- 您現(xiàn)在的位置：買賣IC網(wǎng) > Datasheet目錄39 > DS1775R7+T&R (Maxim Integrated)IC THERMOM/STAT DIG 111 SOT-23-5 Datasheet資料下載
參數(shù)資料
| 型號(hào)： | DS1775R7+T&R |
| 廠商： | Maxim Integrated |
| 文件頁(yè)數(shù)： | 9/14頁(yè) |
| 文件大小： | 394K |
| 描述： | IC THERMOM/STAT DIG 111 SOT-23-5 |
| 產(chǎn)品培訓(xùn)模塊： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 標(biāo)準(zhǔn)包裝： | 3,000 |
| 功能： | 溫度計(jì)，恒溫計(jì) |
| 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?fù)洌?/td> | ADC，比較器，寄存器庫(kù) |
| 輸出類型： | I²C?/SMBus? |
| 輸出警報(bào)： | 是 |
| 輸出風(fēng)扇： | 無(wú) |
| 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： | SC-74A，SOT-753 |
| 供應(yīng)商設(shè)備封裝： | SOT-23-5 |
| 包裝： | 帶卷 (TR) |
第1頁(yè)第2頁(yè)第3頁(yè)第4頁(yè)第5頁(yè)第6頁(yè)第7頁(yè)第8頁(yè)當(dāng)前第9頁(yè)第10頁(yè)第11頁(yè)第12頁(yè)第13頁(yè)第14頁(yè)
DS1775
9 of 14
Figure 3. Data Transfer on 2-Wire Serial Bus
Figure 3 details how data transfer is accomplished on the 2-wire bus. Depending upon the state of the
R/W bit, two types of data transfer are possible:
1) Data transfer from a master transmitter to a slave receiver. The first byte transmitted by the
master is the slave address. Next follows a number of data bytes. The slave returns an acknowledge
bit after each received byte.
2) Data transfer from a slave transmitter to a master receiver. The first byte (the slave address) is
transmitted by the master. The slave then returns an acknowledge bit. Next follows a number of data
bytes transmitted by the slave to the master. The master returns an acknowledge bit after all received
bytes other than the last byte. At the end of the last received byte, a not acknowledge is returned.
The master device generates all the serial clock pulses and the START and STOP conditions. A transfer
is ended with a STOP condition or with a repeated START condition. Since a repeated START condition
is also the beginning of the next serial transfer, the bus is not released.
The DS1775 can operate in the following two modes:
1) Slave receiver mode: Serial data and clock are received through SDA and SCL. After each byte is
received, an acknowledge bit is transmitted. START and STOP conditions are recognized as the
beginning and end of a serial transfer. Address recognition is performed by hardware after reception
of the slave address and direction bit.
2) Slave transmitter mode: The first byte is received and handled as in the slave receiver mode.
However, in this mode, the direction bit indicates that the transfer direction is reversed. Serial data is
transmitted on SDA by the DS1775 while the serial clock is input on SCL. START and STOP
conditions are recognized as the beginning and end of a serial transfer.
SLAVE ADDRESS
A control byte is the first byte received following the START condition from the master device. The
control byte consists of a 4-bit control code; for the DS1775, this is set as 1001 binary for read and write
operations. The next three bits of the control byte are the device select bits (A2, A1, A0). These bits are
set to 000 (A2 = 0, A1 = 0, A0 = 0) for the DS1775R and vary according to the devices part number as
specified in the Ordering Information table. They are used by the master device to select which of eight
devices are to be accessed. The set bits are in effect the three least significant bits of the slave address.
The last bit of the control byte (R/
) defines the operation to be performed. When set to a 1 a read
operation is selected; when set to a 0 a write operation is selected. Following the START condition, the
DS1775 monitors the SDA bus checking the device type identifier being transmitted. Upon receiving the
1001 code and appropriate device select bits of 000, the DS1775 outputs an acknowledge signal on the
SDA line. See Figure 4.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| DS1821C+ | IC THERMOMETER/STAT PROG 3-TO92 |
| DS1825U+T&R | IC THERMOMETER DIGITAL 8-USOP |
| DS1842N+T&R | IC CURRENT MONITOR 14TDFN |
| DS18B20+PAR | IC THERM MICROLAN PROG-RES TO-92 |
| DS18B20Z/T&R | IC THERM MICROLAN PROG-RES 8SOIC |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| DS1775R7-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(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-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(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 |
| 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: |
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。