SN75ALS1178 双路差动驱动器和接收器
The SN75ALS1177 and SN75ALS1178 dual differential drivers and receivers are integrated circuits designed for bidirectional data communication on multipoint bus transmission lines. They are designed for balanced transmission lines and meet standards TIA/EIA-422-B and TIA/EIA-485-A.
The SN75ALS1177 combines dual 3-state differential line drivers and dual 3-state differential input line receivers, both of which operate from a single 5-V power supply. The drivers and receivers have active-high and active-low enables, respectively, which can be externally connected together to function as direction control. The SN75ALS1178 drivers each have an individual active-high enable. Fail-safe design ensures that when the receiver inputs are open, the receiver outputs are always high
|
SN75ALS1178 |
| Drivers Per Package |
2 |
| Receivers Per Package |
2 |
| Supply Voltage(s)(V) |
5 |
| ESD(kV) |
2 |
| Temp Range(C) |
0 to 70 |
| Signaling Rate(Mbps) |
10 |
| ICC(Max)(mA) |
50 |
| Fail Safe |
Open |
| Isolated |
No |
| # of TX/RX |
2 TX / 2 RX |
| Common Mode Range |
-7 to 12 |
| Number of Nodes |
32 |
| Duplex |
Full |
| Footprint |
MC34051 |
| Comments |
Upgrade to SN751178: Lower Power |
| Pin/Package |
16PDIP, 16SO |
| Rating |
Catalog |
| Fault Protection(V) |
-10 to 15 |
SN75ALS1178 特性
- Meet or Exceed Standards TIA/EIA-422-B and TIA/EIA-485-A
- Designed for Multipoint Bus Transmission on Long Bus Lines in Noisy Environments
- Low Supply-Current Requirement 50 mA Max
- Driver Positive- and Negative-Current Limiting
- Driver Common-Mode Output Voltage Range of -7 V to 12 V
- Thermal Shutdown Protection
- Driver 3-State Outputs Active-High Enable
- Receiver Common-Mode Input Voltage Range of -12 V to 12 V
- Receiver Input Sensitivity...±200 mV
- Receiver Hysteresis...50 mV Typ
- Receiver High Input Impedance...12k
Min
- Receiver 3-State Outputs Active-Low Enable for SN75ALS1177 Only
- Operate From Single 5-V Supply
SN75ALS1178 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 |
| SN75ALS1178N |
ACTIVE |
0 to 70 |
0.40 | 1ku |
PDIP (N) | 16 |
25 | TUBE |
|
| SN75ALS1178NE4 |
ACTIVE |
0 to 70 |
0.40 | 1ku |
PDIP (N) | 16 |
25 | TUBE |
|
SN75ALS1178 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 |
| SN75ALS1178N |
Pb-Free (RoHS) |
CU NIPD |
N/A for Pkg Type |
SN75ALS1178N |
SN75ALS1178N |
| SN75ALS1178NE4 |
Pb-Free (RoHS) |
CU NIPD |
N/A for Pkg Type |
SN75ALS1178NE4 |
SN75ALS1178NE4 |
SN75ALS1178 应用技术支持与电子电路设计开发资源下载
- SN75ALS1178 数据资料 dataSheet 下载.PDF
- TI 德州仪器RS-422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)
SN75ALS1178 工具和软件