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DS2460SR

更新时间： 2024-02-12 13:04:16

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
9页	211K
描述
SHA-1 Coprocessor with EEPROMAbridged Data Sheet

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DS2460SR 技术参数

是否无铅：	不含铅	是否Rohs认证：	符合
生命周期：	Active	零件包装代码：	SOIC
包装说明：	SOP, SOP8,.25	针数：	8
Reach Compliance Code：	compliant	ECCN代码：	EAR99
HTS代码：	8542.31.00.01	Factory Lead Time：	6 weeks
风险等级：	1.3	JESD-30 代码：	R-PDSO-G8
JESD-609代码：	e3	长度：	4.9 mm
湿度敏感等级：	1	端子数量：	8
最高工作温度：	85 °C	最低工作温度：	-40 °C
封装主体材料：	PLASTIC/EPOXY	封装代码：	SOP
封装等效代码：	SOP8,.25	封装形状：	RECTANGULAR
封装形式：	SMALL OUTLINE	峰值回流温度（摄氏度）：	260
电源：	3/5 V	认证状态：	Not Qualified
座面最大高度：	1.75 mm	子类别：	Other Microprocessor ICs
最大压摆率：	0.5 mA	最大供电电压：	5.5 V
最小供电电压：	2.7 V	表面贴装：	YES
技术：	CMOS	温度等级：	INDUSTRIAL
端子面层：	Matte Tin (Sn)	端子形式：	GULL WING
端子节距：	1.27 mm	端子位置：	DUAL
处于峰值回流温度下的最长时间：	NOT SPECIFIED	宽度：	3.9 mm
uPs/uCs/外围集成电路类型：	MICROPROCESSOR CIRCUIT	Base Number Matches：	1

DS2460SR 数据手册

3/10

Abridged Data Sheet

DS2460

SHA-1 Coprocessor with EEPROM

www.maxim-ic.com

GENERAL DESCRIPTION

FEATURES

The DS2460 SHA-1 Coprocessor with EEPROM is a

hardware implementation of the ISO/IEC 10118-3

Secure Hash Algorithm (SHA-1), eliminating the need

to develop software to perform the complex SHA

computation required for authenticating SHA devices

and for performing the validation of digitally signed

service data. The DS2460 communicates with a

microcontroller through the popular I²C interface.

Applications include hosts of access control and

electronic payment systems for token authentication

and service data validation as well as generation of

one-time-use encryption keys for short message

encryption and decryption for messages not exceed-

ing the length of a SHA-1 result, which is 20 bytes.

Dedicated Hardware-Accelerated SHA Engine

for Generating SHA-1 MACs

112 Bytes User EEPROM for Storing End

Equipment Property Data

I²C Host Interface, Supports 100kHz and 400kHz

Communication Speeds

Three Address Inputs for I²C Address

Assignment

Single-Byte to 8-Byte EEPROM Write

Sequences

64-Bit Unique Registration Number

EEPROM Endurance: 200k Cycles per 8-Byte

Block at 25°C

10ms max EEPROM Write Cycle

Wide Operating Range: 2.7V to 5.5V,

-40°C to +85°C

APPLICATIONS

License Management

Secure Feature Control

System Authentication

Clone Prevention

Door Locks

±4kV IEC 1000-4-2 ESD Protection Level on All

Pins

8-Pin SO (150 mils) Package

ORDERING INFORMATION

PART

DS2460S

Utility Meters

TEMP RANGE

-40°C to +85°C

PIN-PACKAGE

8 SO (150 mils)

DS2460S/T&R

DS2460S+

TYPICAL OPERATING CIRCUIT

DS2460S+T&R

V_CC

+Denotes a lead(Pb)-free/RoHS-compliant package.

R_P

V_CC

Request full data sheet at:

www.maxim-ic.com/fullds/DS2460

SDA

SCL

V_CC

µC

SDA

SCL

AD0

AD1

AD2

PIN CONFIGURATION

GND

AD0

AD1

AD2

GND

V_CC

GND

SCL

SDA

N.C.

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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