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參數(shù)資料
| 型號： | DS1821 |
| 元件分類： | 溫度傳感器 |
| 英文描述： | Programmable Digital Thermostat |
| 文件頁數(shù)： | 6/16頁 |
| 文件大?。?/td> | 570K |
| 代理商： | DS1821 |
DS1821
6 of 16
PROGRAMMING COMMAND FUNCTIONS
The command set for the DS1821 as shown in Table 2 is as follows:
Read Temperature [AAh]
This command reads the contents of the register which contains the last temperature conversion result.
Write TH [01h]
This command writes to the TH (HIGH TEMPERATURE) register. After issuing this command, the user
writes 8 bits of data to the TH register.
Write TL [02h]
This command writes to the TL (LOW TEMPERATURE) register. After issuing this command, the user
writes 8 bits of data to the TL register.
Read TH [A1h]
This command reads the value of the TH (HIGH TEMPERATURE) register. After issuing this command,
the user reads the 8 bits of data present in the TH register.
Read TL [A2h]
This command reads the value of the TL (LOW TEMPERATURE) register. After issuing this command,
the user reads the 8 bits of data present in the TL register.
Write Status [0Ch]
This command writes to the status register. This would be used for clearing the values of the THF and
TLF flags, and setting the T/
R
, POL and 1SHOT bits. After issuing this command, the user writes the 8-
bit data into the register.
Read Status [ACh]
This command reads the value in the status register. After issuing this command, the user reads the 8 bits
present in the status register.
Start Convert T [EEh]
This command begins a temperature conversion. No further data is required. In One-Shot mode, the
temperature conversion will be performed and then the DS1821 will remain idle. In continuous mode, this
command will initiate continuous conversions.
Stop Convert T [22h]
This command stops temperature conversion. No further data is required. This command may be used to
halt a DS1821 in continuous conversion mode. After issuing this command, the current temperature
measurement will be completed, and then the DS1821 will remain idle until a Start Convert T is issued to
resume continuous operation.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| DS1830 | Reset Sequence Pushbutton |
| DS1830A | Reset Sequence Pushbutton |
| DS1830AS | Reset Sequence Pushbutton |
| DS1830AU | Reset Sequence Pushbutton |
| DS1830U | Reset Sequence Pushbutton |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| DS1821_07 | 制造商:DALLAS 制造商全稱:Dallas Semiconductor 功能描述:Programmable Digital Thermostat and Thermometer |
| DS1821+ | 功能描述:板上安裝溫度傳感器 Programmable Digital Thermostat/Thrmmtr RoHS:否 制造商:Omron Electronics 輸出類型:Digital 配置: 準(zhǔn)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(fēng)格: 封裝 / 箱體: 設(shè)備功能:Temperature and Humidity Sensor |
| DS1821C+ | 功能描述:恒溫器 Programmable Digital Thermo-stat/monitor RoHS:否 制造商:Maxim Integrated 功能: 開路溫度: 閉合溫度: 準(zhǔn)確性:+/- 1 C 溫度范圍:- 55 C to + 125 C 電流額定值:500 uA 電壓額定值:2.7 V to 5.5 V 產(chǎn)品:Thermostats |
| DS1821-C02 | 功能描述:板上安裝溫度傳感器 RoHS:否 制造商:Omron Electronics 輸出類型:Digital 配置: 準(zhǔn)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(fēng)格: 封裝 / 箱體: 設(shè)備功能:Temperature and Humidity Sensor |
| DS1821-C04 | 制造商:DSC 功能描述: |
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