DS2409P

更新时间： 2024-01-25 21:41:56

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

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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：	6	Reach Compliance Code：	not_compliant
HTS代码：	8542.39.00.01	风险等级：	5.73
JESD-30 代码：	R-PDSO-C6	JESD-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 mm	Base Number Matches：	1

DS2409P 数据手册

DS2409

remaining deselected. This significantly speeds up the analysis of topology and population in a

continuously changing network. The coupler also supports the bus master in detecting arrivals on the

inactive segments of the network by responding to the conditional search command. The control output

can be used to optically signal the on/off state of a branch or, together with the auxiliary output, for

handshaking in dual-master applications. The network size can be maximized by using a DS2480 line

driver at the bus master’s serial interface. The DS2480 compensates for the rising ground level caused by

the non-zero on-resistance of couplers in multi-level networks.

OVERVIEW

The DS2409 Coupler provides a means to create large MicroLAN networks with additional control

capability provided by an open-drain N-channel MOSFET that can be remotely switched via

communication over the 1-Wire bus (Figure 1). An auxiliary output can be used to label the branch by

connecting a programmed 1-Wire memory chip or as digital input. The DS2409 contains a factory-lasered

registration number that includes a unique 48-bit serial number, an 8-bit CRC, and an 8-bit family code

(1FH). The 64-bit ROM portion of the DS2409 not only creates an absolutely unique electronic

identification for the device itself but also is a means to locate and address the device in order to exercise

its control functions.

The DS2409 uses the standard Dallas Semiconductor 1-Wire protocol for data transfers (Figure 2), with

all data being read and written least significant bit first. Communication to and from the DS2409 requires

a single bi-directional line that is typically a port pin of a microcontroller. The 1-Wire bus master

(microcontroller) must first issue one of five ROM function commands: 1) Read ROM, 2) Match ROM,

3) Search ROM, 4) Skip ROM, or 5) Conditional Search ROM. These commands operate on the 64-bit

lasered ROM portion of each device and can singulate a specific device if many are present on the 1-Wire

line as well as indicate to the bus how many and what type of each device is present. After a ROM

function command is successfully executed, the control functions of the device can be exercised via the 1-

Wire bus.

BLOCK DIAGRAM Figure 1

2 of 18

102199

123 4 5 6 7...18

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与DS2409P相关器件

型号	品牌	描述	获取价格	数据表
DS2409P/T&R	DALLAS	Serial IO/Communication Controller, MOS, PDSO6,	获取价格
DS2411	DALLAS	Silicon Serial Number with VCC Input	获取价格
DS2411	MAXIM	Silicon Serial Number with Vcc Input	获取价格
DS2411	ADI	硅序列号，带有VCC输入	获取价格
DS2411P	DALLAS	Silicon Serial Number with VCC Input	获取价格
DS2411P	ROCHESTER	SPECIALTY MEMORY CIRCUIT, PDSO6, 0.150 INCH, TSOC-6	获取价格

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