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參數(shù)資料
| 型號(hào)： | DS1822-PAR |
| 元件分類： | 溫度傳感器 |
| 英文描述： | Econo 1-Wire?? Parasite-Power Digital Thermometer |
| 文件頁數(shù)： | 15/19頁 |
| 文件大小： | 138K |
| 代理商： | DS1822-PAR |
DS1822-PAR
15 of 19
resister. Output data from the DS1822-PAR is valid for 15
μ
s after the falling edge that initiated the read
time slot. Therefore, the master must release the bus and then sample the bus state within 15
μ
s from the
start of the slot.
Figure 13 illustrates that the sum of T
INIT
, T
RC
, and T
SAMPLE
must be less than 15
μ
s for a read time slot.
Figure 14 shows that system timing margin is maximized by keeping T
INIT
and T
RC
as short as possible
and by locating the master sample time during read time slots towards the end of the 15
μ
s period.
DETAILED MASTER READ 1 TIMING
Figure 13
RECOMMENDED MASTER READ 1 TIMING
Figure 14
RELATED APPLICATION NOTES
the Dallas Semiconductor “Application Note Book,” via the Dallas website at or through our faxback service at (214) 450–0441.
Application Note 27: “Understanding and Using Cyclic Redundancy Checks with Dallas Semiconductor
Touch Memory Product”
Application Note 55: “Extending the Contact Range of Touch Memories”
Application Note 74: “Reading and Writing Touch Memories via Serial Interfaces”
Application Note 104: “Minimalist Temperature Control Demo”
Application Note 106: “Complex MicroLANs”
Application Note 108: “MicroLAN – In the Long Run”
Sample 1-wire subroutines that can be used in conjunction with AN74 can be downloaded from the
Dallas website or anonymous FTP Site.
V
PU
GND
1-WIRE BUS
15
μ
s
VIH of Master
T
RC
T
INT
> 1
μ
s
Master samples
LINE TYPE LEGEND
Bus master pulling low
Resistor pullup
V
PU
GND
1-WIRE BUS
15
μ
s
VIH of Master
T
=
small
T
=
small
Master samples
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| DS1822-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 |
| DS1822-PAR_07 | 制造商:DALLAS 制造商全稱:Dallas Semiconductor 功能描述:Econo 1-Wire Parasite-Power Digital Thermometer |
| DS1822-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 THERMOMETER ECONO DIG TO-92 制造商:Maxim Integrated Products 功能描述:Board Mount Temperature Sensors 1-Wire Digital Thermometer |
| DS1822-PAR+T&R | 功能描述:板上安裝溫度傳感器 1-Wire Digital Thermometer 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 |
| DS-18-22-RS | 制造商:TE Connectivity 功能描述:Red sealed splice terminal,0.5-1.5sq.mm |
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