Overview
The SN65HVD71DGKR from Texas Instruments is a robust, 3.3V differential bus transceiver designed for bidirectional communication on multipoint bus transmission lines. It is part of the industry-leading SN65HVD7x series, specifically engineered for RS-485 and RS-422 applications that require high-speed, balanced data transmission. This device combines a differential driver and a differential receiver, operating from a single 3.3-V power supply, and is fully enabled with no external enabling pins.
Key Specifications
| Parameter | Description | Value |
|---|---|---|
| Supply Voltage | Operating voltage range | 3V to 3.6V |
| Package Type | Package and pin count | VSSOP (DGK), 8 pins |
| Operating Temperature Range | Temperature range for operation | -40°C to 125°C |
| Data Rate | Maximum data rate | 400 kbps |
| ESD Protection | Electrostatic discharge protection | > ±30-kV HBM, > ±12-kV IEC61000-4-2 contact discharge, > ±4-kV IEC61000-4-4 fast transient burst |
| Quiescent Current | Current consumption during operation | < 1.1-mA |
| Standby Current | Current consumption in standby mode | 10 nA (typical), < 5 µA (maximum) |
| Receiver Hysteresis | Hysteresis for noise rejection | 70 mV |
| Logic Input Compatibility | Compatibility with controller voltages | 5-V tolerant logic inputs compatible with 3.3-V or 5-V controllers |
Key Features
- Full-duplex operation with separate input and output pins for bidirectional communication.
- Up to 256 nodes on the bus.
- Bus I/O protection and high levels of ESD protection.
- Large receiver hysteresis (70 mV) for noise rejection.
- Low power consumption with quiescent current < 1.1-mA and standby current < 5 µA.
- 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.
- Extended industrial temperature range: -40°C to 125°C.
Applications
The SN65HVD71DGKR is ideal for a range of applications, including:
- Industrial networks.
- Sophisticated control systems.
- Multipoint bus transmission lines.
- RS-485 and RS-422 communication systems.
Q & A
- What is the operating voltage range of the SN65HVD71DGKR?
The operating voltage range is 3V to 3.6V.
- What is the maximum data rate supported by the SN65HVD71DGKR?
The maximum data rate is 400 kbps.
- What level of ESD protection does the SN65HVD71DGKR offer?
The device offers > ±30-kV HBM, > ±12-kV IEC61000-4-2 contact discharge, and > ±4-kV IEC61000-4-4 fast transient burst protection.
- What is the quiescent current consumption of the SN65HVD71DGKR?
The quiescent current consumption is < 1.1-mA.
- Is the SN65HVD71DGKR compatible with 5-V logic inputs?
Yes, it is 5-V tolerant and compatible with 3.3-V or 5-V controllers.
- What is the operating temperature range of the SN65HVD71DGKR?
The operating temperature range is -40°C to 125°C.
- How many nodes can be supported on the bus with the SN65HVD71DGKR?
Up to 256 nodes can be supported on the bus.
- What is the receiver hysteresis of the SN65HVD71DGKR?
The receiver hysteresis is 70 mV.
- Does the SN65HVD71DGKR support hot-plugging applications?
Yes, it has glitch-free power-up and power-down protection for hot-plugging applications.
- In what package is the SN65HVD71DGKR available?
The device is available in an 8-pin VSSOP (DGK) package.
