Datasheet > 存储 > EEPROM> DS2432

DS2432

更新时间： 2024-09-12 22:50:51

品牌	Logo	应用领域
达拉斯 - DALLAS		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
30页	166K
描述
1k-Bit Protected 1-Wire EEPROM with SHA-1 Engine

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中文翻译

获取价格

数据手册

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DS2432 数据手册

Preliminary

DS2432

1k-Bit Protected 1-Wire^™

EEPROM with SHA-1 Engine

www.dalsemi.com

FEATURES

PIN ASSIGNMENT

ꢀ 1128 bits of 5V EEPROM memory parti-

tioned into four pages of 256 bits, a 64-bit

write-only secret and up to 5 general purpose

read/write registers

ꢀ On-chip 512-bit SHA-1 engine to compute

160-bit Message Authentication Codes

(MAC) and to generate secrets

TSOC (150mil)

GND

1-WIRE

ꢀ Write access requires knowledge of the secret

and the capability of computing and transmit-

ting a 160-bit MAC as authorization

top view

ꢀ Secret and data memory can be write-pro-

tected (all or page 0 only) or put in EPROM-

emulation mode (“write to 0”, page 1)

ꢀ Unique, factory-lasered and tested 64-bit reg-

istration number assures absolute traceability

because no two parts are alike

top view

side view

See www.dalsemi.com for mechanical

specifications of packages.

ꢀ Built-in multidrop controller ensures compati-

bility with other 1-Wire net products

ꢀ Reduces control, address, data and power to a

single data pin

ꢀ Directly connects to a single port pin of a mi-

croprocessor and communicates at up to 16.3k

bits per second

ORDERING INFORMATION

DS2432P

6-lead TSOC package

DS2432P/T&R Tape & Reel DS2432P

DS2432X Flipchip package, tape & reel

ꢀ Overdrive mode boosts communication speed

to 142k bits per second

ꢀ Low cost 6-lead TSOC surface mount pack-

age, or solder-bumped Flipchip package

ꢀ Reads and writes over a wide voltage range of

2.8V to 5.25V from -40°C to +85°C

DESCRIPTION

The DS2432 combines 1024 bits of EEPROM, a 64-bit secret, an 8-byte register/control page with up to 5

user read/write bytes, a 512-bit SHA-1 engine and a fully-featured 1-Wire interface in a single chip. Each

DS2432 has its own 64-bit ROM registration number that is factory lasered into the chip to provide a

guaranteed unique identity for absolute traceability. Data is transferred serially via the 1-Wire protocol,

which requires only a single data lead and a ground return. The DS2432 has an additional memory area

called the scratchpad that acts as a buffer when writing to the main memory, the register page or when

installing a new secret. Data is first written to the scratchpad from where it can be read back. After the

data has been verified, a copy scratchpad command will transfer the data to its final memory location,

provided that the DS2432 receives a matching 160-Bit MAC. The computation of the MAC involves the

secret and additional data stored in the DS2432 including the device’s registration number. Only a new

secret can be loaded without providing a MAC. The SHA-1 engine can also be activated to compute

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中文翻译

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与DS2432相关器件

型号	品牌	获取价格	描述	数据表
DS2432_12	MAXIM	获取价格	1Kb Protected 1-Wire EEPROM with SHA-1 Engine
DS2432P	MAXIM	获取价格	1Kb Protected 1-Wire EEPROM with SHA-1 Engine
DS2432P	DALLAS	获取价格	1k-Bit Protected 1-Wire EEPROM with SHA-1 Engine
DS2432P R	MAXIM	获取价格	1Kb Protected 1-Wire EEPROM with SHA-1 Engine
DS2432P T	MAXIM	获取价格	1Kb Protected 1-Wire EEPROM with SHA-1 Engine
DS2432P/T&R	DALLAS	获取价格	EEPROM, 1KX1, Serial, CMOS, PDSO6, 0.150 INCH, TSOC-6
DS2432P+	MAXIM	获取价格	1Kb Protected 1-Wire EEPROM with SHA-1 Engine
DS2432P+R	MAXIM	获取价格	1Kb Protected 1-Wire EEPROM with SHA-1 Engine
DS2432P+T	MAXIM	获取价格	1Kb Protected 1-Wire EEPROM with SHA-1 Engine
DS2432P+T&R	MAXIM	获取价格	EEPROM, 1KX1, Serial, CMOS, PDSO6, 0.150 INCH, ROHS COMPLIANT, TSOC-6

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