UC5603 用于 SCSI 和快速 SCSI 的 9 线路 5V SE 端接器

The UC5603 provides 9 lines of active termination for a SCSI (Small Computers Systems Interface) parallel bus. The SCSI standard recommends active termination at both ends of the cable segment.

The UC5603 provides a disconnect feature which, when opened or driven high, will disconnect all terminating resistors, and disables the regulator; greatly reducing standby power. The output channels remain high impedance even without Termpwr applied. A low channel capacitance of 6 pF allows units at interim points of the bus to have little to no effect on the signal integrity.

Functionally the UC5603 is similar to its predecessor, the UC5601 – 18 line Active Terminator. Several electrical enhancements were incorporated in the UC5603, such as a sink/source regulator output stage to accommodate all signal lines at 5 V, while the regulator remains at its nominal value, reduced channel capacitance to 6 pF typical, and as with the UC5601, custom power packages are utilized to allow normal operation at full power conditions

UC5603
Number of Lines 9  
Driver Types Supported SE  
TERMPWR Voltage(Min)(V) 4  
TERMPWR Voltage(Max)(V) 5.25  
Disconnect Active State High  
Process Bi-Polar  
Channel Capacitance(pF) 6  
Resistor Tolerance(ppm) 50  
Typical Sink Current(mA) 400  
Current Tolerance(%) 3  
Single-Ended Termination Impedance(ohms) 110  
Single-Ended Tolerance(%) 3  
Operating Temperature Range(C) 0 to 70  
Pin/Package 16SOIC
UC5603 特性
UC5603 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
UC5603DP ACTIVE 0 to 70 2.85 | 1ku SOIC (D) | 16 40 | TUBE  
UC5603DPG4 ACTIVE 0 to 70 2.85 | 1ku SOIC (D) | 16 40 | TUBE  
UC5603DPR NRND 0 to 70   SOIC (D) | 16    
UC5603DPRTR NRND 0 to 70   SOIC (D) | 16    
UC5603DPTR ACTIVE 0 to 70 2.55 | 1ku SOIC (D) | 16 2500 | LARGE T&R  
UC5603DPTRG4 ACTIVE 0 to 70 2.55 | 1ku SOIC (D) | 16 2500 | LARGE T&R  
UC5603 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
UC5603DP Green (RoHS & no Sb/Br)  CU NIPDAU  Level-1-260C-UNLIM UC5603DP UC5603DP
UC5603DPG4 Green (RoHS & no Sb/Br)  CU NIPDAU  Level-1-260C-UNLIM UC5603DPG4 UC5603DPG4
UC5603DPR Green (RoHS & no Sb/Br)  CU NIPDAU  Level-1-260C-UNLIM UC5603DPR UC5603DPR
UC5603DPRTR Green (RoHS & no Sb/Br)  CU NIPDAU  Level-1-260C-UNLIM UC5603DPRTR UC5603DPRTR
UC5603DPTR Green (RoHS & no Sb/Br)  CU NIPDAU  Level-1-260C-UNLIM UC5603DPTR UC5603DPTR
UC5603DPTRG4 Green (RoHS & no Sb/Br)  CU NIPDAU  Level-1-260C-UNLIM UC5603DPTRG4 UC5603DPTRG4
UC5603 应用技术支持与电子电路设计开发资源下载
  1. UC5603 数据资料 dataSheet 下载.PDF
  2. TI 德州仪器SCSI 终端和收发器选型与价格 . 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)
UC5603 工具和软件
培训内容 型号 软件/工具类型
UC5603 评估模块 UC5603EVM 开发电路板/EVM