WMSIC Electronic Components

HGSEMI SN75176M/TR SN75176M

ModelSN75176M/TR
PackageSOP-8
BrandHGSEMI
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
HGSEMI SN75176M / TR
Type
HGSEMI
Minimum package
2500 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
HGSEMI
Electronic Component
SN75176M/TR
Electronic Component
1
Package
SOP-8
Type
Transceiver
Electronic Component
RS-485 / RS-422IC
Electronic Component
0.236g
Electronic Component
32
Electronic Component
1
Electronic Component
BM0264548640
Operating Temperature
40℃~+85℃
Operating Voltage
4.5V~5.5V
Receiver
1
Data
10Mbps
Communication
Electronic Component

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

SN75176M/TR 产品概述

一、产品简介

SN75176M/TR(HGSEMI 华冠)是一款用于RS-485/RS-422总线的半双工高速收发器,集成一个差分驱动器与一个差分接收器。器件工作电压范围为4.5V~5.5V,支持高达10Mbps的数据速率,适合多节点(最多32节点)工业与楼宇控制场合。器件采用SOP-8封装,提供卷带式包装(TR),便于贴片生产与自动化装配。

二、主要特性

  • 半双工差分收发器,1个驱动器 + 1个接收器
  • 工作电压:4.5V ~ 5.5V
  • 最高数据速率:10 Mbps(差分传输)
  • 网络节点数:最多32个设备并联
  • 低静态电流(静态待机):典型 900 μA,便于低功耗应用
  • 静电保护:I/O 任意端口支持 ±8 kV(接触放电)等级防护
  • 工作温度:-40 ℃ ~ +85 ℃,满足工业级环境要求
  • 支持使能/关断控制,具备热关断保护(Thermal shutdown),提高可靠性
  • 半双工通讯模式,适用于主从或多点总线拓扑
  • 封装:SOP-8;订购型式含 TR 卷盘包装

三、电气与设计要点

  • 接口管脚一般包含:差分驱动输入(DI)、驱动输出(A/B)、接收输出(RO)、接收使能/输出使能(RE/DE)、电源(VCC)、地(GND)。请参考最终封装引脚图进行连线。
  • 推荐在VCC与GND近邻放置0.1 μF陶瓷去耦电容以抑制电源噪声。
  • 半双工总线建议在链路两端各放置120 Ω差分终端电阻以抑制反射。为实现收发器断开或空闲时的确定性电平(fail-safe),常配合上拉/下拉偏置网络(例如若干百欧至千欧量级的阻值,根据线路长度及节点数调整)。
  • 当需要节能时,可通过器件使能引脚将收发器置于低功耗关断状态;在高温或异常功耗时,热关断功能将保护器件免受损害。

四、典型应用场景

  • 工业自动化现场总线(PLC与远端I/O)
  • 楼宇自控、门禁与安防系统
  • 电力监控、数据采集(SCADA)链路
  • 串行多点通信及远距离差分数据传输
  • 嵌入式系统与通信模块的现场接口电平转换

五、封装与订购信息

  • 品牌:HGSEMI(华冠)
  • 型号:SN75176M/TR
  • 封装:SOP-8(表面贴装)
  • 包装:TR = 卷带式(适合SMT贴片生产)
  • 使用前请确认产品批次号与数据手册,以获得完整的引脚定义、电气限值与降额曲线。

六、注意事项与可靠性建议

  • 在长距离或高速链路中,注意总线的阻抗匹配与走线对称,避免共模噪声导致误码。
  • 系统设计应考虑总线故障(短路、开路)情况下的保护措施,例如限流、保险与浪涌抑制元件。
  • 在高静电或强干扰环境部署时,建议在差分对旁并联小电容或TVS器件增强瞬态抑制能力(遵循器件允许的最大额定值)。
  • 产品符合工业温度范围并带热关断保护,但长期高温工作会缩短寿命,建议留足散热裕量。

如需完整电气特性曲线、引脚排列图和典型波形,请参考HGSEMI(华冠)提供的SN75176M/TR正式数据手册或联系供应商获取样片与评估板。

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