Overview
The SN65HVD1471DR is a 3.3-V full-duplex RS-485 transceiver manufactured by Texas Instruments. This device is part of the SN65HVD147x family, known for its high ESD protection and robust performance in harsh operating environments. It features a differential driver and a differential receiver, both operating from a single 3.3-V power supply, making it suitable for full-duplex bus communication designs. The transceiver is available in an 8-pin SOIC package and is characterized over an extended industrial temperature range of –40°C to 125°C.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Supply Voltage | 3.3 | V |
| Operating Temperature Range | –40 to 125 | °C |
| Signaling Rate (Max) | 400 kbps | |
| Common Mode Range | –7 to 12 | V |
| HBM ESD Protection | ±30 kV | |
| IEC 61000-4-2 Contact Discharge | ±16 kV | |
| IEC 61000-4-4 Fast Transient Burst | ±4 kV | |
| Quiescent Current During Operation | < 1.1 mA | |
| Standby Supply Current | 10 nA (typical), < 5 µA (maximum) | |
| Number of Nodes on the Bus | Up to 256 | |
| Package Type | SOIC (8-pin) |
Key Features
- 1/8 Unit-Load Options Available
- Up to 256 Nodes on the Bus
- Bus I/O Protection
- High ESD Protection: ±30 kV HBM, ±16 kV IEC61000-4-2 Contact Discharge, ±4 kV IEC61000-4-4 Fast Transient Burst
- Extended Industrial Temperature Range: –40°C to 125°C
- Large Receiver Hysteresis (70 mV) for Noise Rejection
- Low Power Consumption: < 1.1 mA Quiescent Current During Operation
- Low Standby Supply Current: 10 nA Typical, < 5 µA (maximum)
- Glitch-Free Power-Up and Power-Down Protection for Hot-Plugging Applications
- 5-V Tolerant Logic Inputs Compatible With 3.3-V or 5-V Controllers
- Signaling Rate Options Optimized for 400 kbps (1470, 1471), 20 Mbps (1473, 1474), 50 Mbps (1476, 1477)
Applications
- Industrial Automation
- Encoders and Decoders
- Building Automation
- Security and Surveillance Networks
- Telecommunications
Q & A
- What is the operating temperature range of the SN65HVD1471DR?
The operating temperature range is –40°C to 125°C.
- What is the maximum signaling rate of the SN65HVD1471DR?
The maximum signaling rate is 400 kbps.
- What type of ESD protection does the SN65HVD1471DR offer?
The device offers ±30 kV HBM ESD protection, ±16 kV IEC61000-4-2 Contact Discharge, and ±4 kV IEC61000-4-4 Fast Transient Burst.
- How many nodes can be supported on the bus with the SN65HVD1471DR?
Up to 256 nodes can be supported on the bus.
- What is the quiescent current during operation for the SN65HVD1471DR?
The quiescent current during operation is less than 1.1 mA.
- Is the SN65HVD1471DR compatible with 5-V logic inputs?
Yes, the device is 5-V tolerant and compatible with 3.3-V or 5-V controllers.
- What is the standby supply current of the SN65HVD1471DR?
The standby supply current is 10 nA (typical) and less than 5 µA (maximum).
- Does the SN65HVD1471DR have glitch-free power-up and power-down protection?
Yes, it has glitch-free power-up and power-down protection for hot-plugging applications.
- In what package types is the SN65HVD1471DR available?
The device is available in an 8-pin SOIC package.
- Is the SN65HVD1471DR RoHS compliant?
Yes, the device is RoHS compliant.
