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DS2409P PDF预览

DS2409P

更新时间: 2024-01-04 13:55:40
品牌 Logo 应用领域
达拉斯 - DALLAS 电信集成电路电信电路光电二极管局域网
页数 文件大小 规格书
18页 416K
描述
MicroLAN Coupler

DS2409P 技术参数

是否Rohs认证: 不符合生命周期:Obsolete
零件包装代码:SOIC包装说明:3.70 X 4 MM, 1.50 MM HEIGHT, TSOC-6
针数:6Reach Compliance Code:not_compliant
HTS代码:8542.39.00.01风险等级:5.73
JESD-30 代码:R-PDSO-C6JESD-609代码:e0
长度:3.94 mm湿度敏感等级:1
功能数量:1端子数量:6
最高工作温度:85 °C最低工作温度:-40 °C
封装主体材料:PLASTIC/EPOXY封装代码:SOC
封装形状:RECTANGULAR封装形式:SMALL OUTLINE
峰值回流温度(摄氏度):240认证状态:Not Qualified
座面最大高度:1.5 mm标称供电电压:5 V
表面贴装:YES电信集成电路类型:TELECOM CIRCUIT
温度等级:INDUSTRIAL端子面层:Tin/Lead (Sn/Pb)
端子形式:C BEND端子节距:1.27 mm
端子位置:DUAL处于峰值回流温度下的最长时间:20
宽度:3.76 mmBase Number Matches:1

DS2409P 数据手册

 浏览型号DS2409P的Datasheet PDF文件第11页浏览型号DS2409P的Datasheet PDF文件第12页浏览型号DS2409P的Datasheet PDF文件第13页浏览型号DS2409P的Datasheet PDF文件第15页浏览型号DS2409P的Datasheet PDF文件第16页浏览型号DS2409P的Datasheet PDF文件第17页 
DS2409  
USAGE EXAMPLE  
Configuration: A bus master controls a MicroLAN consisting of a trunk with many DS2409s that create  
branches. Each of the DS2409s has a DS2430A connected to its auxiliary output to label its physical  
location in the network (see Figure 10). iButton devices are constantly arriving at or departing from the  
branches.  
Task: Identify one branch where an iButton has arrived and get the branch’s physical location. Determine  
the population on that particular branch.  
STEP MASTER MODE  
DATA (LSB FIRST)  
COMMENTS  
Reset pulse (480–960 µs)  
Presence pulse  
1
2
TX  
RX  
Reset  
Presence  
ECh  
3
TX  
Issue “conditional search ROM” command  
4
5
6
RX/RX/TX  
TX  
for each of the 64 ROM bits Identify and access one of the qualifying devices  
33h  
FFh  
Issue Smart-On Auxiliary command  
Send reset stimulus  
TX  
7
8
RX  
RX  
<data byte>*  
33h  
Get reset response byte with presence info  
Get confirmation byte  
9
TX  
TX  
RX  
TX  
RX  
TX  
TX  
TX  
TX  
RX  
RX  
TX  
CCh  
F0h  
<32 data bytes>  
Reset  
Presence  
55h  
<8 byte ROM ID>  
CCh  
Issue “skip ROM” command  
Issue “read memory” command  
Get branch location information (DS2430A)  
Reset pulse  
10  
11  
12  
13  
14  
15  
16  
17  
18  
19  
20  
21  
22  
23  
24  
25  
26  
27  
28  
29  
Presence pulse  
Issue Match ROM” command  
Access the previously identified coupler  
Issue Smart-On Main command  
Send reset stimulus  
Get reset response byte with presence info  
Get confirmation byte  
FFh  
<data byte>*  
CCh  
F0h  
Issue “search ROM” command  
RX/RX/TX  
TX  
for each of the 64 ROM bits Identify one of the devices connected  
Reset  
Presence  
55h  
Reset pulse  
Presence pulse  
RX  
TX  
TX  
TX  
RX  
TX  
RX  
Issue Match ROM” command  
Access the previously identified coupler  
Send all lines off command  
Get confirmation byte  
Reset pulse  
<8 byte ROM ID>  
66h  
66h  
Reset  
Presence  
Presence pulse  
repeat steps 12 to 21 for each of the remaining devices on the branch of the identified coupler  
* 00h or 01h if presence pulse, FFh if no presence pulse  
Note: The sequence of steps 12 to 21 logically decouples all other devices residing on the trunk from  
responding to the search ROM command. The All Lines Off command is required to clear the event flag  
that made the device respond to the conditional search command.  
14 of 18  
102199  

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