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參數(shù)資料
| 型號： | DS18B20Z |
| 元件分類： | 溫度傳感器 |
| 英文描述： | Programmable Resolution 1-Wire Digital Thermometer |
| 中文描述： | 可編程的1 - Wire數(shù)字溫度計 |
| 文件頁數(shù)： | 22/27頁 |
| 文件大?。?/td> | 391K |
| 代理商： | DS18B20Z |
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DS18B20
22 of 27
Related Application Notes
The following Application Notes can be applied to the DS18B20. These notes can be obtained from the
Dallas Semiconductor “Application Note Book,” via our website at
http://www.dalsemi.com/
.
Application Note 27: “Understanding and Using Cyclic Redundancy Checks with Dallas Semiconductor
Touch Memory Product”
Application Note 55: “Extending the Contact Range of Touch Memories”
Application Note 74: “Reading and Writing Touch Memories via Serial Interfaces”
Application Note 104: “Minimalist Temperature Control Demo”
Application Note 106: “Complex MicroLANs”
Application Note 108: “MicroLAN - In the Long Run”
Sample 1-Wire subroutines that can be used in conjunction with AN74 can be downloaded from the
website or our Anonymous FTP Site.
MEMORY FUNCTION EXAMPLE
Table 5
Example: Bus Master initiates temperature conversion, then reads temperature (parasite power assumed).
MASTER MODE
TX
RX
TX
TX
TX
TX
DATA (LSB FIRST)
Reset
Presence
55h
<64-bit ROM code>
44h
<I/O LINE HIGH>
COMMENTS
Reset pulse (480-960 μs).
Presence pulse.
Issue “Match ROM” command.
Issue address for DS18B20.
Issue “ Convert T” command.
I/O line is held high for at least a period of time greater
than t
conv
by bus master to allow conversion to complete.
Reset pulse.
Presence pulse.
Issue “Match ROM” command.
Issue address for DS18B20.
Issue “Read Scratchpad” command.
Read entire scratchpad plus CRC; the master now
recalculates the CRC of the eight data bytes received
from the scratchpad, compares the CRC calculated and
the CRC read. If they match, the master continues; if
not, this read operation is repeated.
Reset pulse.
Presence pulse, done.
TX
RX
TX
TX
TX
RX
Reset
Presence
55h
<64-bit ROM code>
BEh
<9 data bytes>
TX
RX
Reset
Presence
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| DS18S20Z | High Precision 1-Wire Digital Thermometer |
| DS1923 | Hygrochron Temperature/Humidity Logger iButton with 8kB Data Log Memory |
| DS1923-F5 | Hygrochron Temperature/Humidity Logger iButton with 8kB Data Log Memory |
| DS1990 | Serial Number iButton |
| DS1990A | Serial Number iButton |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| DS18B20Z/T&R | 制造商:Maxim Integrated Products 功能描述:HI RES MICROLAN DIG THERM 8-SOIC TR - Tape and Reel 制造商:Maxim Integrated Products 功能描述:IC THERM MICROLAN PROG-RES 8SOIC 制造商:Maxim Integrated Products 功能描述:Board Mount Temperature Sensors Prgmble Resolution 1-Wire Parasite Pwr |
| DS18B20Z/T&R | 功能描述:板上安裝溫度傳感器 Prgmble Resolution 1-Wire Parasite Pwr RoHS:否 制造商:Omron Electronics 輸出類型:Digital 配置: 準確性:+/- 1.5 C, +/- 3 C 溫度閾值: 數(shù)字輸出 - 總線接口:2-Wire, I2C, SMBus 電源電壓-最大:5.5 V 電源電壓-最小:4.5 V 最大工作溫度:+ 50 C 最小工作溫度:0 C 關(guān)閉: 安裝風格: 封裝 / 箱體: 設(shè)備功能:Temperature and Humidity Sensor |
| DS18B20Z+ | 功能描述:板上安裝溫度傳感器 Prgmble Resolution 1-Wire Parasite Pwr RoHS:否 制造商:Omron Electronics 輸出類型:Digital 配置: 準確性:+/- 1.5 C, +/- 3 C 溫度閾值: 數(shù)字輸出 - 總線接口:2-Wire, I2C, SMBus 電源電壓-最大:5.5 V 電源電壓-最小:4.5 V 最大工作溫度:+ 50 C 最小工作溫度:0 C 關(guān)閉: 安裝風格: 封裝 / 箱體: 設(shè)備功能:Temperature and Humidity Sensor |
| DS18B20Z+ | 制造商:Maxim Integrated Products 功能描述:SEMICONDUCTOR ((NW)) |
| DS18B20Z+T&R | 制造商:Maxim Integrated Products 功能描述:HI RES MICROLAN DIG THERM 8-SOIC TR 制造商:Maxim Integrated Products 功能描述:TEMP SENSOR DGTL SERL (1-WIRE) 8SOIC N - Tape and Reel 制造商:Maxim Integrated Products 功能描述:IC THERM MICROLAN PROG-RES 8SOIC 制造商:Maxim Integrated Products 功能描述:Board Mount Temperature Sensors Prgmble Resolution 1-Wire Parasite Pwr |
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