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FEATURES
"   Unique 1-Wire
?/DIV>
  interface requires only one
port pin for communication
"   Derives   power   from   data   line   (parasite
power)does not need a local power supply
"   Multi-drop capability simplifies distributed
temperature sensing applications
"   Requires no external components
"   ?.5癈 accuracy from 10癈 to +85癈
"   Measures   temperatures   from   55癈   to
+100癈 (67癋 to +212癋)
"   Thermometer   resolution   is   user-selectable
from 9 to 12 bits
"   Converts temperature to 12-bit digital word in
750 ms (max.)
"   Userdefinable     non-volatile     temperature
alarm settings
"   Alarm    search    command    identifies    and
addresses   devices   whose   temperature   is
outside of programmed limits (temperature
alarm condition)
"   Software compatible with the DS1822-PAR
"   Ideal for use in remote sensing applications
(e.g., temperature probes) that do not have a
local power source
 
PIN ASSIGNMENT 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
PIN DESCRIPTION
GND   - Ground
DQ     - Data In/Out
NC     - No Connect
 
DESCRIPTION
The DS18B20-PAR digital thermometer provides 9 to 12bit centigrade temperature measurements and
has an alarm function with nonvolatile user-programmable upper and lower trigger points. The
DS18B20-PAR does not need an external power supply because it derives power directly from the data
line (parasite power). The DS18B20-PAR communicates over a 1-Wire bus, which by definition
requires only one data line (and ground) for communication with a central microprocessor. It has an
operating temperature range of 55癈 to +100癈 and is accurate to ?.5癈 over a range of 10癈 to
+85癈.
Each DS18B20-PAR has a unique 64-bit identification code, which allows multiple DS18B20-PARs to
function on the same 1wire bus; thus, it is simple to use one microprocessor to control many DS18B20-
PARs distributed over a large area. Applications that can benefit from this feature include HVAC
environmental controls, temperature monitoring systems inside buildings, equipment or machinery, and
process monitoring and control systems.
DS18B20-PAR
1-Wire Parasite-Power
Digital Thermometer
 
-
TO-92
DS18B20-PAR  
1
BOTTOM VIEW
2 3
DALLAS
18B20P 
1
2 3
1-Wire is a registered trademark of Dallas Semiconductor.
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相关代理商/技术参数
DS18B20+T&R 制造商:Maxim Integrated Products 功能描述: 制造商:Maxim Integrated Products 功能描述:PROGRAMMABLE THERMOMETER 制造商:Maxim Integrated Products 功能描述:TEMP SENSOR DGTL SERL (1-WIRE) 3PIN TO-92 - Tape and Reel 制造商:Maxim Integrated Products 功能描述:IC THERM MICROLAN PROG-RES TO-92 制造商:Maxim Integrated Products 功能描述:IC THERM MICROLAN PROG-RES TO92 制造商:Maxim Integrated Products 功能描述:Board Mount Temperature Sensors Prgmble Resolution 1-Wire Parasite Pwr
DS18B20+T&R 功能描述:板上安装温度传感器 Prgmble Resolution 1-Wire Parasite Pwr RoHS:否 制造商:Omron Electronics 输出类型:Digital 配置: 准确性:+/- 1.5 C, +/- 3 C 温度阈值: 数字输出 - 总线接口:2-Wire, I2C, SMBus 电源电压-最大:5.5 V 电源电压-最小:4.5 V 最大工作温度:+ 50 C 最小工作温度:0 C 关闭: 安装风格: 封装 / 箱体: 设备功能:Temperature and Humidity Sensor
DS18B20-PAR 功能描述:板上安装温度传感器 RoHS:否 制造商:Omron Electronics 输出类型:Digital 配置: 准确性:+/- 1.5 C, +/- 3 C 温度阈值: 数字输出 - 总线接口:2-Wire, I2C, SMBus 电源电压-最大:5.5 V 电源电压-最小:4.5 V 最大工作温度:+ 50 C 最小工作温度:0 C 关闭: 安装风格: 封装 / 箱体: 设备功能:Temperature and Humidity Sensor
DS18B20-PAR/T&R 功能描述:板上安装温度传感器 RoHS:否 制造商:Omron Electronics 输出类型:Digital 配置: 准确性:+/- 1.5 C, +/- 3 C 温度阈值: 数字输出 - 总线接口:2-Wire, I2C, SMBus 电源电压-最大:5.5 V 电源电压-最小:4.5 V 最大工作温度:+ 50 C 最小工作温度:0 C 关闭: 安装风格: 封装 / 箱体: 设备功能:Temperature and Humidity Sensor
DS18B20-PAR_07 制造商:MAXIM 制造商全称:Maxim Integrated Products 功能描述:1-Wire Parasite-Power Digital Thermometer
DS18B20-PAR+T&R 制造商:Maxim Integrated Products 功能描述: 制造商:Maxim Integrated Products 功能描述:TEMP SENSOR DGTL 1-WIRE 3PIN TO-92 - Tape and Reel 制造商:Maxim Integrated Products 功能描述:IC THERM MICROLAN PROG-RES TO-92 制造商:Maxim Integrated Products 功能描述:Board Mount Temperature Sensors Prgmble Resolution 1-Wire Parasite Pwr
DS18B20-PAR+T&R 功能描述:板上安装温度传感器 Prgmble Resolution 1-Wire Parasite Pwr RoHS:否 制造商:Omron Electronics 输出类型:Digital 配置: 准确性:+/- 1.5 C, +/- 3 C 温度阈值: 数字输出 - 总线接口:2-Wire, I2C, SMBus 电源电压-最大:5.5 V 电源电压-最小:4.5 V 最大工作温度:+ 50 C 最小工作温度:0 C 关闭: 安装风格: 封装 / 箱体: 设备功能:Temperature and Humidity Sensor
DS18B20-SL 制造商:DALLAS 制造商全称:Dallas Semiconductor 功能描述:Programmable Resolution 1-Wire Digital Thermometer