SN65HVD21 扩展共模 RS-485 收发器

The transceivers in the HVD2x family offer performance far exceeding typical RS−485 devices. In addition to meeting all requirements of the TIA/EIA−485−A standard, the HVD2x family operates over an extended range of common-mode voltage, and has features such as high ESD protection, wide receiver hysteresis, and failsafe operation. This family of devices is ideally suited for long-cable networks, and other applications where the environment is too harsh for ordinary transceivers.

These devices are designed for bidirectional data transmission on multipoint twisted-pair cables. Example applications are digital motor controllers, remote sensors and terminals, industrial process control, security stations, and environmental control systems

SN65HVD20 SN65HVD21 SN65HVD21A SN65HVD22 SN65HVD23 SN65HVD24
Drivers Per Package 1   1   1   1   1   1  
Receivers Per Package 1   1   1   1   1   1  
Supply Voltage(s)(V) 5   5   5   5   5   5  
ESD(kV) 16   16   16   16   16   16  
Temp Range(C) -40 to 85   -40 to 85     -40 to 85   -40 to 85   -40 to 85  
Signaling Rate(Mbps) 25   5   6   0.5   25   3  
ICC(Max)(mA) 9   12   12   9   11   14  
Fail Safe Idle, Open, Short   Idle, Open, Short   Idle, Open, Short   Idle, Open, Short   Open, Short   Open, Short  
Isolated No   No   No   No   No   No  
# of TX/RX 1 TX / 1 RX   1 TX / 1 RX   1 TX / 1 RX   1 TX / 1 RX   1 TX / 1 RX   1 TX / 1 RX  
Common Mode Range -20 to 25   -20 to 25   -20 to 25   -20 to 25   -20 to 25   -20 to 25  
Number of Nodes 64   256   256   256   64   256  
Duplex Half   Half   Half   Half   Half   Half  
Footprint SN75176   SN75176   SN75176   SN75176   SN75176   SN75176  
Comments Wide Common Mode, 25 Mbps   Wide Common Mode, 5 Mbps   Wide common mode, 6Mbps   Wide Common Mode, 0.5 Mbps   Receiver Equalization, Wide Common Mode, 25 Mbps   Receiver Equalization, Wide Common Mode, 3 Mbps  
Pin/Package 8PDIP, 8SOIC   8PDIP, 8SOIC   8SOIC   8PDIP, 8SOIC   8PDIP, 8SOIC   8PDIP, 8SOIC  
Rating Catalog   Catalog   Catalog   Catalog   Catalog   Catalog  
Fault Protection(V) -27 to 27   -27 to 27   -27 to 27   -27 to 27   -27 to 27   -27 to 27
SN65HVD21 特性
SN65HVD21 芯片订购指南
器件 状态 温度 价格 封装 | 引脚 封装数量 | 封装载体 丝印标记
SN65HVD21D ACTIVE -40 to 85 1.70 | 1ku SOIC (D) | 8 75 | TUBE  
SN65HVD21DG4 ACTIVE -40 to 85 1.70 | 1ku SOIC (D) | 8 75 | TUBE  
SN65HVD21DR ACTIVE -40 to 85 1.40 | 1ku SOIC (D) | 8 2500 | LARGE T&R  
SN65HVD21DRG4 ACTIVE -40 to 85 1.40 | 1ku SOIC (D) | 8 2500 | LARGE T&R  
SN65HVD21P ACTIVE -40 to 85 1.70 | 1ku PDIP (P) | 8 50 | TUBE  
SN65HVD21PE4 ACTIVE -40 to 85 1.70 | 1ku PDIP (P) | 8 50 | TUBE  
SN65HVD21 质量与无铅数据
器件 环保计划* 铅/焊球涂层 MSL 等级/回流焊峰 环保信息与无铅 (Pb-free) DPPM / MTBF / FIT 率
SN65HVD21D Green (RoHS & no Sb/Br)  CU NIPDAU  Level-1-260C-UNLIM SN65HVD21D SN65HVD21D
SN65HVD21DG4 Green (RoHS & no Sb/Br)  CU NIPDAU  Level-1-260C-UNLIM SN65HVD21DG4 SN65HVD21DG4
SN65HVD21DR Green (RoHS & no Sb/Br)  CU NIPDAU  Level-1-260C-UNLIM SN65HVD21DR SN65HVD21DR
SN65HVD21DRG4 Green (RoHS & no Sb/Br)  CU NIPDAU  Level-1-260C-UNLIM SN65HVD21DRG4 SN65HVD21DRG4
SN65HVD21P Pb-Free (RoHS)  CU NIPDAU  N/A for Pkg Type SN65HVD21P SN65HVD21P
SN65HVD21PE4 Pb-Free (RoHS)  CU NIPDAU  N/A for Pkg Type SN65HVD21PE4 SN65HVD21PE4
SN65HVD21 应用技术支持与电子电路设计开发资源下载
  1. SN65HVD21 数据资料 dataSheet 下载.PDF
  2. TI 德州仪器RS-485选型与价格 . xls
  3. 所选封装材料的热学和电学性质 (PDF 645 KB)
  4. 使用数字隔离器设计隔离式 I2C 总线接口 (zhct119.PDF, 339 KB)
  5. 1Q 2011 Issue Analog Applications Journal (slyt399.PDF, 964 KB)
  6. 接口选择指南 (Rev. D) (PDF 2994 KB)
  7. Signaling Rate vs. Distance for Differential Buffers (PDF 420 KB)
  8. Q1 2009 Issue Analog Applications Journal (slyt319.PDF, 1.39 MB)
  9. Isolated RS-485 Reference Design (PDF 80 KB)
  10. 无铅组件涂层的保存期评估 (PDF 1305 KB)
  11. Analog Signal Chain Guide (8.62 MB)
  12. Industrial Interface IC Solutions (101 KB)
SN65HVD21 工具和软件
培训内容 型号 软件/工具类型
SN65HVD21 评估模块 SN65HVD21EVM 开发电路板/EVM