參數(shù)資料
型號： DS1904
英文描述： RTC iButton
文件頁數(shù)： 3/12頁
文件大?。?/td> 72K
代理商： DS1904
DS1904
3 of 12
HIERARCHICAL STRUCTURE FOR 1-WIRE PROTOCOL
Figure 2
DS1904
Available
Commands
Command
Level
Data Fields
Affected
1-Wire Bus
Other
Devices
Bus
Master
DS1904
Function
(see Figure
Write
Read
RTC Counter, Device
RTC Counter, Device
Read
Match
Search
Skip
64-bit
64-bit
64-bit
N/A
1-Wire ROM
Commands (see Figure
64-BIT LASERED ROM
Figure 3
MSB
LSB
8-Bit CRC Code
48-Bit Serial Number
8-Bit Family Code (24h)
MSB
LSB
MSB
LSB
MSB
LSB
1-WIRE CRC GENERATOR
Figure 4
R
X
2
X
1
X
0
X
8
X
7
X
6
X
5
X
4
X
3
8TH
STAGE
7TH
STAGE
6TH
STAGE
5TH
STAGE
4TH
STAGE
3RD
STAGE
2ND
STAGE
1ST
STAGE
S
INPUT DATA
Polynomial = X
8
+ X
5
+ X
4
+ 1
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
DS1904_11 制造商:MAXIM 制造商全稱:Maxim Integrated Products 功能描述:Real-Time Clock/calendar in binary format RTC iButton Over 10 years of operation
DS1904L-F5 功能描述:iButton RoHS:否 存儲類型:SRAM 存儲容量: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
DS1904L-F5# 功能描述:iButton RTC iButton RoHS:否 存儲類型:SRAM 存儲容量: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
DS1904L-F5+ 功能描述:iButton RoHS:否 存儲類型:SRAM 存儲容量: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
DS1920 制造商:DALLAS 制造商全稱:Dallas Semiconductor 功能描述:Temperature iButton
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