DS1205S数据手册ADI中文资料规格书

描述 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.

特性 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

应用 Application

• 金融交易
• 专用数据
• 安全人员区域
• 系统接入控制