Host at Up to 76.9kbps
Operating Range: 3.3V ±10%, -40°C to +85°C
Low-Power 5μA (typ) Standby
±8kV Human Body Model ESD Protection (typ)
6-Pin TDFN, 6-Lead TSOC Packages

Documentation

Complete documentation is available upon completion of a Non-Disclosure Agreement (NDA). To request an NDA, click here.

This is the most up-to-date revision of the Data Sheet.

Software Resources

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Hardware Ecosystem

Parts	Product Life Cycle	Description
Security & Authentication 5
DS28E02	PRODUCTION	1-Wire SHA-1 Authenticated 1Kb EEPROM with 1.8V Operation
DS28E10	PRODUCTION	1-Wire SHA-1 Authenticator
DS2465	RECOMMENDED FOR NEW DESIGNS	DeepCover Secure Authenticator with SHA-256 Coprocessor and 1-Wire Master Function
DS28E15	RECOMMENDED FOR NEW DESIGNS	DeepCover Secure Authenticator with 1-Wire SHA-256 and 512-Bit User EEPROM

DS28E25

PRODUCTION

DeepCover Secure Authenticator with 1-Wire SHA-256 and 4Kb User EEPROM

Tools & Simulations

DeepCover® Security Lab

Open Tool

Evaluation Kits

Evaluation System for the DS28E22 and DS2465

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Features and Benefits

EV Kit Contains
- Five DS28E22 Devices in a TDFN-EP Package
- One USB-to-I²C PC Adapter (DS9400#) Provides PC Connection
- DS2465EVKIT# Evaluation Board Provides 1-Wire Interface and SHA-256 Coprocessor
- One EV Board (DS9120Q+) with TDFN-EP Socket Provides Easy Chip Evaluation
USB-to-I²C Module Contains Prolific PL-2303HXD USB-to-UART Chip
- Enumerates as a Virtual PC COM Port
- Windows-Certified Logo USB Device Driver Available
- Standard USB Cable Interface
EV Board Contains Convenient On-Board Test Points
Evaluation Software Will Be Provided Along with Full Evaluation Kit Data Sheet

Product Details

The DS28E22 evaluation system (EV system) provides the hardware and software necessary to evaluate and program the DS28E22 DeepCover^® Secure Authenticator. EV system operation requires a host PC for user-friendly evaluation.

This evaluation system includes a DS9400 USB-to-I²C PC adapter, a DS2465 EV board, a DS9120Q+ evaluation socket board for a TDFN DS28E22, and five DS28E22 sample devices in a TDFN package. The EV software runs on Windows^® 8, Windows 7, Windows Vista^®, and Windows XP^® operating systems. Detailed instructions for downloading and installing software, as well as general EV system operation are included in the EV system data sheet; software and documentation are available at the link above.

Note: The DS2465 EV board and DS9400# subcomponents are not available for direct sale outside of evaluation systems. A data sheet specific to DS9400# is not available.