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DS1964S Datasheet Deepcover Secure Authenticator Ibutton

Manufacturer: Maxim Integrated (now Analog Devices)

Overview: DS1964S DeepCover Secure Authenticator iButton with SHA-256 General.

General Description

DeepCover® embedded security solutions cloak sensitive data under multiple layers of advanced physical security to provide the most secure key storage possible.

The DeepCover Secure Authenticator iButton® (DS1964S) combines crypto-strong bidirectional secure challenge-and-response authentication functionality with an implementation based on the FIPS 180-3-specified Secure Hash Algorithm (SHA-256).

A 512-bit user-programmable EEPROM array provides nonvolatile storage of application data.

Key Features

  • Symmetric-Key-Based Bidirectional Secure Authentication Model Based on SHA-256.
  • Strong Authentication with a High-Bit-Count User-Programmable Secret and Input Challenge.
  • 512 Bits of User EEPROM Partitioned Into Two Pages of 256 Bits.
  • User-Programmable and Irreversible EEPROM Protection Modes Including Write and Read Protect and OTP/EPROM Emulation.
  • Unique Factory-Programmed, 64-Bit Identification Number.
  • Single-Contact 1-Wire Interface.

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DS1964S Distributor