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參數(shù)資料
| 型號： | DS1624S+T&R |
| 廠商： | Maxim Integrated |
| 文件頁數(shù)： | 3/18頁 |
| 文件大?。?/td> | 424K |
| 描述： | IC THERM/EEPROM DIG 256BYT 8SOIC |
| 產品培訓模塊： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 標準包裝： | 2,000 |
| 功能： | 溫度計，恒溫計 |
| 傳感器類型： | 內部 |
| 感應溫度： | -55°C ~ 125°C |
| 精確度： | ±0.5°C（最小值） |
| 拓撲： | EEPROM，寄存器庫 |
| 輸出類型： | 2 線串行 |
| 輸出警報： | 無 |
| 輸出風扇： | 無 |
| 電源電壓： | 2.7 V ~ 5.5 V |
| 工作溫度： | -55°C ~ 125°C |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 8-SOIC（0.209"，5.30mm 寬） |
| 供應商設備封裝： | 8-SO |
| 包裝： | 帶卷 (TR) |
DS1624
f 1
2-WIRE SERIAL DATA BUS
The DS1624 supports a bidirectional two-wire bus and data transmission protocol. A device that sends
data onto the bus is defined as a transmitter, and a device receiving data as a receiver. The device that
controls the message is called a master. The devices that are controlled by the master are slaves. The
bus must be controlled by a master device which generates the serial clock (SCL), controls the bus access,
and generates the START and STOP conditions. The DS1624 operates as a slave on the two-wire bus.
Connections to the bus are made via the open-drain I/O lines SDA and SCL. The following bus protocol
has been defined (see Figure 2):
" 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 standard mode (100kHz clock rate) and a fast mode (400kHz clock rate)
are defined. The DS1624 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.
相關PDF資料 |
PDF描述 |
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| DS1626S+ | IC THERMOMETER/STAT DIG 8-SOIC |
| DS1629S+T&R | IC THERM/RTC/CALENDAR DIG 8-SOIC |
| DS1631S+T&R | IC THERMOMETER DIG HI-PREC 8SOIC |
| DS1721U+T&R | IC THERMOMETER/STAT DIG HP 8USOP |
| DS1722S | IC THERMOMETER DIG 3-WIRE 8-SOIC |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| DS1625S | 制造商:Maxim Integrated Products 功能描述:DIGITAL THERMOMETER, 8 Pin, SOP |
| DS1626 | 制造商:DALLAS 制造商全稱:Dallas Semiconductor 功能描述:High-Precision 3-Wire Digital Thermometer and Thermostat |
| DS1626_07 | 制造商:DALLAS 制造商全稱:Dallas Semiconductor 功能描述:High-Precision 3-Wire Digital Thermometer and Thermostat |
| DS1626S | 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(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 關閉: 安裝風格: 封裝 / 箱體: 設備功能:Temperature and Humidity Sensor |
| DS1626S+ | 功能描述:板上安裝溫度傳感器 Digital Thermometer & Thermostat 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(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 關閉: 安裝風格: 封裝 / 箱體: 設備功能:Temperature and Humidity Sensor |
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