MultiKey Chip

Overview

Technical Documents

Ordering Info

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Status

Active: In Production.

Description

The DS1205S MultiKey Chip is an enhanced version of the DS1204U Electronic Key which has both a standard 3-wire interface (data, clock, and reset) and a 1-Wire® interface. The DS1205S MultiKey has three secure read/write subkeys which are each 384 bits in length. In addition, there is a 512-bit read/write scratchpad which can be used as a non-secure data area or as a holding register for data transfer to one of the three subkeys. Each subkey within the part is uniquely addressable on byte boundaries.

Data Sheet

Download	Rev 1	(PDF, 456kB)
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Key Features

Three secure read/write data partitions of 384 bits each
One non-secure read/write data partition of 512 bits
Secure data cannot be deciphered by reverse engineering
Guaranteed unique, 48-bit, laser etched serial number
64-bit password and I.D. fields provide positive identification and security for each secure data partition
Maximum data transfer rate of 2 million bits/second
Low-power CMOS circuitry
Access via 3-wire or 1-Wire interface
Underwriters Laboratories (UL) Recognized

Applications/Uses

Financial Transactions
Proprietary Data
Secure Personnel Areas
Systems Access Control

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Information Index

Overview		Technical Documents		Ordering Info		Related Products
Description Key Features Applications/Uses Key Specifications Diagram Notes and Comments		Data Sheet Application Notes Evaluation Kits Product Guides Reliability Reports Software/Models		Price and Availability Samples Buy Online Package Information Lead-Free Information		Similar Products by Function Similar Products by Application Evaluation Kits Products with Similar Part Numbers Products Used With This

Rev 1; 1998-02-17
This page last modified: 2007-06-18