DS2460：SHA-1 Coprocessor with EEPROM _ BDTIC a Leading Distributor in China

DS2460：SHA-1 Coprocessor with EEPROM

SHA-1 Coprocessor with EEPROM

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

Key Features

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
±4kV IEC 1000-4-2 ESD Protection Level on All Pins
8-Pin SO (150 mils) Package

Applications/Uses

Clone Prevention
Door Locks
License Management
Secure Feature Control
System Authentication
Utility Meters

DataSheet

title	Download file
DS2460 Data Sheet	DS2460.pdf

Parametrics

Part Number	Memory Type	Memory Size	Bus Type	V_SUPPLY (V)	V_SUPPLY (V)	Package/Pins	Budgetary Price
Part Number	Memory Type	Memory Size	Bus Type	min	max	Package/Pins	See Notes
DS2460	EEPROM	112 Bytes	2-Wire I2C	2.7	5.5	SOIC(N)/8	$1.26 @1k

Design kits & evaluation modules

DSAUTHSK

Quality and Environmental Data

DS2460.pdf

Ordering Information

Part Number	Status	Recommended Replacement	Package	Temp	RoHS
DS2460S+	Active		SOIC(N),;8 pin;30.9 mm²	-40°C to +85°C	Lead Free
DS2460S+T&R	Active		SOIC(N),;8 pin;30.9 mm²	-40°C to +85°C	Lead Free

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