GENERAL DESCRIPTION

The DS2705 provides the master side of a Secure Hash Algorithm (SHA) based token authentication scheme. Hardware-based SHA authentication allows for security without the added cost and complexity of a microprocessor-based system.

FEATURES

■ Initiates Challenge-and-Response

   Authentication based on the SHA-1 Algorithm

■ Dallas 1-Wire Master/Slave Interface Operates

   at Standard and Overdrive Speeds

■ Input and Output pins for Initiating Challenge

   and Reporting Authentication Pass/Fail

■ Programmable Configuration

■ Operates from 2.5V to 5.5V Supply

■ Tiny μMAX Package (Pb-Free)

APPLICATIONS

   Digital Cameras

   Portable DVD and Media Players

   Cradle and Accessory Chargers

   Cell Phones/Smartphones