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參數(shù)資料
| 型號(hào)： | DS1425 |
| 英文描述： | Multi iButton |
| 中文描述： | 多存儲(chǔ)器區(qū)iButton |
| 文件頁數(shù)： | 2/2頁 |
| 文件大?。?/td> | 19K |
| 代理商： | DS1425 |
DS1425
021798 2/2
If the DS1425 is presented with a valid password from
the host application, the contents of the secure data will
be returned. However, if the DS1425 is presented with
an invalid password, the on–board intelligent response
generator will return what seems to be a normal
response, but is not. The false response will be unique
to the false access.
By using seemingly random data in both the password
and secure data fields, and by generating many false
accesses for each valid access, even sophisticated
attackers are defeated.
DS1425 MULTI iButton ORGANIZATION
Figure 1
8-BIT CRC CODE
48-BIT SERIAL NUMBER
10000010
FAMILY CODE 82H
Scratchpad
512 bits
Secure Data 0
384 bits
Secure Data 1
384 bits
Secure Data 2
384 bits
64 bits
64 bits
ID 1
Password 1
64 bits
64 bits
ID 2
Password 2
Secure
Key 0
Secure
Key 2
64 bits
64 bits
ID 0
Password 0
Secure
Key 1
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| DS1427 | Time iButton |
| DS1481 | 1.Wire Bus Master with Overdrive |
| DS1481S | 1?Wire Bus Master with Overdrive |
| DS1482 | 1-Wire Level Shifter and Line Driver with Load Sensor |
| DS1482S | 1-Wire Level Shifter and Line Driver with Load Sensor |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| DS1425L-F5 | 制造商:Maxim Integrated Products 功能描述: |
| DS1427 | 制造商:DALLAS 制造商全稱:Dallas Semiconductor 功能描述:Time iButton |
| DS1427L-F5 | 功能描述:iButton RoHS:否 存儲(chǔ)類型:SRAM 存儲(chǔ)容量:512 B 組織: 工作電源電壓:3 V to 5.25 V 接口類型:1-Wire 最大工作溫度:+ 85 C 尺寸:17.35 mm x 5.89 mm 封裝 / 箱體:F5 MicroCan 制造商:Maxim Integrated |
| DS14285 | 功能描述:實(shí)時(shí)時(shí)鐘 RoHS:否 制造商:Microchip Technology 功能:Clock, Calendar. Alarm RTC 總線接口:I2C 日期格式:DW:DM:M:Y 時(shí)間格式:HH:MM:SS RTC 存儲(chǔ)容量:64 B 電源電壓-最大:5.5 V 電源電壓-最小:1.8 V 最大工作溫度:+ 85 C 最小工作溫度: 安裝風(fēng)格:Through Hole 封裝 / 箱體:PDIP-8 封裝:Tube |
| DS14285_05 | 制造商:DALLAS 制造商全稱:Dallas Semiconductor 功能描述:Real-Time Clock with NV RAM |
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