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參數(shù)資料
| 型號： | DS1621 |
| 元件分類： | 溫度傳感器 |
| 英文描述： | Digital Thermometer and Thermostat |
| 中文描述： | 數(shù)字溫度計和溫度監(jiān)控器 |
| 文件頁數(shù)： | 10/16頁 |
| 文件大?。?/td> | 647K |
| 代理商： | DS1621 |
DS1621
10 of 16
102299
COMMAND SET
Data and control information is read from and written to the DS1621 in the format shown in Figure 5. To
write to the DS1621, the master will issue the slave address of the DS1621 and the R/
W
bit will be set to
“0”. After receiving an acknowledge, the bus master provides a command protocol. After receiving this
protocol, the DS1621 will issue an acknowledge and then the master may send data to the DS1621. If the
DS1621 is to be read, the master must send the command protocol as before and then issue a repeated
START condition and the control byte again, this time with the R/
W
bit set to “1” to allow reading of the
data from the DS1621. The command set for the DS1621 as shown in Table 3 is as follows:
Read Temperature [AAh]
This command reads the last temperature conversion result. The DS1621 will send 2 bytes, in the format
described earlier, which are the contents of this register.
Access TH [A1h]
If R/
W
is “0” this command writes to the TH (HIGH TEMPERATURE) register. After issuing this
command, the next 2 bytes written to the DS1621, in the same format as described for reading
temperature, will set the high temperature threshold for operation of the T
OUT
output. If R/
W
is “1” the
value stored in this register is read back.
Access TL [A2h]
If R/
W
is “0” this command writes to the TL (LOW TEMPERATURE) register. After issuing this
command, the next 2 bytes written to the DS1621, in the same format as described for reading
temperature, will set the high temperature threshold for operation of the T
OUT
output. If R/
W
is “1” the
value stored in this register is read back.
Access Config [ACh]
If R/
W
is “0” this command writes to the configuration register. After issuing this command, the next
data byte is the value to be written into the configuration register. If R/
W
is “1” the next data byte read is
the value stored in the configuration register.
Read Counter [A8h]
This command reads the value of the counter byte. This command is valid only if R/
W
is “1”.
Read Slope [A9h]
This command reads the value of the slope counter byte from the DS1621. This command is valid only if
R/
W
is “1”.
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 DS1621 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 DS1621 in continuous conversion mode. After issuing this command, the current temperature
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| DS1621+ | 功能描述:板上安裝溫度傳感器 Digital Thermometer & Thermostat 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(fēng)格: 封裝 / 箱體: 設(shè)備功能:Temperature and Humidity Sensor |
| DS1621C | 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 |
| DS1621C-A7-W | 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 |
| DS1621S | 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 |
| DS1621S/T&R | 制造商:Maxim Integrated Products 功能描述:DIGITAL THERMOMETER & THERMOSTAT - Tape and Reel 制造商:Maxim Integrated Products 功能描述:IC THERMOMETER/STAT DIG 8-SOIC |
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