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參數(shù)資料
| 型號(hào)： | DS75S |
| 元件分類： | 溫度傳感器 |
| 英文描述： | 2.Wire Thermal Watchdog |
| 中文描述： | 2.Wire熱看門(mén)狗 |
| 文件頁(yè)數(shù)： | 6/13頁(yè) |
| 文件大小： | 240K |
| 代理商： | DS75S |
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DS75
6 of 13
Configuration Register Programming
The configuration register is accessed if the DS75 pointer is currently set to the 01h location. Writing to
or reading from the register is determined by the R/W bit of the 2–wire control byte (See “2–wire Serial
Data Bus” section). Data is read from or written to the configuration register MSb first. The format of the
register is illustrated below in Figure 3. The effect each bit has on DS75 functionality is described below
along with the power–up state of the bit. The user has read/write access to all bits in the configuration
register. The entire register is volatile, and thus it will power–up in the default state.
CONFIGURATION/STATUS REGISTER
Figure 3
0
R1
R0
F1
F0
POL
TM
SD
MSb
LSb
SD =
Shutdown bit. If SD is “0”, the DS75 will continuously perform temperature conversions and store
the last completed result in the thermometer register. If SD is changed to “1”, the conversion in progress
will be completed and stored; then the device will revert to a low–power standby mode. The O.S. output
will be cleared if the device is in the interrupt mode and remain unchanged in the comparator mode. The
2–wire port remains active. The power–up default state is “0” (continuous conversion mode).
TM =
Thermostat mode. If TM=“0”, the DS75 is in the comparator mode. TM=“1” sets the device to the
interrupt mode. See “OPERATION–Thermostat Control” section for a description of the difference
between the two modes. The power–up default state of the TM bit is “0” (comparator mode).
POL =
O.S. Polarity Bit. If POL =“1”, the active state of the O.S. output will be high. A “0” stored in
this location sets the thermostat output to an active low state. The user has read/write access to the POL
bit, and the power–up default state is “0” (active low).
F0, F1 =
O.S. Fault Tolerance bits. The fault tolerance defines the number of consecutive conversions
returning a temperature beyond limits is required to set the O.S. output in an active state. This may be
necessary to add margin in noisy environments. Table 4 below defines the four settings. The DS75 will
power up with F0=F1=“0”, such that a single occurrence will trigger a fault.
Fault Tolerance Configuration Table 4
F1
F0
Consecutive conversions beyond limits
to generate fault
0
0
0
1
1
0
1
1
1
2
4
6
R0, R1
= Thermometer resolution bits. Table 5 below defines the resolution of the digital thermometer,
based on the settings of these two bits. There is a direct trade-off between resolution and conversion time,
as depicted in the AC Electrical Characteristics. The default state is R0=0 and R1=0 (9–bit conversions).
“0”
= Reserved Location. The master can write to this bit, but it will always read out as a “0”. The
power–on default state is “0”.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| DS75S/T&R | 制造商:Maxim Integrated Products 功能描述:2-WIRE THERMAL WATCHDOG SOIC T&R - Tape and Reel 制造商:Maxim Integrated Products 功能描述:IC WATCHDOG THERM 2-W 3/5V 8SOIC |
| DS75S/T&R | 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 |
| DS75S+ | 功能描述:板上安裝溫度傳感器 Digital 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 |
| DS75S+/ | 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 |
| DS75S+T&R | 制造商:Maxim Integrated Products 功能描述:DS75 LEAD FREE SO 8 T&R 制造商:Maxim Integrated Products 功能描述:TEMP SENSOR DGTL 2-WIRE 8SOIC - Tape and Reel 制造商:Maxim Integrated Products 功能描述:IC THERMOMETER/STAT DIG 8-SOIC 制造商:Maxim Integrated Products 功能描述:Board Mount Temperature Sensors Digital 制造商:Maxim Integrated Products 功能描述:Temp Sensor Digital Serial (2-Wire) SO8 |
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