參數(shù)資料
型號: DS18B20-PAR+T&R
廠商: Maxim Integrated
文件頁數(shù): 1/19頁
文件大?。?/td> 221K
描述: IC THERM MICROLAN PROG-RES TO-92
產(chǎn)品培訓(xùn)模塊: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
標(biāo)準(zhǔn)包裝: 2,000
功能: 溫度計,恒溫計
傳感器類型: 內(nèi)部
感應(yīng)溫度: -55°C ~ 100°C
精確度: ±2°C(最小值)
拓?fù)洌?/td> 寄存器庫,變簽式暫存器
輸出類型: 1-Wire?
輸出警報:
輸出風(fēng)扇:
電源電壓: 3 V ~ 5.5 V
工作溫度: -55°C ~ 100°C
安裝類型: 通孔
封裝/外殼: TO-226-3、TO-92-3(TO-226AA)成形引線
供應(yīng)商設(shè)備封裝: TO-92-3
包裝: 帶卷 (TR)
 
1 of 19
 
101207
 
 
 
 
 
 
 
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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