DS2703
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DS2703

SHA-1 Battery Pack Authentication IC

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SHA-1 Battery-Pack Authentication IC Provides a Robust Cryptographic Solution to Ensure the Authenticity of Li+ Battery Packs for Portable Devices

Info: : PRODUCTION tooltip
Info: : PRODUCTION tooltip
Part Details
Part Models 2
1ku List Price Starting From $1.78
Features
  • Secure Challenge and Response Authentication Using the SHA-1 Algorithm
  • Directly Powered by the Dallas 1-Wire Interface with 16kbps Standard and 143kbps Overdrive Communication Modes
  • Unique 64-Bit Serial Number
  • Thermistor Multiplexer
  • Operates with VPULLUP as Low as 2.7V
  • Pb-Free 8-Pin µMAX® or 2mm x 3mm TDFN Package
Additional Details
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The DS2703 provides a robust cryptographic solution to ensure the authenticity of Li-Ion battery packs for cell phone, PDA, and portable computing devices. The DS2703 employs the Secure Hash Algorithm (SHA-1) specified in the Federal Information publication 180-1 and 180-2, and ISO/IEC 10118-3. SHA-1 is designed for authentication—just what is required for identifying battery packs manufactured by authorized sources.

The device's SHA-1 engine processes a host transmitted challenge using its stored 64-bit secret key and unique 64-bit ROM ID to produce a 160-bit response word for transmission back to the host. The secret key is securely stored on-chip and never transmitted between the battery and the host. A DS2703-based system produces a high degree of authentication security between a host system and its removable battery or other peripheral devices.

The Thermistor Multiplexer feature allows a three contact battery pack configuration to support data and thermistor functions. When activated through 1-Wire® command, the THM pin presents the thermistor impedance on the data contact and disconnects internal loading from the node.

Applications

  • 2.5G/3G Wireless Handsets
  • Digital Still and Video Cameras
  • Handheld or Notebook Computers and Terminals
  • PDAs
Part Models 2
1ku List Price Starting From $1.78

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Documentation

Documentation

Part Model Pin/Package Drawing Documentation CAD Symbols, Footprints, and 3D Models
DS2703U+
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DS2703U+T&R
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Product Lifecycle

PCN

Sep 19, 2018

- 1753N

ASSEMBLY

DS2703U+

PRODUCTION

DS2703U+T&R

PRODUCTION

Filter by Model

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Part Models

Product Lifecycle

PCN

Sep 19, 2018

- 1753N

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ASSEMBLY

DS2703U+

PRODUCTION

DS2703U+T&R

PRODUCTION

Software & Part Ecosystem

Software & Part Ecosystem

Evaluation Kit

Evaluation Kits 1

DS2703EVKIT

Evaluation Kit for the DS2703

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DS2703EVKIT

Evaluation Kit for the DS2703

Evaluation Kit for the DS2703

Features and Benefits

  • Demonstrates the capabilities of the DS2703 Battery Pack Authentication IC With SHA-1 Security, including:
    • Secure Challenge and Response Authentication using the SHA-1 Algorithm
    • Identification
    • Thermistor Multiplexor
  • Interfaces to the USB Port of a PC running Windows XP® or older operating system that supports USB operation

Product Detail

The DS2703 evaluation kit (EV kit) makes performance evaluation, software development, and prototyping with the DS2703 Battery Pack Authentication IC with SHA-1 Security easy. The evaluation board interfaces to a PC through a DS9123O USB Adapter and RJ-11 cable connection. All related data sheets along with the evaluation software can be found on our website at www.maximintegrated.com.

The DS2703 EV kit evaluation software gives the user complete control of all SHA-1 functions of the DS2703 as well as the various other commands.

The evaluation board circuit is designed to provide the DS2703 with a stable environment to perform SHA-1 Calculations, program the DS2703, and make thermistor measurements. Kit demonstration boards will vary as they are improved upon over time. For information on the demonstration board circuits refer to our website at www.maximintegrated.com.

Applications

  • 2.5G/3G Wireless Handsets
  • Digital Still and Video Cameras
  • Handheld or Notebook Computers and Terminals
  • PDAs

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