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参数资料
| 型号： | DS1822-PAR+T&R |
| 厂商： | Maxim Integrated |
| 文件页数： | 15/19页 |
| 文件大小： | 0K |
| 描述： | IC THERMOMETER ECONO DIG TO-92 |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 2,000 |
| 感应温度： | -55°C ~ 125°C |
| 输出类型： | 数字 |
| 电源电压： | 3 V ~ 5 V |
| 精确度： | ±2°C |
| 封装/外壳： | TO-226-3、TO-92-3（TO-226AA）成形引线 |
| 供应商设备封装： | TO-92-3 |
| 包装： | 带卷 (TR) |
DS1822-PAR
resister. Output data from the DS1822-PAR is valid for 15 μ s after the falling edge that initiated the read-
time slots. Therefore, the master must release the bus and then sample the bus state within 15 μ s from the
start of the slot.
Figure 13 illustrates that the sum of T INIT , T RC , and T SAMPLE must be less than 15 μ s for a read-time slots.
Figure 14 shows that system timing margin is maximized by keeping T INIT and T RC as short as possible
and by locating the master sample time during read-time slots towards the end of the 15 μ s period.
DETAILED MASTER READ 1 TIMING Figure 13
V PU
1-WIRE BUS
GND
VIH of Master
T INT > 1 μ s
T RC
Master samples
15 μ s
RECOMMENDED MASTER READ 1 TIMING Figure 14
V PU
1-WIRE BUS
GND
T INT = T RC =
small small
VIH of Master
Master samples
15 μ s
LINE TYPE LEGEND
Bus master pulling low
Resistor pullup
RELATED APPLICATION NOTES
The following Application Notes can be applied to the DS1822-PAR. 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.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| DS-18-22-RS | 制造商:TE Connectivity 功能描述:Red sealed splice terminal,0.5-1.5sq.mm |
| DS1822-W | 制造商:Maxim Integrated Products 功能描述:1-WIRE DIGITAL THERMOMETER SOIC - Rail/Tube |
| DS1822Z | 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 |
| DS1822Z/T | 制造商:MAXIM 制造商全称:Maxim Integrated Products 功能描述:Econo 1-Wire Digital Thermometer |
| DS1822Z/T&R | 制造商:Maxim Integrated Products 功能描述:1-WIRE DIGITAL THERMOMETER SOIC T&R - Tape and Reel 制造商:Maxim Integrated Products 功能描述:IC THERMOMETER ECONO DIG 8-SOIC |
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