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
- Complies with SCSI, SCSI–2 and SPI–2 Standards
- 6-pF Channel Capacitance during Disconnect
- 100-µA Supply Current in Disconnect Mode
- Meets SCSI Hot Plugging
- –400-mA Sourcing Current for Termination
- +400-mA Sinking Current for Active Negation Drivers
- Logic Command Disconnects all Termination Lines
- Trimmed Termination Current to 3%
- Trimmed Impedance to 3%
- Negative Clamping on all Signal Lines
- Current Limit and Thermal Shutdown Protection
UC5603 芯片订购指南
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
- UC5603 数据资料 dataSheet 下载.PDF
- TI 德州仪器SCSI 终端和收发器选型与价格 . xls
- 所选封装材料的热学和电学性质 (PDF 645 KB)
- 使用数字隔离器设计隔离式 I2C 总线接口 (zhct119.PDF, 339 KB)
- 1Q 2011 Issue Analog Applications Journal (slyt399.PDF, 964 KB)
- 接口选择指南 (Rev. D) (PDF 2994 KB)
- Signaling Rate vs. Distance for Differential Buffers (PDF 420 KB)
- Q1 2009 Issue Analog Applications Journal (slyt319.PDF, 1.39 MB)
- Isolated RS-485 Reference Design (PDF 80 KB)
- 无铅组件涂层的保存期评估 (PDF 1305 KB)
- Analog Signal Chain Guide (8.62 MB)
- 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 |
