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XR5487E：5V Ultra High Speed RS-485/RS-422 PROFIBUS Transceivers, Advanced Failsafe, Hot Swap Protection, ±15kV ESD-Protected
The XR5486E-XR5488E family of RS-485 devices are designed for reliable, bidirectional communication on multipoint bus transmission lines. Each device contains one differential driver and one differential receiver. XR5488E is a half-duplex device while the other part numbers are full-duplex. All devices comply with TIA/EIA-485 and TIA/EIA-422 standards. Lead-free and RoHS compliant packages are available for all models. These devices are ruggedized for use in harsh operating conditions over the entire common mode voltage range from -7V to +12V. Receivers are specially designed to fail-safe to a logic high output state if the inputs are left un-driven or shorted. All RS- 485 bus-pins are protected against severe ESD events up to +/-15kV Air-Gap (IEC-61000-4-2), up to +/-8kV Contact Discharge (IEC-61000-4-2) and up to +/-15kV Human body Model. Drivers are protected from excess current flow caused by bus contention or output short-circuits by both an internal current limit and a thermal-overload shutdown. Devices are rated for Industrial (-40°C to +85°C) operating temperatures. Receivers have exceptionally high input impedance, which places only 1/8th the standard load on a bus. Up to 256 transceivers may coexist while preserving full signal margin. All devices operate from a single 5.0V power supply and draw negligible quiescent power. All versions except the XR5487E may independently enable and disable their driver and receiver and enter a low power shutdown mode if both driver and receiver are disabled. All outputs maintain high impedance in shutdown or when powered-off. For technical support or help choosing a product please email Exar’s Serial Technical Support group at: serialtechsupport@exar.com.
技术特性
Full Duplex RS-485 Transceiver
5V Single Supply Operation
Ultra High Speed Data Rate – 52Mbps
Higher Differential Driver Output Swing
Receiver failsafe on open, short or terminated lines
1/8th Unit Load, 256 transceivers on bus
Hot Swap glitch protection on control inputs
Driver short circuit current limit and thermal shutdown for overload protection
1μA shutdown mode
Industry standard package footprints
Robust ESD Specifications:
±15KV Human Body Model
数据手册S
XR5487E Datasheet
应用指南
AN-207, Advantages of Enhanced Receiver Failsafe Features
AN-214, RS-485 Transient vs. Fault Protection
ANI-13, RS-485 and RS-422 Physical Topologies
过程合格报告
XR5486EID-F & XR5488EID-F Reliability Report
Product Change Notification
七月 2013
规格 参数
电源电压Vcc(V) 5
发送器数量(Tx) 1
接收器数量(Rx) 1
双工 Full
数据传输速率(kbps) 52000
静电放电ESD(KV) 15
典型关断集成元件电路(μA) 1
接收开路故障防护 Yes
多点节点 256
订购型号
器件型号 封装编码 最低温度 最高温度 状态
XR5487EID-F NSOIC8 -40 85 Active
XR5487EIDTR-F NSOIC8 -40 85 Active
Download
七月 2013 SP708
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