Overview
The SN65HVD1477DR is a 3.3V full-duplex RS-485 transceiver produced 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 single 3.3-V power supply and is available in both SOIC and MSOP packages. The SN65HVD1477DR is fully enabled with no external enabling pins, making it suitable for a variety of industrial and communication applications.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Supply Voltage (VCC) | 3 to 3.6 | V |
| Operating Temperature Range | –40 to 125 | °C |
| Signaling Rate | Up to 50 Mbps | |
| ESD Protection | ±16 kV IEC61000-4-2 Contact Discharge, > ±30 kV HBM | |
| Quiescent Current During Operation | < 1.1 mA | |
| Standby Supply Current | 10 nA Typical, < 5 µA (maximum) | |
| Package Type | SOIC (D) 8-pin | |
| Receiver Hysteresis | 70 mV | |
| Logic Input Compatibility | 5-V Tolerant, Compatible With 3.3-V or 5-V Controllers |
Key Features
- High ESD protection: ±16 kV IEC61000-4-2 contact discharge and > ±30 kV HBM ESD protection
- Robust 3.3-V drivers and receivers
- Full-duplex communication with separate input and output pins
- Wide common-mode voltage range suitable for multi-point applications over long cable runs
- Large receiver hysteresis (70 mV) for noise rejection
- Low power consumption: < 1.1 mA quiescent current during operation and 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
- No external enabling pins required for SN65HVD1477DR
Applications
- Industrial Automation
- Encoders and Decoders
- Building Automation
- Security and Surveillance Networks
- Telecommunications
Q & A
- What is the operating temperature range of the SN65HVD1477DR?
The operating temperature range is from –40°C to 125°C.
- What is the signaling rate of the SN65HVD1477DR?
The signaling rate is up to 50 Mbps.
- What level of ESD protection does the SN65HVD1477DR offer?
The device offers ±16 kV IEC61000-4-2 contact discharge and > ±30 kV HBM ESD protection.
- What is the quiescent current during operation for the SN65HVD1477DR?
The quiescent current during operation is less than 1.1 mA.
- Does the SN65HVD1477DR require external enabling pins?
No, the SN65HVD1477DR is fully enabled with no external enabling pins required.
- What is the receiver hysteresis of the SN65HVD1477DR?
The receiver hysteresis is 70 mV.
- Is the SN65HVD1477DR compatible with 5-V logic inputs?
Yes, the device is 5-V tolerant and compatible with 3.3-V or 5-V controllers.
- What are some common applications for the SN65HVD1477DR?
Common applications include industrial automation, encoders and decoders, building automation, security and surveillance networks, and telecommunications.
- What package types are available for the SN65HVD1477DR?
The device is available in SOIC (D) 8-pin and MSOP packages.
- How does the SN65HVD1477DR handle power-up and power-down?
The device features glitch-free power-up and power-down protection for hot-plugging applications.
