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參數(shù)資料
| 型號： | DS2704 |
| 廠商： | Maxim Integrated Products, Inc. |
| 元件分類： | DRAM |
| 英文描述： | 1280-Bit EEPROM with SHA-1 Authentication |
| 中文描述： | 1280位EEPROM，帶有SHA-1認證 |
| 文件頁數(shù)： | 1/18頁 |
| 文件大?。?/td> | 237K |
| 代理商： | DS2704 |
1 of 18
011206
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.
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 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.
APPLICATION EXAMPLE
Li+
Safety
Circuit
DS2704
PACK+
THM
DATA
PACK-
V
DD
DQ
V
SS
150
4.7V
0.01 F
150
ORDERING INFORMATION
PART
DS2704G+
DS2704G+T&R
DS2704W
PIN CONFIGURATION
DQ
1
3
2
6
4
5
VSS
NC
NC
NC
VDD
3mm × 3mm TDFN
(TOP VIEW
PADS ON BOTTOM)
Top Side A1 Mark
A
1.98 mm
1.73
B
C
1
2
3
UCSP (FUTURE AVAILABILITY)
(TOP VIEW
BALLS 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 V
DD
as Low as 2.5V
Tiny Chip-Scale UCSP and 3mm x 3mm TDFN
Packaging (Pb-free)
TEMP RANGE
-20 C to +70 C
-20 C to +70 C
-20 C to +70 C
PIN-PACKAGE
6-TDFN
DS2704G+ on Tape-and-Reel
Bare Die
DS2704
1280-Bit EEPROM with SHA-1 Authentication
www.maxim-ic.com
+ Denotes lead-free package.
1-Wire is a registered trademark of Dallas Semiconductor.
相關PDF資料 |
PDF描述 |
|---|---|
| DS2704W | 1280-Bit EEPROM with SHA-1 Authentication |
| DS2705 | SHA-1 Authentication Master |
| DS2705U | SHA-1 Authentication Master |
| DS2705UT | SHA-1 Authentication Master |
| DS2745 | Low-Cost I2C Battery Monitor |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| DS2704-500-WAFER | 功能描述:電可擦除可編程只讀存儲器 RoHS:否 制造商:Atmel 存儲容量:2 Kbit 組織:256 B x 8 數(shù)據(jù)保留:100 yr 最大時鐘頻率:1000 KHz 最大工作電流:6 uA 工作電源電壓:1.7 V to 5.5 V 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:SOIC-8 |
| DS2704E+ | 制造商:Maxim Integrated Products 功能描述:1024 BIT MEM W/SHA-1 AUTH L/F - Rail/Tube |
| DS2704G+ | 功能描述:電可擦除可編程只讀存儲器 1280-Bit 電可擦除可編程只讀存儲器 w/SHA-1 Authent RoHS:否 制造商:Atmel 存儲容量:2 Kbit 組織:256 B x 8 數(shù)據(jù)保留:100 yr 最大時鐘頻率:1000 KHz 最大工作電流:6 uA 工作電源電壓:1.7 V to 5.5 V 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:SOIC-8 |
| DS2704G+T&R | 制造商:Maxim Integrated Products 功能描述:EEPROM SERL-1WIRE 1.25KBIT 5PAGES X 32 3.3V/5V 6TDFN EP - Tape and Reel 制造商:Maxim Integrated Products 功能描述:IC EEPROM 1.25KBIT 6TDFN 制造商:Maxim Integrated Products 功能描述:EEPROM 1280-Bit EEPROM w/SHA-1 Authent |
| DS2704G+T&R | 功能描述:電可擦除可編程只讀存儲器 1280-Bit 電可擦除可編程只讀存儲器 w/SHA-1 Authent RoHS:否 制造商:Atmel 存儲容量:2 Kbit 組織:256 B x 8 數(shù)據(jù)保留:100 yr 最大時鐘頻率:1000 KHz 最大工作電流:6 uA 工作電源電壓:1.7 V to 5.5 V 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:SOIC-8 |
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