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參數(shù)資料
| 型號： | DS75LXS+ |
| 廠商： | Maxim Integrated |
| 文件頁數(shù)： | 9/13頁 |
| 文件大小： | 228K |
| 描述： | IC THERMOMETER/STAT DIG 8-SOIC |
| 產(chǎn)品培訓模塊： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 標準包裝： | 100 |
| 功能： | 溫度計，恒溫計 |
| 傳感器類型： | 內(nèi)部 |
| 感應(yīng)溫度： | -55°C ~ 125°C |
| 精確度： | ±3°C（最小值） |
| 拓撲： | ADC（三角積分型），比較器，寄存器庫 |
| 輸出類型： | I²C?/SMBus? |
| 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（0.154"，3.90mm 寬） |
| 供應(yīng)商設(shè)備封裝： | 8-SOIC |
| 包裝： | 管件 |
| 產(chǎn)品目錄頁面： | 1435 (CN2011-ZH PDF) |
DS75LX: Digital Thermometer and Thermostat with Extended Addressing
9 of 13
Table 5. Pointer Definition
REGISTER
P1 P0
Temperature
0
0
Configuration
0
1
T
HYST
1
0
T
OS
1
1
2-WIRE SERIAL DATA BUS
The DS75LX communicates over a standard bidirectional, 2-wire serial data bus that consists of a serial clock
(SCL) signal and serial data (SDA) signal. The DS75LX interfaces to the bus through the SCL input pin and open-
drain SDA I/O pin. All communication is MSb first.
The following terminology is used to describe 2-wire communication:
Master Device: Microprocessor/microcontroller that controls the slave devices on the bus. The master device
generates the SCL signal and START and STOP conditions.
Slave: All devices on the bus other than the master. The DS75LX always functions as a slave.
Bus Idle or Not Busy: Both SDA and SCL remain high. SDA is held high by a pullup resistor when the bus is idle,
and SCL must either be forced high by the master (if the SCL output is push-pull) or pulled high by a pullup resistor
(if the SCL output is open drain).
Transmitter: A device (master or slave) that is sending data on the bus.
Receiver: A device (master or slave) that is receiving data from the bus.
START Condition: Signal generated by the master to indicate the beginning of a data transfer on the bus. The
master generates a START condition by pulling SDA from high to low while SCL is high (see Figure 5). A
repeated START is sometimes used at the end of a data transfer (instead of a STOP) to indicate that the master
will perform another operation.
STOP Condition: Signal generated by the master to indicate the end of a data transfer on the bus. The master
generates a STOP condition by transitioning SDA from low to high while SCL is high (see Figure 5). After the
STOP is issued, the master releases the bus to its idle state.
Acknowledge (ACK): When a device (either master or slave) is acting as a receiver, it must generate an
acknowledge (ACK) on the SDA line after receiving every byte of data. The receiving device performs an ACK by
pulling the SDA line low for an entire SCL period (see Figure 5). During the ACK clock cycle, the transmitting
device must release SDA. A variation on the ACK signal is the not acknowledge (NACK). When the master device
is acting as a receiver, it uses a NACK instead of an ACK after the last data byte to indicate that it is finished
receiving data. The master indicates a NACK by leaving the SDA line high during the ACK clock cycle.
Slave Address: Every slave device on the bus has a unique 7-bit address that allows the master to access that
device. The DS75LXs 7-bit bus address depends on the state of the external address pins A0A2. See Table 6.
The three address pins allow up to 27 DS75LXs to be multidropped on the same bus. When tying an address line
high or low, connect the address line directly to V
DD
or GND. Do not use series resistors on these pins.
Address Byte: The address byte is transmitted by the master and consists of the 7-bit slave address plus a
read/write (R/W
) bit (see Figure 6). If the master is going to read data from the slave device then R/W
= 1, and if
the master is going to write data to the slave device then R/W
= 0.
Pointer Byte: The pointer byte is used by the master to tell the DS75LX which register is going to be accessed
during communication. The six MSbs of the pointer byte (see Figure 7) are always 0 and the two LSbs correspond
to the desired register as shown in Table 6.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| DS75LXS+ | 功能描述:板上安裝溫度傳感器 w/Extended Addressing 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(guān)閉: 安裝風格: 封裝 / 箱體: 設(shè)備功能:Temperature and Humidity Sensor |
| DS75LXS+T&R | 制造商:Maxim Integrated Products 功能描述:TEMP SENSOR DGTL 2-WIRE 8SOIC N - Tape and Reel 制造商:Maxim Integrated Products 功能描述:IC THERMOMETER/STAT DIG 8-SOIC 制造商:Maxim Integrated Products 功能描述:Board Mount Temperature Sensors w/Extended Addressing |
| DS75LXS+T&R | 功能描述:板上安裝溫度傳感器 w/Extended Addressing 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(guān)閉: 安裝風格: 封裝 / 箱體: 設(shè)備功能:Temperature and Humidity Sensor |
| DS75LXSR | 制造商:MAXIM 制造商全稱:Maxim Integrated Products 功能描述:Digital Thermometer and Thermostat with Extended Addressing |
| DS75LXST | 制造商:MAXIM 制造商全稱:Maxim Integrated Products 功能描述:Digital Thermometer and Thermostat with Extended Addressing |
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