Datasheet > DS2704G+T&R

DS2704G+T&R

更新时间： 2024-11-05 02:50:59

品牌	Logo	应用领域
美信 - MAXIM		可编程只读存储器电动程控只读存储器电可擦编程只读存储器
页数	文件大小	规格书
18页	227K
描述
1280-Bit EEPROM with SHA-1 Authentication

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DS2704G+T&R 数据手册

DS2704

1280-Bit EEPROM with SHA-1 Authentication

www.maxim-ic.com

GENERAL DESCRIPTION

PIN CONFIGURATION

The DS2704 provides 1280 bits of EEPROM data

storage and a Secure Hash Algorithm (SHA) engine.

The Dallas 1-Wireꢀ interface enables serial

communication on a single battery contact and the

64-bit unique serial number allows multidrop

networking and identification of individual devices.

VDD

VSS

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.

3mm × 3mm TDFN

(TOP VIEWZPADS ON BOTTOM)

Top Side A1 Mark

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 64-

bit 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.

1.73

1.98 mm

UCSP (FUTURE AVAILABILITY)

(TOP VIEWZBALLS ON BOTTOM)

APPLICATION EXAMPLE

PACK+

FEATURES

Cꢀ Secure Challenge and Response Authentication

150ꢀ

Using the SHA-1 Algorithm

Cꢀ Five Lockable 32-Byte Pages of EEPROM

V_DD

DATA

Cꢀ Dallas 1-Wire Interface with Standard and

DS2704

150ꢀ

Overdrive Communications Speeds

THM

Cꢀ Unique 64-Bit Serial Number

V_SS

Cꢀ Compatible with DS2502 Memory Map and Read

0.01ꢁF

4.7V

Function Command

Li+

Cꢀ Operates with V_DDas Low as 2.5V

Safety

Cꢀ Tiny Chip-Scale UCSP and 3mm x 3mm TDFN

PACK-

Circuit

Packaging (Pb-free)

ORDERING INFORMATION

PART

TEMP RANGE

-20LC to +70LC

PIN-PACKAGE

6-TDFN

DS2704G+ on Tape-and-Reel

DS2704G+

DS2704G+T&R

DS2704W

Bare Die

+ Denotes lead-free package.

1-Wire is a registered trademark of Dallas Semiconductor.

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011206

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与DS2704G+T&R相关器件

型号	品牌	获取价格	描述	数据表
DS2704G+TR	MAXIM	获取价格	1280-Bit EEPROM with SHA-1 Authentication
DS2704W	MAXIM	获取价格	1280-Bit EEPROM with SHA-1 Authentication
DS2705	DALLAS	获取价格	SHA-1 Authentication Master
DS2705_07	DALLAS	获取价格	SHA-1 Authentication Master
DS2705U	DALLAS	获取价格	SHA-1 Authentication Master
DS2705U+	DALLAS	获取价格	SHA-1 Authentication Master
DS2705U+/T&R	MAXIM	获取价格	Consumer Circuit, PDSO8, LEAD FREE, MICRO MAX PACKAGE-8
DS2705U+/T&R	DALLAS	获取价格	SHA-1 Authentication Master
DS2705U+/TR	DALLAS	获取价格	SHA-1 Authentication Master
DS2705UT	DALLAS	获取价格	SHA-1 Authentication Master