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參數資料
| 型號： | DS1775R/TRL |
| 廠商： | DALLAS SEMICONDUCTOR |
| 元件分類： | Switch/Digital Output Temperature Sensor |
| 英文描述： | DIGITAL TEMP SENSOR-SERIAL, 12BIT(s), 2Cel, RECTANGULAR, SURFACE MOUNT |
| 封裝： | SOT-23, 5 PIN |
| 文件頁數： | 12/13頁 |
| 文件大?。?/td> | 201K |
| 代理商： | DS1775R/TRL |
DS1775
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The following bus protocol has been defined (See Figure 4):
Data transfer may be initiated only when the bus is not busy.
During data transfer, the data line must remain stable whenever the clock line is HIGH. Changes in the
data line while the clock line is high will be interpreted as control signals.
Accordingly, the following bus conditions have been defined:
Bus not busy: Both data and clock lines remain HIGH.
Start data transfer: A change in the state of the data line, from HIGH to LOW, while the clock is HIGH,
defines a START condition.
Stop data transfer: A change in the state of the data line, from LOW to HIGH, while the clock line is
HIGH, defines the STOP condition.
Data valid: The state of the data line represents valid data when, after a START condition, the data line is
stable for the duration of the HIGH period of the clock signal. The data on the line must be changed during
the LOW period of the clock signal. There is one clock pulse per bit of data.
Each data transfer is initiated with a START condition and terminated with a STOP condition. The number
of data bytes transferred between START and STOP conditions is not limited, and is determined by the
master device. The information is transferred byte–wise and each receiver acknowledges with a ninth bit.
Within the bus specifications a regular mode (100 kHz clock rate) and a fast mode (400 kHz clock rate) are
defined. The DS1775 works in both modes.
Acknowledge: Each receiving device, when addressed, is obliged to generate an acknowledge after the
reception of each byte. The master device must generate an extra clock pulse which is associated with this
acknowledge bit.
A device that acknowledges must pull down the SDA line during the acknowledge clock pulse in such a
way that the SDA line is stable LOW during the HIGH period of the acknowledge related clock pulse. Of
course, setup and hold times must be taken into account. A master must signal an end of data to the slave by
not generating an acknowledge bit on the last byte that has been clocked out of the slave. In this case, the
slave must leave the data line HIGH to enable the master to generate the STOP condition.
DATA TRANSFER ON 2–WIRE SERIAL BUS Figure 4
相關PDF資料 |
PDF描述 |
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| DS1775R/TR6 | DIGITAL TEMP SENSOR-SERIAL, 12BIT(s), 2Cel, RECTANGULAR, SURFACE MOUNT |
| DS1775R/TR1 | DIGITAL TEMP SENSOR-SERIAL, 12BIT(s), 2Cel, RECTANGULAR, SURFACE MOUNT |
| DS1775R/TR7 | DIGITAL TEMP SENSOR-SERIAL, 12BIT(s), 2Cel, RECTANGULAR, SURFACE MOUNT |
| DS1775R/TR1 | DIGITAL TEMP SENSOR-SERIAL, 12BIT(s), 2Cel, RECTANGULAR, SURFACE MOUNT |
| DS1775R4&R | DIGITAL TEMP SENSOR-SERIAL, 9BIT(s), 2Cel, RECTANGULAR, SURFACE MOUNT |
相關代理商/技術參數 |
參數描述 |
|---|---|
| DS1775R-U | 功能描述:板上安裝溫度傳感器 RoHS:否 制造商:Omron Electronics 輸出類型:Digital 配置: 準確性:+/- 1.5 C, +/- 3 C 溫度閾值: 數字輸出 - 總線接口:2-Wire, I2C, SMBus 電源電壓-最大:5.5 V 電源電壓-最小:4.5 V 最大工作溫度:+ 50 C 最小工作溫度:0 C 關閉: 安裝風格: 封裝 / 箱體: 設備功能:Temperature and Humidity Sensor |
| DS1776 | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:PI-Bus Transceiver |
| DS1776E/883 | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:PI-Bus Transceiver |
| DS1776J/883 | 制造商:Rochester Electronics LLC 功能描述:- Bulk 制造商:Texas Instruments 功能描述: |
| DS1776W/883 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Single 8-bit Bus Transceiver |
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