WMSIC Electronic Components

UTC UTRS485G-S08-R UTRS485G

ModelUTRS485G-S08-R
PackageSOP-8
BrandUTC
Price Price on request Electronic component prices change quickly with market supply and demand. Please refer to the latest WMSIC quotation for current pricing.
Configuration
1 options
Configuration 26+

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
UTC UTRS485G-S08-R
Type
UTC
Minimum package
2500

Technical parameters

Electronic Component
UTC
Electronic Component
UTRS485G-S08-R
Electronic Component
1
Package
SOP-8
Electronic Component
Buffers / Drivers / Transceivers
Electronic Component
UTRS485
Electronic Component
0.202g
Electronic Component
1
Features
Output; Output
Electronic Component
BM0231071418
Operating Temperature
40℃~+85℃
Operating Voltage
4.75V~5.25V
Type
Flip-Flop
Output Type
Electronic Component
Type
Electronic Component
Static Current(Iq)
500uA

For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.

UTRS485G-S08-R 产品概述

一、产品简介

UTRS485G-S08-R 是 UTC(友顺)推出的一款工业级差分收发器,封装为 SOP-8。该器件工作电压为 4.75V ~ 5.25V,工作温度范围为 -40℃ 到 +85℃,静态电流(Iq)极低,仅 500µA,且输出为三态(三态输出使能总线共享成为可能)。在负载电容 100pF、5V 工作条件下,典型传播延迟 tpd ≈ 50ns,适合中高速数据通信应用。当前产品描述归类为未分类,但从命名和特性上可将其归为 RS-485/RS-422 类差分收发器系列。

二、主要特性

  • 工作电压:4.75V ~ 5.25V,适配标准 5V 系统。
  • 工作温度:-40℃ ~ +85℃,满足大多数工业环境要求。
  • 低功耗:静态电流仅 500µA,利于待机和远程供电系统。
  • 三态输出:便于多节点总线的总线仲裁与连接。
  • 传播延迟:约 50ns(在 5V、100pF 条件下),具备较好的时延性能,适合中高速数据传输。
  • 封装形式:SOP-8,便于 PCB 布局与自动化贴装。

(注:具体的电气参数、总线容性、容错及保护能力等,请以官方数据手册为准。)

三、典型应用场景

  • 工业现场总线通讯(如楼宇自动化、现场仪表网络等)。
  • 工业控制与监控系统(PLC 外围模块、I/O 扩展、远程数据传输)。
  • 能源与电力监测(远程抄表、数据采集单元)。
  • 串行多点通信网络(需要多节点共用差分总线的系统)。
  • 其它需要可靠差分通信且工作于工业温度范围的场合。

四、功能与使用要点

  • 三态输出控制:器件提供驱动使能/停止控制(DE/RE 或等效引脚),可将驱动器置于高阻态,从而实现多节点共享总线的功能。使用时应正确管理驱动器使能时序,避免总线冲突。
  • 低静态电流:Iq = 500µA 有利于节能系统,但在需要快速唤醒或连续高数据吞吐时,仍需关注切换期间的瞬态电流与系统总体能耗。
  • 时延与负载:50ns 的传播延迟是在指定电容负载下给出的典型值。系统设计中应考虑线长、终端电阻与总线电容带来的时序与信号完整性影响。
  • 终端与偏置:推荐在总线两端使用匹配终端电阻以减少反射,同时在多节点系统中加入偏置电阻(Fail-safe 偏置)保证空闲总线有确定的逻辑电平。具体阻值与布置请依据线路阻抗与节点数量调整。

五、PCB 布局与可靠性建议

  • 电源旁加 decoupling 电容(如 0.1µF 陶瓷)靠近 VCC 与 GND 引脚,减少电源瞬态噪声。
  • 差分对(A/B)走线要求长度匹配与紧密耦合,避免产生差模干扰与共模偏移。
  • 总线引出处尽量减少分支(stub),长分支会导致反射与信号失真。
  • 在易受雷击或高干扰环境中使用外部浪涌抑制或 TVS 二极管以提升系统抗扰能力。
  • 注意散热与布局,虽然器件功耗低,但工业环境下仍需保证器件周边温度不超过规格范围。

六、封装与订购信息

  • 品牌:UTC(友顺)
  • 型号:UTRS485G-S08-R
  • 封装:SOP-8
  • 描述分类:未分类(建议在选型与采购时与供应商确认具体功能与数据手册)

七、设计与选型注意事项

  • 在最终设计前,务必下载并阅读官方数据手册,确认各引脚定义、时序、绝对最大额定值以及典型应用电路。
  • 若系统对抗 ESD、浪涌、电磁兼容有高要求,应评估是否需要额外的保护元件或选择具备更高保护等级的器件。
  • 若需要 3.3V 或更宽电源电压范围的兼容,请确认是否有相应型号或考虑电平转换方案。

如需我帮您依据具体电路拓扑绘制典型接线建议、计算终端及偏置电阻,或对比同类器件的性能差异与选型建议,请提供更多系统参数与应用场景。

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