參數(shù)資料
型號(hào): DS1775
廠商: MAXIM INTEGRATED PRODUCTS INC
元件分類: 溫度/濕度傳感器
英文描述: SOT23 Digital Thermometer and Thermostat(SOT23數(shù)字溫度計(jì)和恒溫控制器)
中文描述: DIGITAL TEMP SENSOR-SERIAL, 12BIT(s), RECTANGULAR, SURFACE MOUNT
封裝: SOT-23, 5 PIN
文件頁數(shù): 8/13頁
文件大?。?/td> 307K
代理商: DS1775
DS1775
8 of 13
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 (100kHz clock rate) and a fast mode (400kHz 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
Figure 5 details how data transfer is accomplished on the two–wire bus. Depending upon the state of the
R/W bit, two types of data transfer are possible:
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
DS1775_02 制造商:DALLAS 制造商全稱:Dallas Semiconductor 功能描述:SOT23-5 Digital Thermometer and Thermostat
DS1775_13 制造商:MAXIM 制造商全稱:Maxim Integrated Products 功能描述:Digital Thermometer and Thermostat in SOT23
DS1775R/T&R 制造商:Maxim Integrated Products 功能描述:DIGITAL THERMOMETER SOT23 T&R - Tape and Reel 制造商:Maxim Integrated Products 功能描述:IC THERMOM/STAT DIG 000 SOT-23-5
DS1775R/T&R 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(zhǔn)確性:+/- 1.5 C, +/- 3 C 溫度閾值: 數(shù)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(guān)閉: 安裝風(fēng)格: 封裝 / 箱體: 設(shè)備功能:Temperature and Humidity Sensor
DS1775R/TR1 制造商:DALLAS 制造商全稱:Dallas Semiconductor 功能描述:SOT23-5 Digital Thermometer and Thermostat