Datasheet 搜索 > 温度传感器 > Maxim Integrated（美信） > DS1621S 数据手册 > DS1621S 数据手册 1/17 页
器件3D模型￥ 7.647
DS1621S 数据手册 - Maxim Integrated（美信）
制造商:
Maxim Integrated（美信）
分类:
温度传感器
封装:
SOIC-8
描述:
数字温度计和温度监控器 Digital Thermometer and Thermostat
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DS1621S数据手册
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BENEFITS AND FEATURES
Simply Adds Temperature Monitoring and
Control to Any System
o Measures Temperatures From -55°C to
+125°C in 0.5°C Increments. Fahrenheit
Equivalent is -67°F to 257°F in 0.9°F
Increments
o Temperature is Read as a 9-Bit Value (2-
Byte Transfer)
o Converts Temperature to Digital Word in
Less than 1s
o Thermostatic Settings are User Definable
And Nonvolatile
Can Be Used in a Wide Variety of
Applications
o Power Supply Range (2.7V to 5.5V)
o Data is Read From/Written Via a 2-Wire
Serial Interface (Open Drain I/O Lines)
Saves Space
o Temperature Measurements Require No
External Components
o 8-pin DIP or SO package (208-mil)
Packages
APPLICATIONS
⋅ Thermostatic Controls
⋅ Industrial Systems
⋅ Consumer Products
⋅ Thermometers
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
6
3
1
2
4
8
7
5
SDA
T
OUT
GND
V
DD
A
0
A
1
A
2
DS1621S 8-PIN SO (150mil)
DS1621V 8-PIN SO (208mil)
6
3
1
2
4
8
7
5
SDA
SCL
T
OUT
GND
V
DD
A
0
A
1
A
2
DS1621 8-PIN DIP (300mil)
SCL
1 of 16 19-7540; Rev 4; 3/15
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