DS1821S+TR

更新时间： 2024-02-01 09:54:18

品牌	Logo	应用领域
达拉斯 - DALLAS		监控
页数	文件大小	规格书
18页	455K
描述
Programmable Digital Thermostat and Thermometer

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中文翻译

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技术参数
数据手册

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DS1821S+TR 技术参数

是否Rohs认证：	不符合	生命周期：	Obsolete
包装说明：	TO-220, 3 PIN	Reach Compliance Code：	unknown
风险等级：	5.78	Is Samacsys：	N
外壳：	PLASTIC	JESD-609代码：	e0
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,.1TB	封装形状/形式：	RECTANGULAR
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
端子面层：	Tin/Lead (Sn/Pb)	端接类型：	SOLDER
Base Number Matches：	1

DS1821S+TR 数据手册

DS1821

INITIALIZATION

All transactions on the 1-Wire bus begin with an initialization sequence. The initialization sequence

consists of a reset pulse transmitted by the bus master followed by a presence pulse transmitted by the

DS1821. The presence pulse lets the bus master know that the DS1821 is on the bus and ready to

operate. Timing for the reset and presence pulses is detailed in the 1-Wire SIGNALING section.

DS1821 FUNCTION COMMANDS

The DS1821 function commands in this section allow the master to communicate with and configure the

DS1821. The DS1821 function commands are summarized in Table 4.

READ TEMPERATURE [AAh]

Provides read access to the 1-byte temperature register.

START CONVERT T [EEh]

Initiates temperature conversions. If the part is in one-shot mode (1SHOT = 1), only one conversion will

be performed. If it is in continuous mode (1SHOT = 0), continuous conversions will be performed until a

Stop Convert T command is received.

STOP CONVERT T [22h]

Stops temperature conversions when the device is in continuous conversion mode (1SHOT = 0). This

opcode has no function if the device is in one-shot mode (1SHOT = 1).

WRITE TH [01h]

WRITE TL [02h]

Provides write access to the 8-bit T_Hand T_Lregisters, respectively.

READ TH [A1h]

READ TL [A2h]

Provides read access to the 8-bit T_Hand T_Lregisters, respectively.

WRITE STATUS [0Ch]

Provides write access to the 8-bit status/configuration register.

READ STATUS [ACh]

Provides read access to the 8-bit status/configuration register.

READ COUNTER [A0h]

Provides read access to data in the 9-bit counter register for use in high-resolution temperature

calculations. This is explained in detail in the HIGH-RESOLUTION TEMPERATURE READINGS

section.

LOAD COUNTER [41h]

Loads the 9-bit data from the slope accumulator register into the counter register so that it can be accessed

using the Read Counter [A0h] command. Use of the Load Counter command is explained in detail in the

HIGH-RESOLUTION TEMPERATURE READINGS section.

10 of 18

1...7 8 91011 12 13...18

中文翻译

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与DS1821S+TR相关器件

型号	品牌	获取价格	描述	数据表
DS1821T	MAXIM	获取价格	Temperature Sensor, 3 Pin, Through Hole Mount,
DS1822	DALLAS	获取价格	Econo 1-Wire Digital Thermometer
DS1822	MAXIM	获取价格	Econo 1-Wire Digital Thermometer
DS1822	ADI	获取价格	经济型、1-Wire数字温度计
DS1822/T&R	MAXIM	获取价格	Serial Switch/Digital Sensor, 12 Bit(s), 2Cel, Rectangular, 3 Pin, Through Hole Mount, TO9
DS1822/T&R	MAXIM	获取价格	Econo 1-Wire Digital Thermometer
DS1822_V01	MAXIM	获取价格	Econo 1-Wire Digital Thermometer
DS1822+	MAXIM	获取价格	Econo 1-Wire Digital Thermometer
DS1822+PAR	MAXIM	获取价格	Serial Switch/Digital Sensor, 12 Bit(s), 2Cel, Rectangular, 3 Pin, Through Hole Mount, TO-
DS1822+T	MAXIM	获取价格	Econo 1-Wire Digital Thermometer

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