SN75971B SCSI 差动转换器控制
The SN75971B SCSI differential converter-data is a 9-channel RS-485 transceiver. When used in conjunction with its companion control transceiver, the SN75970B, the resulting chip set provides the superior electrical performance of differential SCSI from a single-ended SCSI bus or controller. A 16-bit Ultra-SCSI (or Fast-20) SCSI bus can be implemented with just three devices (two data and one control) in the space efficient, 56-pin, shrink small-outline package (SSOP) or thin shink small outline package (TSSOP) and a few external components. An 8-bit SCSI bus requires only one data and one control transceiver.
The SN75971B is available in a B2 (20 Mxfer) version and a B1 (10 Mxfer) version.
In a typical differential SCSI node, the SCSI controller provides an enable for each external RS-485 transceiver channel
|
SN75971B |
| Drivers Per Package |
9 |
| Receivers Per Package |
9 |
| Signaling Rate(Mbps) |
20 |
| ICC(Max)(mA) |
50 |
| Supply Voltage(s)(Min)(V) |
5 |
| Supply Voltage(s)(Max)(V) |
5 |
| Operating Temperature Range(C) |
0 to 70 |
| Pin/Package |
56SSOP, 56TSSOP |
| Isolated |
No |
| Approx. Price (US$) |
16.35 | 1ku |
| Number of Nodes |
32 |
| # of TX/RX |
9 TX / 9 RX |
| Temp Range(C) |
0 to 70 |
SN75971B 特性
- Provides High-Voltage Differential SCSI From Single-Ended Controller When Used With the SN75970B Control Transceiver
- Meets or Exceeds the Requirements of EIA Standard RS-485 and ISO-8482 Standards
- ESD Protection on Bus Pins to 12 kV
- Packaged in Shrink Small-Outline Package with 25 mil Terminal Pitch and Thin Small-Package with 20 mil Terminal Pitch
- Low Disabled-Supply Current 32 mA Typ
- Thermal Shutdown Protection
- Positive- and Negative-Current Limiting
- Power-Up/-Down Glitch Protection
- Open-Circuit Failsafe Receivers
SN75971B 芯片订购指南
SN75971B 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 |
| SN75971B1DL |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-2-260C-1 YEAR |
SN75971B1DL |
SN75971B1DL |
| SN75971B1DLG4 |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-2-260C-1 YEAR |
SN75971B1DLG4 |
SN75971B1DLG4 |
| SN75971B2DGG |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-2-260C-1 YEAR |
SN75971B2DGG |
SN75971B2DGG |
| SN75971B2DGGG4 |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-2-260C-1 YEAR |
SN75971B2DGGG4 |
SN75971B2DGGG4 |
| SN75971B2DL |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-2-260C-1 YEAR |
SN75971B2DL |
SN75971B2DL |
| SN75971B2DLG4 |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-2-260C-1 YEAR |
SN75971B2DLG4 |
SN75971B2DLG4 |
SN75971B 应用技术支持与电子电路设计开发资源下载
- SN75971B 数据资料 dataSheet 下载.PDF
- TI 德州仪器RS-485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)
SN75971B 工具和软件