UCC5618 最低电容的 18 线路 3-5V SE 端接器,用于 SCSI 至具有反向传感反向断开功能的 Ultra SCSI

The UCC5618 provides 18 lines of active termination for a SCSI (Small Computers Systems Interface) parallel bus. The SCSI standard recommends and Fast–20 (Ultra) requires active termination at both ends of the cable.

Pin for pin compatible with the UC5601 and UC5608, the UCC5618 is ideal for high performance 5V SCSI systems, Termpwr 4.0–5.25V. During disconnect the supply current is only 50µA typical, which makes the IC attractive for lower powered systems.

The UCC5618 is designed with a low channel capacitance of 2pF, which eliminates effects on signal integrity from disconnected terminators at interim points on the bus.

The power amplifier output stage allows the UCC5618 to source full termination current and sink active negation current when all termination lines are actively negated

UCC5618
Number of Lines 18  
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) 2.5  
Resistor Tolerance(ppm) 500  
Typical Sink Current(mA) 200  
Current Tolerance(%) 3  
Single-Ended Termination Impedance(ohms) 110  
Single-Ended Tolerance(%) 5  
Operating Temperature Range(C) 0 to 70  
Pin/Package 28PLCC, 28SOIC, 28TSSOP  
UCC5618 特性
UCC5618 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
UCC5618DWP ACTIVE 0 to 70 2.65 | 1ku SOIC (DW) | 28 20 | TUBE  
UCC5618DWPG4 ACTIVE 0 to 70 2.65 | 1ku SOIC (DW) | 28 20 | TUBE  
UCC5618DWPTR ACTIVE 0 to 70 2.30 | 1ku SOIC (DW) | 28 1000 | LARGE T&R  
UCC5618DWPTRG4 ACTIVE 0 to 70 2.30 | 1ku SOIC (DW) | 28 1000 | LARGE T&R  
UCC5618PWP ACTIVE 0 to 70 2.65 | 1ku TSSOP (PW) | 28 50 | TUBE  
UCC5618PWPG4 ACTIVE 0 to 70 2.65 | 1ku TSSOP (PW) | 28 50 | TUBE  
UCC5618PWPTR ACTIVE 0 to 70 2.30 | 1ku TSSOP (PW) | 28 2000 | LARGE T&R  
UCC5618PWPTRG4 ACTIVE 0 to 70 2.30 | 1ku TSSOP (PW) | 28 2000 | LARGE T&R  
UCC5618QP ACTIVE 0 to 70 2.90 | 1ku PLCC (FN) | 28 37 | TUBE  
UCC5618QPTR ACTIVE 0 to 70 2.55 | 1ku PLCC (FN) | 28 750 | LARGE T&R  
UCC5618 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
UCC5618DWP Green (RoHS & no Sb/Br)  CU NIPDAU  Level-2-260C-1 YEAR UCC5618DWP UCC5618DWP
UCC5618DWPG4 Green (RoHS & no Sb/Br)  CU NIPDAU  Level-2-260C-1 YEAR UCC5618DWPG4 UCC5618DWPG4
UCC5618DWPTR Green (RoHS & no Sb/Br)  CU NIPDAU  Level-2-260C-1 YEAR UCC5618DWPTR UCC5618DWPTR
UCC5618DWPTRG4 Green (RoHS & no Sb/Br)  CU NIPDAU  Level-2-260C-1 YEAR UCC5618DWPTRG4 UCC5618DWPTRG4
UCC5618PWP Green (RoHS & no Sb/Br)  CU NIPDAU  Level-2-260C-1 YEAR UCC5618PWP UCC5618PWP
UCC5618PWPG4 Green (RoHS & no Sb/Br)  CU NIPDAU  Level-2-260C-1 YEAR UCC5618PWPG4 UCC5618PWPG4
UCC5618PWPTR Green (RoHS & no Sb/Br)  CU NIPDAU  Level-2-260C-1 YEAR UCC5618PWPTR UCC5618PWPTR
UCC5618PWPTRG4 Green (RoHS & no Sb/Br)  CU NIPDAU  Level-2-260C-1 YEAR UCC5618PWPTRG4 UCC5618PWPTRG4
UCC5618QP Green (RoHS & no Sb/Br)  CU NIPDAU  Level-3-260C-168 HR UCC5618QP UCC5618QP
UCC5618QPTR Green (RoHS & no Sb/Br)  CU NIPDAU  Level-3-260C-168 HR UCC5618QPTR UCC5618QPTR
UCC5618 应用技术支持与电子电路设计开发资源下载
  1. UCC5618 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)
UCC5618 工具和软件
培训内容 型号 软件/工具类型
UCC5618 评估模块 UCC5618EVM 开发电路板/EVM