General Description

The

DS28C16

secure

authenticator

combines

FIPS202-compliant Secure Hash Algorithm (SHA-3) chal-

lenge and response authentication with secured EEP-

ROM.

The device provides a core set of cryptographic tools de-

rived from integrated blocks including a SHA-3 engine,

256 bits of secured user EEPROM, a decrement-only

counter, and a unique 64-bit ROM identification number

(ROM ID). The unique ROM ID is used as a fundamental

input parameter for cryptographic operations and serves

as an electronic serial number within the application.

Applications

● Medical Tools/Accessories Authentication and

Calibration

● Accessory and Peripheral Secure Authentication

● Battery Authentication and Charge Cycle Tracking

Request DS28C16

Security User Guide

Benefits and Features

● Robust Countermeasures Protect Against Security

Attacks

• All Stored Data Cryptographically Protected from

Discovery

● Efficient Secure Hash Algorithm to Authenticate

Peripherals

• FIPS 202-Compliant SHA-3 Algorithm for

Challenge/Response Authentication

• FIPS 198-Compliant Keyed-Hash Message

Authentication Code (HMAC)

● Supplemental Features Enable Easy Integration into

End Applications

• 17-Bit, One-Time Settable, Nonvolatile Decrement-

Only Counter with Authenticated Read

• Secure Storage for Secrets

• 256 Bits of Secure EEPROM for User Data

• Unique and Unalterable Factory Programmed

64-Bit Identification Number (ROM ID)

• I2C Communications up to 1MHz

• Operating Range: 1.62V to 3.63V, -40°C to +85°C

• 8-Pin, 2mm x 2mm TDFN-EP Package

Typical Application Circuit

µC

VCC

VCC

GND

I2C

PORT

SDA

SCL DS28C16

DS28C16

VCC

GND

Click here to ask an associate for production status of specific part numbers.

DS28C16

I2C Low-Voltage SHA-3 Authenticator

Ordering Information appears at end of data sheet.

19-100753; Rev 3; 1/22

© 202

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