參數(shù)資料
型號(hào): DS2432X
元件分類: DRAM
英文描述: 1k-Bit Protected 1-Wire EEPROM with SHA-1 Engine
中文描述: 經(jīng)銷商,保護(hù)與沙的1 - Wire EEPROM的位- 1引擎
文件頁數(shù): 13/30頁
文件大?。?/td> 165K
代理商: DS2432X
PRELIMINARY
Memory and SHA Functions Flow Chart
(continued)
Figure 7
DS2432
13 of 30
A5h
Read Auth.
Page
Bus Master TX
TA1 (T7:T0), TA2 (T15:T8)
Y
N
Y
N
Address
< 80h
N
Bus Master
RX “1”s
Master
TX Reset
Y
DS2432 sets Memory
Address = (T15:T0)
Master
TX Reset
Y
N
Bus Master RX CRC16
of Command, Address,
Data, and FFh Byte
DS2432
Increments
Address
Counter
Master
TX Reset
Master RX Data Byte
From Memory Address
N
Y
End
Of Page
N
Y
Master RX
one byte FFh
Master
TX Reset
Master
TX Reset
Y
N
DS2432 TX “1”
DS2432 TX “0”
N
Y
SHA Engine Computes
Message Authentication
Code of Secret, Data of
Selected Page, Device
Registration Number and
3-Byte Challenge
Bus Master RX 160-Bit
Message Auth. Code
Bus Master RX CRC16 of
Message Auth. Code
*
1-Wire idle high for power
Note
: Three bytes of the
scratchpad contents are taken
as a challenge to the DS2432.
The master may specify the
challenge or accept the current
scratchpad contents instead.
*
From Figure 7
5
th
Part
To Figure 7
5
Part
To Figure 7
7
th
Part
From Figure 7
7
Part
相關(guān)PDF資料
PDF描述
DS2432 1k-Bit Protected 1-Wire EEPROM with SHA-1 Engine(1K 位具有寫保護(hù)的1線EEPROM(帶SHA-1引擎))
DS2433 4k-Bit 1-Wire EEPROM
DS2433-Z01 4K-Bit 1-Wire EEPROM
DS2433S 4k-Bit 1-Wire EEPROM
DS2433T 4k-Bit 1-Wire EEPROM
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
DS2432X+ 功能描述:電可擦除可編程只讀存儲(chǔ)器 RoHS:否 制造商:Atmel 存儲(chǔ)容量:2 Kbit 組織:256 B x 8 數(shù)據(jù)保留:100 yr 最大時(shí)鐘頻率:1000 KHz 最大工作電流:6 uA 工作電源電壓:1.7 V to 5.5 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SOIC-8
DS2432X+U 制造商:Maxim Integrated Products 功能描述:1-W EEPROM 1KB W/SHA-1 UCSP PARTIAL - Rail/Tube
DS2432X-101-4D+T 制造商:Maxim Integrated Products 功能描述:1KB PROTECTED 1-WIRE EEPROM WITH SHA-1 ENGINE - Tape and Reel
DS2432X-S 功能描述:電可擦除可編程只讀存儲(chǔ)器 RoHS:否 制造商:Atmel 存儲(chǔ)容量:2 Kbit 組織:256 B x 8 數(shù)據(jù)保留:100 yr 最大時(shí)鐘頻率:1000 KHz 最大工作電流:6 uA 工作電源電壓:1.7 V to 5.5 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SOIC-8
DS2432X-S+ 制造商:Maxim Integrated Products 功能描述:1-W EEPROM 1KB W/SHA-1 UCSP 2.5K TR - Tape and Reel