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| 型号： | DS2408S+T&R |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 11/39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
19 of 39
Figure 11. HARDWARE CONFIGURATION
OPEN-DRAIN
PORT PIN
RX = RECEIVE
TX = TRANSMIT
100
MOSFET
VPUP
RX
TX
RX
DATA
SEE
TEXT
SIMPLE BUS MASTER
DS2408 1-Wire PORT
RPUP
DS2480B
+5V
HOST CPU
VDD
POL
RXD
TXD
VPP
1-W
NC
GND
SERIAL IN
SERIAL OUT
SERIAL
PORT
TO 1-Wire DATA
DS2480B BUS MASTER
A multidrop bus consists of a 1-Wire bus with multiple slaves attached. At standard speed the 1-Wire bus
has a maximum data rate of 15.3kbps. Communication speed for 1-Wire devices can be typically boosted
to 142kbps by activating the overdrive mode; however, the maximum overdrive data rate for the DS2408
is 100kbps. The value of the pullup resistor primarily depends on the network size and load conditions.
For most applications the optimal value of the pullup resistor will be approximately 2.2k for standard
speed and 1.5k for overdrive speed.
The idle state for the 1-Wire bus is high. If for any reason a transaction needs to be suspended, the bus
MUST be left in the idle state if the transaction is to resume. If this does not occur and the bus is left low
for more than 16s (overdrive speed) or more than 120s (standard speed), one or more devices on the
bus may be reset. With the DS2408 the bus must be left low for no longer than 13s at overdrive speed to
ensure that none of the slave devices on the 1-Wire bus performs a reset. The DS2408 communicates
properly when used in conjunction with a DS2480B 1-Wire driver and serial port adapters that are based
on this driver chip. When operating the device in overdrive or below 4.5V, some 1-Wire I/O timing
values must be modified (see EC table).
相关PDF资料 |
PDF描述 |
|---|---|
| DS2409P/T&R | IC COUPLER MICROLAN 1-WIRE 6TSOC |
| DS2411P+T&R | IC SILICON SERIAL NUMBER 6TSOC |
| DS2413Q+T&R | IC SWITCH 2CH ADDRESS 6-TDFN |
| DS2480B+ | IC LINE DRVR W/SENSOR 1-W 8-SOIC |
| DS2482X-100+T | IC MASTER I2C-1WIRE 1CH 9-WLP |
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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