SN55976A 9 通道差动收发器
The SN75976A is an improved replacement for the industry's first 9-channel RS-485 transceiver -- the SN75LBC976. The A version offers improved switching performance, a smaller package, and higher ESD protection. The SN75976A is offered in two versions. The '976A2 skew limits of 4 ns for the differential drivers and 5 ns for the differential receivers complies with the recommended skew budget of the Fast-20 SCSI standard for data transfer rates up to 20 million transfers per second. The '976A1 supports the Fast SCSI skew budget for 10 million transfers per second. The skew limit ensures that the propagation delay times, not only from channel-to-channel but from device-to-device, are closely matched for the tight skew budgets associated with high-speed parallel data buses.
|
SN55976A |
| Drivers Per Package |
9 |
| Receivers Per Package |
9 |
| Supply Voltage(s)(V) |
5 |
| ESD(kV) |
12 |
| Temp Range(C) |
-55 to 125 |
| Signaling Rate(Mbps) |
20 |
| ICC(Max)(mA) |
60 |
| Isolated |
No |
| # of TX/RX |
9 TX / 9 RX |
| Common Mode Range |
-7 to 12 |
| Number of Nodes |
32 |
| Duplex |
Half |
| Comments |
Differential SCSI: Fast-20 Mbps |
| Pin/Package |
56CFP |
| Rating |
Military |
| Fault Protection(V) |
-10 to 15 |
SN55976A 特性
- Improved Speed and Package Replacement for the SN75LBC976
- Designed to Operate at up to 20 Million Data Transfers per Second (Fast-20 SCSI)
- Nine Differential Channels for the Data and Control Paths of the Small Computer Systems Interface (SCSI) and Intelligent Peripheral Interface (IPI)
- SN75976A Packaged in Shrink Small-Outline Package with 25-Mil Terminal Pitch (DL) and Thin Shrink Small-Outline Package with 20-Mil Terminal Pitch (DGG)
- SN55976A Packaged in a 56-Pin Ceramic Flat Pack (WD)
- Two Skew Limits Available
- ESD Protection on Bus Terminals
Exceeds 12 kV
- Low Disabled Supply Current 8 mA Typ
- Thermal Shutdown Protection
- Positive- and Negative-Current Limiting
- Power-Up/Down Glitch Protection
SN55976A 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 |
| 5962-9689301QXA |
ACTIVE |
-55 to 125 |
190.79 | 100u |
CFP (WD) | 56 |
1 | TUBE |
|
| SN55976A1WD |
ACTIVE |
-55 to 125 |
174.90 | 100u |
CFP (WD) | 56 |
1 | TUBE |
|
| SNJ55976A1WD |
ACTIVE |
-55 to 125 |
190.79 | 100u |
CFP (WD) | 56 |
1 | TUBE |
|
SN55976A 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 |
| 5962-9689301QXA |
TBD |
A42 |
N/A for Pkg Type |
5962-9689301QXA |
5962-9689301QXA |
| SN55976A1WD |
TBD |
A42 |
N/A for Pkg Type |
SN55976A1WD |
SN55976A1WD |
| SNJ55976A1WD |
TBD |
A42 |
N/A for Pkg Type |
SNJ55976A1WD |
SNJ55976A1WD |
SN55976A 应用技术支持与电子电路设计开发资源下载
- SN55976A 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)
SN55976A 工具和软件