UCC5620 用于快速和 Ultra SCSI 的 27 线路 5V SE 终端

UCC5620 provides 27 lines of active termination for a SCSI (Small Computer Systems Interface) parallel bus. The SCSI standard recommends active termination at both ends of the cable.

The UCC5620 is ideal for high performance 5V SCSI systems. During disconnect the supply current is typically only 100uA, which makes the IC attractive for lower powered systems.

The UCC5620 is designed with a low channel capacitance of 2.5pF, which eliminates effects on signal integrity from disconnected terminators at interim points on the bus.

The power amplifier output stage allows the UCC5620 to source full termination current and sink active negation current when all termination lines are actively negated.

The UCC5620, as with all Unitrode terminators, is completely hot pluggable and appears as high impedance at the teminating channels with VTRMPWR = 0V or open

UCC5620
Number of Lines 27  
Driver Types Supported SE  
TERMPWR Voltage(Min)(V) 4  
TERMPWR Voltage(Max)(V) 5.25  
Disconnect Active State High  
Process Bi-CMOS  
Channel Capacitance(pF) 3  
Resistor Tolerance(ppm) 500  
Typical Sink Current(mA) 300  
Current Tolerance(%) 3  
Single-Ended Termination Impedance(ohms) 110  
Single-Ended Tolerance(%) 5  
Operating Temperature Range(C) 0 to 70  
Pin/Package 36SSOP
UCC5620 特性
UCC5620 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
UCC5620MWP ACTIVE 0 to 70 3.60 | 1ku SSOP (DCE) | 36 25 | TUBE  
UCC5620MWPG4 ACTIVE 0 to 70 3.60 | 1ku SSOP (DCE) | 36 25 | TUBE  
UCC5620MWPTR ACTIVE 0 to 70 3.10 | 1ku SSOP (DCE) | 36 1000 | LARGE T&R  
UCC5620MWPTRG4 ACTIVE 0 to 70 3.10 | 1ku SSOP (DCE) | 36 1000 | LARGE T&R  
UCC5620 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
UCC5620MWP Green (RoHS & no Sb/Br)  CU NIPDAU  Level-1-260C-UNLIM UCC5620MWP UCC5620MWP
UCC5620MWPG4 Green (RoHS & no Sb/Br)  CU NIPDAU  Level-1-260C-UNLIM UCC5620MWPG4 UCC5620MWPG4
UCC5620MWPTR Green (RoHS & no Sb/Br)  CU NIPDAU  Level-1-260C-UNLIM UCC5620MWPTR UCC5620MWPTR
UCC5620MWPTRG4 Green (RoHS & no Sb/Br)  CU NIPDAU  Level-1-260C-UNLIM UCC5620MWPTRG4 UCC5620MWPTRG4
UCC5620 应用技术支持与电子电路设计开发资源下载
  1. UCC5620 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)
UCC5620 工具和软件
培训内容 型号 软件/工具类型
UCC5620 评估模块 UCC5620EVM 开发电路板/EVM