Overview
The SN65HVD1474DR, produced by Texas Instruments, is a 3.3-V full-duplex RS-485 transceiver that offers high reliability and robust performance in various industrial and communication applications. This device is part of the SN65HVD147x family, known for its exceptional ESD protection and wide operating temperature range. It features a single 3.3-V power supply and supports full-duplex bus communication, making it suitable for multi-point applications over long cable runs.
Key Specifications
| Parameter | Min | Max | Unit | |
|---|---|---|---|---|
| Supply Voltage (VCC) | 3 | 3.3 | 3.6 | V |
| Operating Temperature (TA) | -40 | 125 | °C | |
| Signaling Rate | 20 Mbps | |||
| Driver Differential Output Voltage Magnitude | 1.5 | 2 | V | |
| Receiver Low-Level Output Voltage | 0.2 | 0.4 | V | |
| Quiescent Supply Current | 750 | 1100 | µA | |
| Standby Supply Current | 0.1 | 5 | µA |
Key Features
- High ESD protection: ±16-kV IEC61000-4-2 contact discharge and > ±30-kV HBM ESD protection.
- 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 and low standby supply current of 10 nA typical.
- 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.
- Support for up to 256 nodes on the bus.
- Wide common-mode voltage range suitable for multi-point applications over long cable runs.
Applications
- Industrial Automation
- Encoders and Decoders
- Building Automation
- Security and Surveillance Networks
- Telecommunications
Q & A
- What is the operating temperature range of the SN65HVD1474DR?
The operating temperature range is from –40°C to 125°C.
- What is the signaling rate of the SN65HVD1474DR?
The signaling rate is up to 20 Mbps.
- What kind of ESD protection does the SN65HVD1474DR offer?
The device offers ±16-kV IEC61000-4-2 contact discharge and > ±30-kV HBM ESD protection.
- How many nodes can be supported on the bus with the SN65HVD1474DR?
Up to 256 nodes can be supported on the bus.
- What is the quiescent supply current of the SN65HVD1474DR during operation?
The quiescent supply current is less than 1.1 mA.
- Is the SN65HVD1474DR compatible with 5-V logic inputs?
- What is the standby supply current of the SN65HVD1474DR?
The standby supply current is typically 10 nA and less than 5 µA maximum.
- Does the SN65HVD1474DR support glitch-free power-up and power-down protection?
- What are the package options available for the SN65HVD1474DR?
The device is available in SOIC-8 and MSOP-8 packages.
- What are some common applications of the SN65HVD1474DR?
