Product Overview
The SN65HVD10DR from Texas Instruments is an RS-485/RS-422 transceiver designed for half-duplex communication over balanced transmission lines. With a 1/8 unit load, it supports up to 256 nodes on a single bus. The device operates from a single 3.3V supply, supports data rates up to 10Mbps, and provides robust ESD protection. It is housed in an 8-pin SOIC package.
Key Specifications
| Category | RS-485/RS-422 Transceiver |
| Operating Mode | Half-Duplex |
| Supply Voltage | 3.3V |
| Data Rate | Up to 10 Mbps |
| Unit Load | 1/8 (256 nodes per bus) |
| Common-Mode Range | -7V ~ 12V |
| ESD Protection | ±16kV HBM on bus pins |
| Operating Temperature | -40°C ~ 85°C |
| Package | 8-SOIC |
| Part Status | Active |
Features
- 3.3V single supply operation
- 1/8 unit load allows up to 256 nodes on the bus
- Data rates up to 10Mbps for high-speed applications
- Extended common-mode range: -7V to 12V
- ±16kV HBM ESD protection on bus pins
- Driver and receiver enable pins for flexible control
- Thermal shutdown and current limiting protection
- Fail-safe receiver for open-circuit conditions
Applications
- Industrial automation and process control
- Building automation and HVAC systems
- Motor drive and inverter communication
- Utility metering and smart grid
- Security and access control systems