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DS2704

Maxim Integrated Products
Part Number DS2704
Manufacturer Maxim Integrated Products
Description 1280-Bit EEPROM
Published Sep 21, 2007
Detailed Description www.DataSheet4U.com DS2704 1280-Bit EEPROM with SHA-1 Authentication www.maxim-ic.com GENERAL DESCRIPTION The DS2704 p...
Datasheet PDF File DS2704 PDF File

DS2704
DS2704


Overview
www.
DataSheet4U.
com DS2704 1280-Bit EEPROM with SHA-1 Authentication www.
maxim-ic.
com GENERAL DESCRIPTION The DS2704 provides 1280 bits of EEPROM data storage and a Secure Hash Algorithm (SHA) engine.
The Dallas 1-WireÒ interface enables serial communication on a single battery contact and the 64-bit unique serial number allows multidrop networking and identification of individual devices.
The 1280-bit memory is organized as 5 pages of 32 bytes each and supports storage of battery cell characteristics, charging voltage, current, and temperature parameters, as well as battery pack manufacturing data.
The EEPROM pages are in circuit rewritable and can be individually locked to write protect data.
The DS2704 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 provides a robust cryptographic solution to ensure battery packs or other peripherals have been manufactured by authorized sources.
The DS2704 processes a host transmitted challenge and the 64bit secret key stored on chip to produce a 160-bit response for transmission back to the host.
The secret key is never transmitted between the battery and the host.
PIN CONFIGURATION VDD NC NC 1 6 DQ VSS NC 2 5 3 4 3mm × 3mm TDFN (TOP VIEW ¾PADS ON BOTTOM) Top Side A1 Mark 1 A B C 1.
98 mm 1.
73 2 3 APPLICATION EXAMPLE PACK+ 150W V DD DQ UCSP (FUTURE AVAILABILITY) (TOP VIEW ¾BALLS ON BOTTOM) 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) DATA 150W DS2704 VSS 0.
01mF 4.
7V THM PACK- Li+ Safety Circuit § § ORDERING INFORMATION PART DS2704G+ DS2704G+T&R DS2704W TEMP RANGE -20°C to +70°C -20°C to +70°...


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