DS28C22

PRODUCTION

DeepCover Secure Memory with I²C SHA-256 and 3Kb User EEPROM

Protect Your Development Investment with SHA-256 Crypto-Strong Authentication and Encryption

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Part Details

Symmetric Key-Based Bidirectional Secure Authentication and Encryption Model Based on SHA-256
Dedicated Hardware-Accelerated SHA Engine for Generating SHA-256 MACs
Strong Authentication with a 256-Bit, User-Programmable Secret, and Input Challenge
3072 Bits of User EEPROM Partitioned Into 12 Pages of 256 Bits
User-Programmable and Irreversible EEPROM Protection Modes Including Authentication, Write and Read Protect, Encryptions, and OTP/EPROM Emulation
Supports 100kHz and 400kHz I²C Communication Speeds
Supports Power-Saving Sleep Mode at 0.5µA (typ)
Operating Range: 3.3V ±10%, -40°C to +85°C
8-Pin TDFN Package

Complete documentation is available upon completion of a Non-Disclosure Agreement (NDA).

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

Parts	Product Life Cycle	Description
DS28E15	RECOMMENDED FOR NEW DESIGNS	DeepCover Secure Authenticator with 1-Wire SHA-256 and 512-Bit User EEPROM
DS28E22	PRODUCTION	DeepCover Secure Authenticator with 1-Wire SHA-256 and 2Kb User EEPROM
DS28E25	PRODUCTION	DeepCover Secure Authenticator with 1-Wire SHA-256 and 4Kb User EEPROM
DS2465	RECOMMENDED FOR NEW DESIGNS	DeepCover Secure Authenticator with SHA-256 Coprocessor and 1-Wire Master Function