参数资料
型号: DS1822
厂商: MAXIM INTEGRATED PRODUCTS INC
元件分类: Switch/Digital Output Temperature Sensor
英文描述: DIGITAL TEMP SENSOR-SERIAL, 12BIT(s), 2Cel, RECTANGULAR, THROUGH HOLE MOUNT
封装: TO92-3
文件页数: 9/21页
文件大小: 222K
代理商: DS1822
DS1822
17 of 21
data from the DS1822 is valid for 15
μs after the falling edge that initiated the read time slot. Therefore,
the master must release the bus and then sample the bus state within 15
μs from the start of the slot.
Figure 15 illustrates that the sum of TINIT, TRC, and TSAMPLE must be less than 15μs for a read time slot.
Figure 16 shows that system timing margin is maximized by keeping TINIT and TRC as short as possible
and by locating the master sample time during read time slots towards the end of the 15
μs period.
DETAILED MASTER READ 1 TIMING Figure 15
RECOMMENDED MASTER READ 1 TIMING Figure 16
RELATED APPLICATION NOTES
The following Application Notes can be applied to the DS1822. These notes can be obtained from the
Dallas Semiconductor “Application Note Book,” via the Dallas website at http://www.dalsemi.com/, or
through our faxback service at (214) 450–0441.
Application Note 27: Understanding and Using Cyclic Redundancy Checks with Dallas Semiconductor
Touch Memory Product
Application Note 55: Extending the Contact Range of Touch Memories
Application Note 74: Reading and Writing Touch Memories via Serial Interfaces
Application Note 104: Minimalist Temperature Control Demo
Application Note 106: Complex MicroLANs
Application Note 108: MicroLAN—In the Long Run
Application
Note
162:
Interfacing
the
DS18X20/DS1822
1-Wire
Temperature
Sensor
in
a
Microcontroller Environment
Sample 1-Wire subroutines that can be used in conjunction with AN74 can be downloaded from the
Dallas website or anonymous FTP Site.
VPU
GND
1-WIRE BUS
15
μs
VIH of Master
TRC
TINT > 1μs
Master samples
LINE TYPE LEGEND
Bus master pulling low
Resistor pullup
VPU
GND
1-WIRE BUS
15
μs
VIH of Master
TRC =
small
TINT =
small
Master samples
相关PDF资料
PDF描述
DS1822+T&R DIGITAL TEMP SENSOR-SERIAL, 12BIT(s), 2Cel, RECTANGULAR, THROUGH HOLE MOUNT
DS1822Z DIGITAL TEMP SENSOR-SERIAL, 12BIT(s), 2Cel, RECTANGULAR, SURFACE MOUNT
DS18B20-PAR/T&R DIGITAL TEMP SENSOR-SERIAL, 12BIT(s), 0.50Cel, ROUND, THROUGH HOLE MOUNT
DS18B20-PAR DIGITAL TEMP SENSOR-SERIAL, 12BIT(s), 0.50Cel, ROUND, THROUGH HOLE MOUNT
DS18B20P DIGITAL TEMP SENSOR-SERIAL, 12BIT(s), 0.50Cel, RECTANGULAR, SURFACE MOUNT
相关代理商/技术参数
参数描述
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
DS1822+T&R 制造商:Maxim Integrated Products 功能描述:TEMP SENSOR DGTL 1-WIRE 3PIN TO-92 - Tape and Reel 制造商:Maxim Integrated Products 功能描述:IC THERMOMETER ECONO DIG TO-92 制造商:Maxim Integrated Products 功能描述:Board Mount Temperature Sensors 1-Wire Digital Thermometer