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參數(shù)資料
| 型號： | DS1821T |
| 廠商： | Maxim Integrated |
| 文件頁數(shù)： | 1/19頁 |
| 文件大?。?/td> | 793K |
| 描述： | IC THERMOMETER/STAT PROG TO-220 |
| 標(biāo)準(zhǔn)包裝： | 1 |
| 系列： | 1-Wire® |
| 功能： | 溫度計(jì)，恒溫計(jì) |
| 傳感器類型： | 內(nèi)部 |
| 感應(yīng)溫度： | -55°C ~ 125°C |
| 精確度： | ±1°C（最小值） |
| 拓?fù)洌?/td> | 比較器，寄存器庫 |
| 輸出類型： | 數(shù)字 |
| 輸出警報： | 無 |
| 輸出風(fēng)扇： | 無 |
| 電源電壓： | 2.7 V ~ 5.5 V |
| 工作溫度： | -55°C ~ 125°C |
| 安裝類型： | 通孔 |
| 封裝/外殼： | TO-220-3 |
| 供應(yīng)商設(shè)備封裝： | TO-220-3 |
1 of 19
FEATURES
? Requires no external components
? Unique 1-Wire
?/DIV>
interface requires only one
port pin for communication
? Operates over a -55癈 to +125癈 (-67癋 to
+257癋) temperature range
? Functions as a standalone thermostat with
user-definable trip-points
? Provides 8-bit (1癈 resolution) centigrade
temperature measurements
? Accuracy is ?癈 over 0癈 to +85癈 range
? Converts temperature to a digital word in
1 second (max)
? Available in 3-pin TO92 and 8-pin SO
packages
? Applications include thermostatic controls,
industrial systems, consumer products,
thermometers, or any thermally sensitive
system
PIN ASSIGNMENT
PIN DESCRIPTION
GND - Ground
DQ
- Data In/Out and Thermostat Output
V
DD
- Power Supply Voltage
NC
- No Connect
DESCRIPTION
The DS1821 can function as a standalone thermostat with user-programmable trip-points or as 8-bit
temperature sensor with a 1-Wire digital interface. The thermostat trip-points are stored in nonvolatile
memory, so DS1821 units can be programmed prior to system insertion for true standalone operation.
The DS1821 has an operating temperature range of 55癈 to +125癈 and is accurate to ?癈 over a range
of 0癈 to +85癈. Communication with the DS1821 is accomplished through the open-drain DQ pin; this
pin also serves as the thermostat output.
DS1821
Programmable Digital Thermostat and Thermometer
8-pin 208-mil SO
D 1 21
1
B TT M IE
2 3
DS1821
1
2 3
TO92
(DS1821C)
6
3
1
2
4
7
5
D
NC
V
N
NC
1-Wire is a registered trademark of Maxim Integrated
Products, Inc.
1 - 22 R v 12
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參數(shù)描述 |
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| DS1822 | 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 |
| DS1822/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 |
| DS1822+ | 功能描述:板上安裝溫度傳感器 1-Wire Digital Thermometer 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 |
| DS1822+PAR | 功能描述:板上安裝溫度傳感器 1-Wire Digital Thermometer 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 |
| DS1822+T | 制造商:MAXIM 制造商全稱:Maxim Integrated Products 功能描述:Econo 1-Wire Digital Thermometer |
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