GENERAL DESCRIPTION

The DS2704 provides 1280 bits of EEPROM data storage and a Secure Hash Algorithm (SHA) engine. The Dallas 1-Wire
interface enables serial communication on a single battery contact and the 64-bit unique serial number allows multidrop networking and identification of individual devices.

FEATURES

● Secure Challenge and Response Authentication Using the SHA-1 Algorithm

● Five Lockable 32-Byte Pages of EEPROM

● Dallas 1-Wire Interface with Standard and Overdrive Communications Speeds

● Unique 64-Bit Serial Number

● Compatible with DS2502 Memory Map and Read Function Command

● Operates with VDD as Low as 2.5V

● Tiny Chip-Scale UCSP and 3mm x 3mm TDFN Packaging (Pb-free)