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參數(shù)資料
| 型號： | DS18S20-PAR |
| 廠商： | MAXIM INTEGRATED PRODUCTS INC |
| 元件分類： | Switch/Digital Output Temperature Sensor |
| 英文描述： | DIGITAL TEMP SENSOR-SERIAL, 9BIT(s), 0.50Cel, ROUND, THROUGH HOLE MOUNT |
| 封裝： | TO-92, 3 PIN |
| 文件頁數(shù)： | 6/20頁 |
| 文件大?。?/td> | 250K |
| 代理商： | DS18S20-PAR |
DS18S20-PAR
14 of 20
The DS18S20-PAR samples the 1-Wire bus during a window that lasts from 15
ms to 60 ms after the
master initiates the write time slot. If the bus is high during the sampling window, a 1 is written to the
DS18S20-PAR. If the line is low, a 0 is written to the DS18S20-PAR.
READ/WRITE TIME SLOT TIMING DIAGRAM Figure 12
READ TIME SLOTS
The DS18S20-PAR can only transmit data to the master when the master issues read time slots.
Therefore, the master must generate read time slots immediately after issuing a Read Scratchpad [BEh]
command, so that the DS18S20-PAR can provide the requested data. In addition, the master can generate
read time slots after issuing a Recall E2 [B8h] command to find out the recall status as explained in the
DS18S20-PAR FUNCTION COMMAND section.
All read time slots must be a minimum of 60
ms in duration with a minimum of a 1 ms recovery time
between slots. A read time slot is initiated by the master device pulling the 1-Wire bus low for a
minimum of 1
ms and then releasing the bus (see Figure 12). After the master initiates the read time slot,
the DS18S20-PAR will begin transmitting a 1 or 0 on bus. The DS18S20-PAR transmits a 1 by leaving
the bus high and transmits a 0 by pulling the bus low. When transmitting a 0, the DS18S20-PAR will
LINE TYPE LEGEND
Bus master pulling low
DS18S20-PAR pulling low
Resistor pullup
45
ms
15
ms
VPU
GND
1-WIRE BUS
60
ms < TX “0” < 120
1
ms < TREC <
DS18S20-PAR samples
MIN
TYP
MAX
15
ms
30
ms
> 1
ms
MASTER WRITE “0” SLOT
MASTER WRITE “1” SLOT
DS18S20-PAR samples
MIN
TYP
MAX
VPU
GND
1-WIRE BUS
15
ms
MASTER READ “0” SLOT
MASTER READ “1” SLOT
Master samples
START
OF SLOT
START
OF SLOT
> 1
ms
1
ms < TREC <
15
ms
15
ms
30
ms
15
ms
> 1
ms
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| DS18S20-SL+T&R | DIGITAL TEMP SENSOR-SERIAL, 9BIT(s), 0.50Cel, RECTANGULAR, THROUGH HOLE MOUNT |
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| DS18S20-PAR/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 |
| DS18S20-PAR+T&R | 制造商:Maxim Integrated Products 功能描述: 制造商:Maxim Integrated Products 功能描述:TEMP SENSOR DGTL 1-WIRE 3PIN TO-92 - Tape and Reel 制造商:Maxim Integrated Products 功能描述:IC THERM MICROLAN HI-PREC TO-92 制造商:Maxim Integrated Products 功能描述:Board Mount Temperature Sensors Prgmble Resolution 1-Wire Parasite Pwr |
| DS18S20-PAR+T&R | 功能描述:板上安裝溫度傳感器 Prgmble Resolution 1-Wire Parasite Pwr 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 |
| DS18S20-SL/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 |
| DS18S20-SL+T&R | 制造商:Maxim Integrated Products 功能描述:TEMP SENSOR DGTL 1-WIRE - Tape and Reel 制造商:Maxim Integrated Products 功能描述:IC THERM MICROLAN HI-PREC TO-92 制造商:Maxim Integrated Products 功能描述:Board Mount Temperature Sensors Prgmble Resolution 1-Wire Parasite Pwr |
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