參數(shù)資料
型號(hào): DS1621S/T&R
廠商: Maxim Integrated
文件頁(yè)數(shù): 1/16頁(yè)
文件大小: 337K
描述: IC THERMOMETER/STAT DIG 8-SOIC
產(chǎn)品培訓(xùn)模塊: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
標(biāo)準(zhǔn)包裝: 2,500
功能: 溫度計(jì),恒溫計(jì)
傳感器類(lèi)型: 內(nèi)部
感應(yīng)溫度: -55°C ~ 125°C
精確度: ±2°C(最小值)
拓?fù)洌?/td> ADC(三角積分型),比較器,寄存器庫(kù)
輸出類(lèi)型: I²C?/SMBus?
輸出警報(bào):
輸出風(fēng)扇: 無(wú)
電源電壓: 2.7 V ~ 5.5 V
工作溫度: -55°C ~ 125°C
安裝類(lèi)型: 表面貼裝
封裝/外殼: 8-SOIC(0.154",3.90mm 寬)
供應(yīng)商設(shè)備封裝: 8-SOIC
包裝: 帶卷 (TR)
A
V
AI
LA
B
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or pricing, delivery, and ordering information, please contact Maxim Direct
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FEATURES
?Temperature measurements require no
external components
?Measures temperatures from -55癈 to +125癈
in 0.5癈 increments. Fahrenheit equivalent is
-67癋 to 257癋 in 0.9癋 increments
?Temperature is read as a 9-bit value (2-byte
transfer)
?Wide power supply range (2.7V to 5.5V)
?Converts temperature to digital word in less
than 1 second
?Thermostatic settings are user definable and
nonvolatile
?Data is read from/written via a 2-wire serial
interface (open drain I/O lines)
?Applications include thermostatic controls,
industrial systems, consumer products,
thermometers, or any thermal sensitive
system
?8-pin DIP or SO package (150mil and
208mil)
PIN ASSIGNMENT
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
PIN DESCRIPTION
SDA   
- 2-Wire Serial Data Input/Output
SCL    
- 2-Wire Serial Clock
GND   
- Ground
T
OUT
   
- Thermostat Output Signal
A0
 
- Chip Address Input
A1
 
- Chip Address Input
A2
 
- Chip Address Input
V
DD
    
- Power Supply Voltage
 
DESCRIPTION
The DS1621 Digital Thermometer and Thermostat provides 9-bit temperature readings, which indicate
the temperature of the device. The thermal alarm output, T
OUT
, is  active  when  the  temperature  of  the 
device exceeds a user-defined temperature TH. The output remains active until the temperature drops
below user defined temperature TL, allowing for any hysteresis necessary.
 
User-defined temperature settings are stored in nonvolatile memory so parts may be programmed prior to
insertion in a system. Temperature settings and temperature readings are all communicated to/from the
DS1621 over a simple 2-wire serial interface.
DS1621
Digital Thermometer and Thermostat
 
6
3
1
 
7
SDA
T
OUT
GND
V
DD
 
0
 
1
 
A
2
 
DS1621S 8-PIN SO (150mil)
DS1621V 8-PIN SO (208mil)
 
6
3
1
 
7
SDA
SCL
T
GND
V
DD
 
0
 
1
 
A
2
 
DS1621 8-PIN DIP (300mil)
 
SCL
090905
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