产品概览
The SN65HVD74DR is a Texas Instruments 3.3 V full-duplex RS-485 transceiver with ±12 kV IEC ESD protection and 20 Mbps data rate. The device is fully enabled with no external enable pins, features 70 mV receiver hysteresis for noise immunity, and supports up to 256 nodes on the bus. It is packaged in an 8-pin SOIC and operates from -40°C to +125°C.
主要规格
| 数据速率 | 20 Mbps |
| Duplex | Full-Duplex |
| 电源电压 | 3.3 V |
| ESD (IEC) | ±12 kV contact |
| ESD (HBM) | >±30 kV |
| Common-Mode Range | -7 V to +12 V |
特点
- 20 Mbps full-duplex operation
- ±12 kV IEC 61000-4-2 ESD
- >±30 kV HBM ESD protection
- No external enable pins required
- 70 mV receiver hysteresis
- 256 nodes on bus (1/8 unit load)
- 5 V tolerant logic inputs
应用
- Industrial automation networks
- Building automation and HVAC
- Security and surveillance systems
- Encoder and decoder interfaces