Datasheet > DS28E22

DS28E22

更新时间： 2024-11-20 14:57:15

品牌	Logo	应用领域
亚德诺 - ADI		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
6页	861K
描述
内置1-Wire SHA-256和2Kb用户EEPROM的DeepCover安全认证方案

阅读下载

中文翻译

获取价格

数据手册

如果您发现信息不准确，欢迎纠错

DS28E22 数据手册

ABRIDGED DATA SHEET

Evaluation Kit

Available

Design

Resources

Tools

and Models

Support

Click here to ask an associate for production status of specific part numbers.

DeepCover Secure Authenticator with

1-Wire SHA-256 and 2Kb User EEPROM

DS28E22

General Description

DeepCover embedded security solutions cloak sensitive

Features

● Symmetric Key-Based Bidirectional Secure

data under multiple layers of advanced physical security to

provide the most secure key storage possible.

Authentication Model Based on SHA-256

● Dedicated Hardware-Accelerated SHA Engine for

The DeepCover Secure Authenticator (DS28E22) com-

bines crypto-strong, bidirectional, secure challenge-and-

response authentication functionality with an implemen-

tation based on the FIPS 180-3-specified Secure Hash

Algorithm (SHA-256). A 2Kb user-programmable EEPROM

array provides nonvolatile storage of application data and

additional protected memory holds a read-protected secret

for SHA-256 operations and settings for user memory

control. Each device has its own guaranteed unique 64-bit

ROM identification number (ROM ID) that is factory pro-

grammed into the chip. This unique ROM ID is used as a

fundamental input parameter for cryptographic operations

and also serves as an electronic serial number within

the application. A bidirectional security model enables

two-way authentication between a host system and slave-

embedded DS28E22. Slave-to-host authentication is used

by a host system to securely validate that an attached or

embedded DS28E22 is authentic. Host-to-slave authenti-

cation is used to protect DS28E22 user memory from being

modified by a nonauthentic host. The SHA-256 message

authentication code (MAC), which the DS28E22 gener-

ates, is computed from data in the user memory, an on-

chip secret, a host random challenge, and the 64-bit ROM

ID. The DS28E22 communicates over the single-contact

Generating SHA-256 MACs

● Strong Authentication with a High Bit Count, User-

Programmable Secret, and Input Challenge

● 2048 Bits of User EEPROM Partitioned Into 8 Pages

of 256 Bits

● User-Programmable and Irreversible EEPROM

Protection Modes Including Authentication, Write and

Read Protect, and OTP/EPROM Emulation

● Unique, Factory-Programmed 64-Bit Identification

Number

● Single-Contact 1-Wire Interface Communicates with

Host at Up to 76.9kbps

● Operating Range: 3.3V ±10%, -40NC to +85NC

● Low-Power 5µA (typ) Standby

● ±8kV Human Body Model ESD Protection (typ)

● 6-Pin TDFN, 6-Lead TSOC Packages

Typical Application Circuit

3.3V

1-Wire bus at overdrive speed. The communication fol-

lows the 1-Wire protocol with the ROM ID acting as node

address in the case of a multiple-device 1-Wire network.

= 1.1kΩ

MAXIMUM I C BUS CAPACITANCE 320pF

SDA

SCL

(I C PORT)

DS2465

µC

Applications

1-Wire LINE

SLPZ

●

Authentication of Network-Attached Appliances

Printer Cartridge ID/Authentication

DS28E22

Reference Design License Management

System Intellectual Property Protection

Sensor/Accessory Authentication and Calibration

Secure Feature Setting for Conﬁgurable Systems

Key Generation and Exchange for Cryptographic

Systems

Ordering Information appears at end of data sheet.

DeepCover and 1-Wire are registered trademarks of Maxim Integrated Products, Inc.

219-0020; Rev 3; 7/21

One Analog Way, Wilmington, MA 01887 U.S.A.

Tel: 781.329.4700

12 3 4 5 6

中文翻译

下载PDF

与DS28E22相关器件

型号	品牌	获取价格	描述	数据表
DS28E22_V01	MAXIM	获取价格	DeepCover Secure Authenticator with 1-Wire SHA-256 and 2Kb User EEPROM
DS28E22P	MAXIM	获取价格	1-Wire SHA-256 Secure Authenticator with 2Kb User EEPROM
DS28E22P+	MAXIM	获取价格	DeepCover Secure Authenticator with 1-Wire SHA-256 and 2Kb User EEPROM
DS28E22P+T	MAXIM	获取价格	DeepCover Secure Authenticator with 1-Wire SHA-256 and 2Kb User EEPROM
DS28E22Q	MAXIM	获取价格	1-Wire SHA-256 Secure Authenticator with 2Kb User EEPROM
DS28E22Q+T	MAXIM	获取价格	DeepCover Secure Authenticator with 1-Wire SHA-256 and 2Kb User EEPROM
DS28E25	MAXIM	获取价格	The DS28E25 combines crypto-strong
DS28E25	ADI	获取价格	内置1-Wire SHA-256和4Kb用户EEPROM的DeepCover安全认证方案
DS28E25_V01	MAXIM	获取价格	DeepCover Secure Authenticator with 1-Wire SHA-256 and 4Kb User EEPROM
DS28E25G+T	MAXIM	获取价格	1-Wire SHA-256 Secure Authenticator with 4Kb User EEPROM

与DS28E22相关文章

解析光耦仿真器：升级光耦合器技术的必要性
2024-11-18

23
英伟达新一代Blackwell GPU过热问题致交付延迟
2024-11-18

15
国产厂商思特威CMOS图像传感器芯片单月出货超1亿颗，技术创新引领行业发展
2024-11-14

45
台积电5nm和3nm产能利用率达100%，半导体行业景气度持续攀升
2024-11-14

44

产品中心

服务支持

精选活动

关于我们

帮助中心

DS28E22

DS28E22 数据手册

与DS28E22相关器件

与DS28E22相关文章

您还可以找

产品中心

服务支持

精选活动

关于我们

帮助中心

DS28E22

DS28E22 数据手册

与DS28E22相关器件

与DS28E22相关文章

您还可以找

您在本页遇到什么问题？