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参数资料
| 型号： | DS2408S+T&R |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 18/39页 |
| 文件大小： | 0K |
| 描述： | IC SWITCH 8-CHAN ADDRESS 16SOIC |
| 标准包装： | 2,500 |
| 接口： | 1 线 |
| 输入/输出数： | 8 |
| 中断输出： | * |
| 电源电压： | 2.8 V ~ 5.25 V |
| 工作温度： | * |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 16-SOIC（0.154"，3.90mm 宽） |
| 供应商设备封装： | 16-SOIC |
| 包装： | 带卷 (TR) |
| 包括： | * |
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DS2408
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Read/Write Time Slots
Data communication with the DS2408 takes place in time slots, which carry a single bit each. Write time
slots transport data from bus master to slave. Read time slots transfer data from slave to master. The
definitions of the write and read time slots are illustrated in Figure 14.
All communication begins with the master pulling the data line low. As the voltage on the 1-Wire line
falls below the threshold VTL, the DS2408 starts its internal time base. The tolerance of the slave time
base creates a slave-sampling window, which stretches from tSLSMIN to tSLSMAX. The voltage on the data
line at the sampling point determines whether the DS2408 decodes the time slot as 1 or 0.
Master-to-Slave
For a write-one time slot, the voltage on the data line must have crossed the VTHMAX threshold after the
write-one low time tW1LMAX has expired. For a write-zero time slot, the voltage on the data line must stay
below the VTHMIN threshold until the write-zero low time tW0LMIN has expired. For most reliable
communication, the voltage on the data line should not exceed VILMAX during the entire tW0L window.
After the VTHMAX threshold has been crossed, the DS2408 needs a recovery time tREC before it is ready for
the next time slot.
Figure 14. READ/WRITE TIMING DIAGRAM
Write-One Time Slot
VPUP
VIHMASTER
VTH
VTL
VILMAX
0V
DS2408
Sampling
Window
tSLSMIN
tF
tSLOT
tW1L
tSLSMAX
ε
Write-Zero Time Slot
tREC
VPUP
VIHMASTER
VTH
VTL
VILMAX
0V
DS2408
Sampling
Window
tSLSMIN
tF
tSLOT
tSLSMAX
tW0L
ε
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| DS2409P/T&R | IC COUPLER MICROLAN 1-WIRE 6TSOC |
| DS2411P+T&R | IC SILICON SERIAL NUMBER 6TSOC |
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相关代理商/技术参数 |
参数描述 |
|---|---|
| DS2409 | 制造商:DALLAS 制造商全称:Dallas Semiconductor 功能描述:MicroLAN Coupler |
| DS2409FRAB0 | 制造商:Thomas & Betts 功能描述:200A,REC,3P4W,MG,3P220V,SC |
| DS2409MP000 | 制造商:Thomas & Betts 功能描述:200A,PLG,3P4W,MG,409,3P220V |
| DS2409P | 功能描述:接口 - 专用 RoHS:否 制造商:Texas Instruments 产品类型:1080p60 Image Sensor Receiver 工作电源电压:1.8 V 电源电流:89 mA 最大功率耗散: 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:BGA-59 |
| DS2409P/T&R | 制造商:Maxim Integrated Products 功能描述:IC COUPLER MICROLAN 1-WIRE 6TSOC |
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