Datasheet > DS1821C

DS1821C

更新时间： 2024-01-31 23:40:49

品牌	Logo	应用领域
美信 - MAXIM		输出元件传感器换能器
页数	文件大小	规格书
19页	793K
描述
Serial Switch/Digital Sensor, 8 Bit(s), 1Cel, Round, 3 Pin, Through Hole Mount, TO-92, 3 PIN

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技术参数
数据手册

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DS1821C 技术参数

是否无铅：	含铅	是否Rohs认证：	不符合
生命周期：	Obsolete	包装说明：	TO-92, 3 PIN
Reach Compliance Code：	not_compliant	ECCN代码：	EAR99
HTS代码：	8542.39.00.01	风险等级：	5.81
最大精度（摄氏度）：	1 Cel	主体高度：	4.63 mm
主体长度或直径：	4.7 mm	安装特点：	THROUGH HOLE MOUNT
位数：	8	端子数量：	3
最大工作电流：	1 mA	最高工作温度：	125 °C
最低工作温度：	-55 °C	输出接口类型：	1-WIRE INTERFACE
封装主体材料：	PLASTIC/EPOXY	封装等效代码：	SIP3,.1,50
封装形状/形式：	ROUND	电源：	3/5 V
传感器/换能器类型：	TEMPERATURE SENSOR,SWITCH/DIGITAL OUTPUT,SERIAL	子类别：	Other Sensors
最大供电电压：	5.5 V	最小供电电压：	2.7 V
表面贴装：	NO	端接类型：	SOLDER
Base Number Matches：	1

DS1821C 数据手册

19-6322; Rev 6/12

DS1821

Programmable Digital Thermostat and Thermometer

FEATURES

PIN ASSIGNMENT

. Requires no external components

. Unique 1-Wire^®interface requires only one

port pin for communication

. Operates over a -55°C to +125°C (-67°F to

+257°F) temperature range

V_DD

DS1821

GND

1 2 3

. Functions as a standalone thermostat with

user-definable trip-points

. Provides 8-bit (1°C resolution) centigrade

temperature measurements

. Accuracy is ±1°C over 0°C to +85°C range

. Converts temperature to a digital word in

1 second (max)

8-pin 208-mil SO

(DS1821S)

. Available in 3-pin TO92 and 8-pin SO

packages

. Applications include thermostatic controls,

industrial systems, consumer products,

thermometers, or any thermally sensitive

system

(BOTTOM VIEW)

TO92

(DS1821C)

PIN DESCRIPTION

GND

V_DD

- Ground

- Data In/Out and Thermostat Output

- Power Supply Voltage

- No Connect

1-Wire is a registered trademark of Maxim Integrated

Products, Inc.

DESCRIPTION

The DS1821 can function as a standalone thermostat with user-programmable trip-points or as 8-bit

temperature sensor with a 1-Wire digital interface. The thermostat trip-points are stored in nonvolatile

memory, so DS1821 units can be programmed prior to system insertion for true standalone operation.

The DS1821 has an operating temperature range of –55°C to +125°C and is accurate to ±1°C over a range

of 0°C to +85°C. Communication with the DS1821 is accomplished through the open-drain DQ pin; this

pin also serves as the thermostat output.

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