Product Highlights

The DS28E54 secure authenticator combines FIPS 202-

compliant secure hash algorithm (SHA-3) challenge and

response authentication with secured electrically

erasable programmable read-only memory (EEPROM).

The device provides a core set of cryptographic tools

derived from integrated blocks, including an SHA-3

engine, 2.25Kbit of secured user EEPROM, a

decrement-only counter, and a unique 64-bit ROM

identification number (ROM ID), all while remaining

reverse compatible to the DS2431/DS28E07.

The unique ROM ID is used as a fundamental input

parameter for cryptographic operations and serves as

an electronic serial number within the application.

The device communicates over the single-contact 1-

Wire? bus.

The communication follows the 1-Wire protocol, with the

ROM ID acting as the node address in the case of a

multidevice 1-Wire network.

Benefits and Features

? DS2431/DS28E07 Reverse Compatibility

? 2.25Kbits of EEPROM Memory Partitioned into

11 User Pages of 256 Bits (First Five Pages

Compatible)

? 64-Bit Scratchpad Buffer for Compatible Secure

Writing with Offset and Individual Addressing

? ±8kV HBM ESD Protection (typ) for IO Pin

? Efficient Secure Hash Algorithm to Authenticate

Peripherals

? FIPS 202-Compliant SHA-3 Algorithm for

Challenge/Response Authentication and Device

Disable

? FIPS 198-Compliant Keyed-Hash Message

Authentication Code (HMAC)

? Optional HMAC SHA3-256 Authenticated Write

Protection of EEPROM

? Supplemental Features for Easy Integration into End

Applications

? 17-Bit, One-Time Settable, Nonvolatile

Decrement-Only Counter with Authenticated

Read

? Secure Storage for Secret

? 2.25KBits of Secure EEPROM for User Data and

Secret

? Unique and Unalterable, Factory-Programmed,

64-Bit Identification Number (ROM ID)

? Advanced 1-Wire Protocol Minimizes Interface to

Single Contact

? Standard and Overdrive Communication Speed

? Internal Parasite Power Capacitor

? Operating Range: 2.8V to 5.25V, -40°C to +85°C

? SFN, SFN 6x6, TDFN-EP, TSOC, TO92

Packages

? 4.0μA (typ) Input Load Current

Key Applications

? Medical Tools/Accessories Authentication and

Calibration

? Accessory and Peripheral Secure Authentication

? Battery Authentication and Charge Cycle Tracking

? Analog Sensor Calibration