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SP3497EEN-L/TR

器件型号:SP3497EEN-L/TR
器件类别:半导体    模拟混合信号IC   
厂商名称:Exar
标准:
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器件描述

RS-422/RS-485 Interface IC Full Duplex RS-422/ RS-485 Transceiver

参数
产品属性属性值
Product AttributeAttribute Value
制造商:
Manufacturer:
Exar
产品种类:
Product Category:
RS-422/RS-485 Interface IC
RoHS:YES
安装风格:
Mounting Style:
SMD/SMT
封装 / 箱体:
Package / Case:
SOIC-Narrow-14
系列:
Series:
SP3497E
封装:
Packaging:
Cut Tape
封装:
Packaging:
MouseReel
封装:
Packaging:
Reel
商标:
Brand:
Exar
Moisture Sensitive:Yes
产品类型:
Product Type:
RS-422/RS-485 Interface IC
工厂包装数量:
Factory Pack Quantity:
2500
子类别:
Subcategory:
Interface ICs
商标名:
Tradename:
Sipex

SP3497EEN-L/TR器件文档内容

3.3V RS-485/RS-422 Transceivers

                                              SP3495E / SP3496E / SP3497E
                                         High Speed, 3.3V RS-485/RS-422 Transceivers

                                         15kV ESD protection and Advanced                                                              Fail-safe

SP3495E – SP3497E transceivers are suitable for high speed
communication on multipoint or multidrop bus transmission lines.

They are designed for balanced data transmission and comply

with both RS-485 and RS-422 EIA Standards. Each dev­ ice con-

tains one differential driver and one differential receiver. Driver

differential outputs and receiver differential inputs are conn­ ected

internally to form a half-duplex input/output to the RS-485 bus.

Separate RE and DE pins enable and disable the driver and

receiver independently or may be externally connected together

as a direction control. The device enters a low power shutdown

mode if both driver and receiver are disabled. The bus-pin out­

puts of disabled or powered down devices are in high imped­

ance state. The high impedance driver output is maintained                                    Major Features

over the entire common-mode voltage range from -7 to +12V.

SP3495E – SP3497E operates from a single 3.3 V power supply.

The transceivers load the data bus only half as much as standard                              •                    3.3V Single Supply Operation

RS-485 unit load. This allows up to 64 devices to be connected                                •                    High Speed Up to 32 Mbps

simultaneously on a bus without violating required RS-485 signal

margin and without using repeaters. Only one driver should be                                 •                    ±15kV ESD Protection

enabled and active at any time on a shared bus. Excessive pow-                                •                    Advanced Fail-safe

er dissipation caused by bus contention or by shorting outputs to

ground or a voltage source is prevented by short circuit protec­                              •                    Hot Swap Glitch Protection

tion and thermal shutdown. This feature forces the driver output                              •                    Half Unit Load, 64 Transceivers on the Bus

into high impedance state if the absolute value of the output cur­
rent exceeds 250mA or if junction temperature exceeds 165oC.                                  •                    Driver Short Circuit Protection

Receivers will fail-safe to a logic-one output state if the inputs are                        •                    Thermal Shutdown Overload Protection

unconnected (floating), shorted or terminated data lines. All in-                             •                    Industry Standard Pin Out

puts and outputs have ESD protection. All RS-485 input and out-

put bus pins are ESD protected up to ±15kV Human Body Model.

Ordering Information                                                                          Applications

                                      Tape /  Temperature                                     •                    Factory Automation Control

Part #               Pb-free          Reel    range                       Package Type        •                    Industrial Process Control

SP3495EEN            -L                  /TR  -40 to +85oC                8 pin SO-narrow     •                    High Speed Motor Control

SP3496EEN            -L                  /TR  -40 to +85oC                8 pin SO-narrow     •                    Building Automation and Environmental Controls

SP3497EEN            -L                  /TR  -40 to +85oC                14 pin SO-narrow    •                    Building Security Systems

                                                                                              •                    Remote Metering and Monitoring

Typical Application Circuit

Exar Corporation  •  48720 Kato Road  •  Fremont, CA 94538  •  U.S.A.  •  +1.510.668.7000  •  fax +1.510.668.7001  •  www.exar.com     FLY0509_SP3495E / SP3496E / SP3497E  ©2009 Exar Corporation
Mouser Electronics

Authorized Distributor

Click to View Pricing, Inventory, Delivery &    Lifecycle  Information:

Exar:

SP3495EEN-L/TR  SP3496EEN-L/TR  SP3497EEN-L/TR
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