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參數(shù)資料
| 型號(hào)： | DS1631S+ |
| 廠商： | MAXIM INTEGRATED PRODUCTS INC |
| 元件分類： | Switch/Digital Output Temperature Sensor |
| 英文描述： | DIGITAL TEMP SENSOR-SERIAL, 12BIT(s), 0.50Cel, RECTANGULAR, SURFACE MOUNT |
| 封裝： | 0.208 INCH, LEAD FREE, SOIC-8 |
| 文件頁(yè)數(shù)： | 4/15頁(yè) |
| 文件大?。?/td> | 196K |
| 代理商： | DS1631S+ |
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DS1631/DS1631A/DS1731
12 of 15
Figure 8. START, STOP, AND ACK SIGNALS
GENERAL 2-WIRE INFORMATION
All data is transmitted MSb first over the 2-wire bus.
One bit of data is transmitted on the 2-wire bus each SCL period.
A pullup resistor is required on the SDA line and, when the bus is idle, both SDA and SCL must remain
in a logic-high state.
All bus communication must be initiated with a START condition and terminated with a STOP
condition. During a START or STOP is the only time SDA is allowed to change states while SCL is
high. At all other times, changes on the SDA line can only occur when SCL is low: SDA must remain
stable when SCL is high.
After every 8-bit (1-byte) transfer, the receiving device must answer with an ACK (or NACK), which
takes one SCL period. Therefore, nine clocks are required for every one-byte data transfer.
INITIATING 2-WIRE COMMUNICATION
To initiate 2-wire communication, the master generates a START followed by a control byte containing
the DS1631, DS1631A, or DS1731 slave address. The R/W
bit of the control byte must be a 0 (“write”)
since the master next writes a command byte. The DS1631/DS1631A/DS1731 responds with an ACK
after receiving the control byte. This must be followed by a command byte from the master, which
indicates what type of operation is to be performed. The DS1631/DS1631A/DS1731 again respond with
an ACK after receiving the command byte.
If the command byte is a Start Convert T or Stop Convert T command (see Figure 9a), the transaction is
finished, and the master must issue a STOP to signal the end of the communication sequence. If the
command byte indicates a write or read operation, additional actions must occur as explained in the
following sections.
2-WIRE WRITES
The master can write data to the DS1631/DS1631A/DS1731 by issuing an Access Config, Access TH, or
Access TL command following the control byte (see Figures 9b and 9d). Since the R/W
byte was a 0 (“write”), the DS1631/DS1631A/DS1731 are already prepared to receive data. Therefore,
after receiving an ACK in response to the command byte, the master device can immediately begin
transmitting data. When writing to the configuration register, the master must send one byte of data, and
when writing to the TH or TL registers the master must send two bytes of data. After receiving each data
byte, the DS1631/DS1631A/DS1731 respond with an ACK, and the transaction is finished with a STOP
from the master.
SCL
SDA
START
Condition
STOP
Condition
…
ACK (or NACK)
From Receiver
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| DS1631AU | DIGITAL TEMP SENSOR-SERIAL, 12BIT(s), 0.50Cel, SQUARE, SURFACE MOUNT |
| DS1631 | DIGITAL TEMP SENSOR-SERIAL, 12BIT(s), 0.50Cel, RECTANGULAR, THROUGH HOLE MOUNT |
| DS1631AU+ | DIGITAL TEMP SENSOR-SERIAL, 12BIT(s), 0.50Cel, SQUARE, SURFACE MOUNT |
| DS1631S | DIGITAL TEMP SENSOR-SERIAL, 12BIT(s), 0.50Cel, RECTANGULAR, SURFACE MOUNT |
| DS1642-100 | 0 TIMER(S), REAL TIME CLOCK, PDIP24 |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| DS1631S/T&R | 制造商:Maxim Integrated Products 功能描述:0.5C 12C TEMP SENSOR 208S08 - Tape and Reel 制造商:Maxim Integrated Products 功能描述:IC THERMOMETER DIG HI-PREC 8SOIC |
| DS1631S/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 |
| DS1631S+ | 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(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 |
| DS1631S+T&R | 制造商:Maxim Integrated Products 功能描述:TEMP SENSOR DGTL 2-WIRE 8SOIC - Tape and Reel 制造商:Maxim Integrated Products 功能描述:IC THERMOMETER DIG HI-PREC 8SOIC |
| DS1631S+T&R | 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(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 |
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