SHA-1 Coprocessor with EEPROM Erasable Programmable Read-Only memory DS2460S+T&R
GENERAL DESCRIPTION
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.
APPLICATIONS
License Management
Secure Feature Control
System Authentication
Clone Prevention
Door Locks
Utility Meters
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
Packaging and transportation instructions
- According to the standard export packaging.
Customers can choose from cartons, wooden cases and wooden pallets according to their own requirements.
Q&A
1. How to obtain the price?
We usually quote within 24 hours after receiving your inquiry (except weekends and holidays). If you are in urgent need of a price, please send us an email or contact us in any other way so that we can provide you with a quotation.
2. What is your delivery time?
This depends on the quantity of the order and the season in which you place the order. Usually, we can ship the goods within 7 to 15 days (for small batches), and for large batches, it takes about 30 days.
3. What are your payment terms?
Factory price, 30% deposit, 70%T/T payment before shipment.
4. What is the mode of transportation?
It can be transported by sea, air or express delivery (EMS, UPS, DHL, TNT, FEDEX, etc.). Please confirm with us before placing an order.
5. How do you help our business establish a long-term and good relationship?
We maintain good quality and competitive prices to ensure that our customers benefit.
2. We respect every customer as our friend. We do business with them sincerely and make friends with them, no matter where they come from.
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SHA-1 896bit EEPROM IC Electrically Erasable Read Only Memory DS2460S+T&R Images
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