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

Part Models
2
1ku List Price
Starting From $1.29
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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
DS28C22
DeepCover Secure Memory with I2C SHA-256 and 3Kb User EEPROM
DS28C22: Typical Application Circuit
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Hardware Ecosystem

Parts Product Life Cycle Description
1-Wire Secure Authenticators 4
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
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Tools & Simulations

DeepCover® Security Lab

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Evaluation Kits

DS28C22EVKIT

Evaluation System for the DS28C22

Features and Benefits

  • Complete EV System:
    • Five DS28C22 ICs in TDFN-EP Package
    • One USB-to-I2C Module (DS9400#) Provides PC Connection
    • One EV Board (DS9121Q+) 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
  • I2C Host Interface Supports 400kHz I2C Communication Speeds
  • EV Board Contains Convenient On-Board Test Points
  • Evaluation Software Will Be Provided Along with Full Evaluation Kit Data Sheet

Product Details

The DS28C22 evaluation system (EV system) provides the hardware and software necessary to evaluate and program the DS28C22 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 DS9121Q+ evaluation socket board for a TDFN DS28C22, and five DS28C22 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 is 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.

DS28C22EVKIT
Evaluation System for the DS28C22

Reference Designs

MAXREFDES43 - System Board
MAXREFDES43 Circuits from the lab

Secure Authentication Design with I2C SHA-256

Features and Benefits

  • SHA-256 authentication
  • I2C interface
  • Example source code
  • Pmod-compatible form factor

Competitive Advantages

  • Crypto-strong authentication
  • Fast performance with hardware acceleration
  • MAXREFDES43
    Secure Authentication Design with I2C SHA-256
    MAXREFDES43 - System Board
    MAXREFDES43 inserted into the ZedBoard development platform
    MAXREFDES43 - Design Block Diagram

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