Datasheet > DS2703

DS2703

更新时间： 2024-11-24 02:55:47

品牌	Logo	应用领域
美信 - MAXIM		电池
页数	文件大小	规格书
20页	375K
描述
SHA-1 Battery Pack SHA-1 Battery Pack

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DS2703 数据手册

DS2703

SHA-1 Battery Pack

Authentication IC

www.maxim-ic.com

GENERAL DESCRIPTION

FEATURES

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.

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 V_PULLUPas Low as 2.7V

Pb-Free 8-Pin μMAX^®or 2mm x 3mm TDFN

Package

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.

PIN CONFIGURATION

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.

TYPICAL OPERATING CIRCUIT

APPLICATIONS

2.5G/3G Wireless Handsets

PDAs

Handheld or Notebook Computers and Terminals

Digital Still and Video Cameras

ORDERING INFORMATION

PART

TEMP RANGE

PIN-PACKAGE

DS2703G+

2mm x 3mm TDFN

DS2703G+ on

Tape-and-Reel

-20°C to +70°C

DS2703G+T&R

DS2703U+

-20°C to +70°C

-20°C to +70°C μMAX-8

DS2703U+ on

Tape-and-Reel

DS2703U+T&R

-20°C to +70°C

1-Wire is a registered trademark of Dallas Semiconductor.

µMAX is a registered trademark of Maxim Integrated Products.

+ Denotes lead-free package.

Note: Some revisions of this device may incorporate deviations from published specifications known as errata. Multiple revisions of any device

may be simultaneously available through various sales channels. For information about device errata, click here: www.maxim-ic.com/errata.

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REV: 061307

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与DS2703相关器件

型号	品牌	获取价格	描述	数据表
DS2703G	MAXIM	获取价格	SHA-1 Battery Pack SHA-1 Battery Pack
DS2703G+	MAXIM	获取价格	Power Supply Support Circuit, Fixed, 1 Channel, PDSO8, LEAD FREE, TDFN-8
DS2703G+T&R	MAXIM	获取价格	Power Supply Support Circuit, Fixed, 1 Channel, PDSO8, LEAD FREE, TDFN-8
DS2703G-C1+T&R	MAXIM	获取价格	Power Supply Support Circuit
DS2703GTR	MAXIM	获取价格	SHA-1 Battery Pack SHA-1 Battery Pack
DS2703U	MAXIM	获取价格	Power Supply Support Circuit, Fixed, 1 Channel, PDSO8, MICRO, SOP-8
DS2703U	DALLAS	获取价格	SHA-1 Battery Pack Authentication IC
DS2703U/T&R	MAXIM	获取价格	Power Supply Support Circuit, Fixed, 1 Channel, PDSO8, MICRO, SOP-8
DS2703U+	DALLAS	获取价格	SHA-1 Battery Pack Authentication IC
DS2703U+R	DALLAS	获取价格	SHA-1 Battery Pack Authentication IC

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