参数资料
型号: DS1821T
厂商: Maxim Integrated
文件页数: 14/19页
文件大小: 793K
描述: IC THERMOMETER/STAT PROG TO-220
标准包装: 1
系列: 1-Wire®
功能: 温度计,恒温计
传感器类型: 内部
感应温度: -55°C ~ 125°C
精确度: ±1°C(最小值)
拓扑: 比较器,寄存器库
输出类型: 数字
输出警报:
输出风扇:
电源电压: 2.7 V ~ 5.5 V
工作温度: -55°C ~ 125°C
安装类型: 通孔
封装/外壳: TO-220-3
供应商设备封装: TO-220-3
DS1821
 
14 of 19
 
 
DS1821 OPERATION EXAMPLE  
In this example, the master device programs the DS1821 with T
L
 = +10癈 and T
H
 = +40癈 and verifies
that the data has been saved correctly. The master then programs the status/configuration register so that
the device will power-up in thermostat mode (T/R  ?= 1) and the thermostat output will have active high
polarity (POL = 1).
MASTER
MODE
DATA (LSB
FIRST
COMMENTS
TX
Reset
Master issues reset   ulse.
RX
Presence
DS1821 res  onds with resence   ulse.
TX
01h
Master issues Write TH command.
TX
28h
Master sends data for T
H
 = +40癈.
TX
Reset
Master issues reset   ulse.
RX
Presence
DS1821 res  onds with resence   ulse.
TX
02h
Master issues Write TL command.
TX
0Ah
Master sends data for T
L
 = +10癈.
TX
Reset
Master issues reset   ulse.
RX
Presence
DS1821 res  onds with resence   ulse.
TX
A1h
Master issues Read TH command.
RX
28h
Master reads stored T
H
 value to verif data.
TX
Reset
Master issues reset   ulse.
RX
Presence
DS1821 res  onds with resence   ulse.
TX
A2h
Master issues Read TL command.
RX
0Ah
Master reads stored T
L
 value to verif data.
TX
Reset
Master issues reset   ulse.
RX
Presence
DS1821 res  onds with resence   ulse.
TX
0Ch
Master issues Write Status command.
TX
06h
Master sends status/configuration data to the DS1821 with T/R  ?=
1 (thermostat mode at power-up) and POL = 1 (active high
thermostat out  ut .
?
?
Power is c  cled; DS1821   owers-u   in thermostat mode.
 
相关PDF资料
PDF描述
EBC12DCMH CONN EDGECARD 24POS .100 WW
DS1620S-D1 IC THERMOMETER/STAT DIG 8-SOIC
EBC12DCMD CONN EDGECARD 24POS .100 WW
DS75S IC WATCHDOG THERM 2-W 3/5V 8SOIC
EBC08DCAN CONN EDGECARD 16POS R/A .100 SLD
相关代理商/技术参数
参数描述
DS1822 功能描述:板上安装温度传感器 RoHS:否 制造商:Omron Electronics 输出类型:Digital 配置: 准确性:+/- 1.5 C, +/- 3 C 温度阈值: 数字输出 - 总线接口:2-Wire, I2C, SMBus 电源电压-最大:5.5 V 电源电压-最小:4.5 V 最大工作温度:+ 50 C 最小工作温度:0 C 关闭: 安装风格: 封装 / 箱体: 设备功能:Temperature and Humidity Sensor
DS1822/T&R 功能描述:板上安装温度传感器 RoHS:否 制造商:Omron Electronics 输出类型:Digital 配置: 准确性:+/- 1.5 C, +/- 3 C 温度阈值: 数字输出 - 总线接口:2-Wire, I2C, SMBus 电源电压-最大:5.5 V 电源电压-最小:4.5 V 最大工作温度:+ 50 C 最小工作温度:0 C 关闭: 安装风格: 封装 / 箱体: 设备功能:Temperature and Humidity Sensor
DS1822+ 功能描述:板上安装温度传感器 1-Wire Digital Thermometer RoHS:否 制造商:Omron Electronics 输出类型:Digital 配置: 准确性:+/- 1.5 C, +/- 3 C 温度阈值: 数字输出 - 总线接口:2-Wire, I2C, SMBus 电源电压-最大:5.5 V 电源电压-最小:4.5 V 最大工作温度:+ 50 C 最小工作温度:0 C 关闭: 安装风格: 封装 / 箱体: 设备功能:Temperature and Humidity Sensor
DS1822+PAR 功能描述:板上安装温度传感器 1-Wire Digital Thermometer RoHS:否 制造商:Omron Electronics 输出类型:Digital 配置: 准确性:+/- 1.5 C, +/- 3 C 温度阈值: 数字输出 - 总线接口:2-Wire, I2C, SMBus 电源电压-最大:5.5 V 电源电压-最小:4.5 V 最大工作温度:+ 50 C 最小工作温度:0 C 关闭: 安装风格: 封装 / 箱体: 设备功能:Temperature and Humidity Sensor
DS1822+T 制造商:MAXIM 制造商全称:Maxim Integrated Products 功能描述:Econo 1-Wire Digital Thermometer