Datasheet > DS18B20_08

DS18B20_08

更新时间： 2024-09-24 04:39:11

品牌	Logo	应用领域
达拉斯 - DALLAS		/
页数	文件大小	规格书
22页	184K
描述
Programmable Resolution 1-Wire Digital Thermometer

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中文翻译

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数据手册

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DS18B20_08 数据手册

DS18B20

Programmable Resolution

1-Wire Digital Thermometer

www.maxim-ic.com

FEATURES

PIN CONFIGURATIONS

ꢀ

Unique 1-Wire^®Interface Requires Only One

Port Pin for Communication

Each Device has a Unique 64-Bit Serial Code

Stored in an On-Board ROM

DALLAS

18B20

N.C.

GND

N.C.

V_DD

Multidrop Capability Simplifies Distributed

Temperature-Sensing Applications

Requires No External Components

Can Be Powered from Data Line; Power Supply

Range is 3.0V to 5.5V

1 2 3

ꢀ

SO (150 mils)

(DS18B20Z)

ꢀ

Measures Temperatures from -55°C to +125°C

(-67°F to +257°F)

ꢀ

±0.5°C Accuracy from -10°C to +85°C

Thermometer Resolution is User Selectable

from 9 to 12 Bits

Converts Temperature to 12-Bit Digital Word in

750ms (Max)

User-Definable Nonvolatile (NV) Alarm

Settings

Alarm Search Command Identifies and

Addresses Devices Whose Temperature is

Outside Programmed Limits (Temperature

Alarm Condition)

V_DD

N.C.

GND

N.C.

ꢀ

μSOP

(DS18B20U)

(BOTTOM VIEW)

TO-92

(DS18B20)

ꢀ

Available in 8-Pin SO (150 mils), 8-Pin μSOP,

and 3-Pin TO-92 Packages

ꢀ

Software Compatible with the DS1822

Applications Include Thermostatic Controls,

Industrial Systems, Consumer Products,

Thermometers, or Any Thermally Sensitive

System

DESCRIPTION

The DS18B20 digital thermometer provides 9-bit to 12-bit Celsius temperature measurements and has an

alarm function with nonvolatile user-programmable upper and lower trigger points. The DS18B20

communicates over a 1-Wire bus that by definition requires only one data line (and ground) for

communication with a central microprocessor. It has an operating temperature range of -55°C to +125°C

and is accurate to ±0.5°C over the range of -10°C to +85°C. In addition, the DS18B20 can derive power

directly from the data line (“parasite power”), eliminating the need for an external power supply.

Each DS18B20 has a unique 64-bit serial code, which allows multiple DS18B20s to function on the same

1-Wire bus. Thus, it is simple to use one microprocessor to control many DS18B20s 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.

1-Wire is a registered trademark of Maxim Integrated Products, Inc.

1 of 22

REV: 042208

12 3 4 5 6 7...22

中文翻译

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与DS18B20_08相关器件

型号	品牌	获取价格	描述	数据表
DS18B20+	MAXIM	获取价格	暂无描述
DS18B20+T&R	MAXIM	获取价格	Serial Switch/Digital Sensor, 12 Bit(s), 0.50Cel, Rectangular, 3 Pin, Through Hole Mount,
DS18B20A10	UMW	获取价格	温度感应器
DS18B20A20	UMW	获取价格	温度感应器
DS18B20A30	UMW	获取价格	温度感应器
DS18B20P	DALLAS	获取价格	Serial Switch/Digital Sensor, 12 Bit(s), 0.50Cel, Rectangular, Surface Mount, TSOC-6
DS18B20-PAR	MAXIM	获取价格	1-Wire Parasite-Power Digital Thermometer
DS18B20-PAR	ADI	获取价格	1-Wire寄生供电数字温度计
DS18B20-PAR/T&R	MAXIM	获取价格	Serial Switch/Digital Sensor, 12 Bit(s), 0.50Cel, Round, Through Hole Mount, TO-92, 3 PIN
DS18B20-PAR_07	MAXIM	获取价格	1-Wire Parasite-Power Digital Thermometer

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