Overview
The SN65HVD73DR is a 3.3-V full-duplex RS-485 transceiver manufactured by Texas Instruments. This device is designed to operate in harsh environments, offering high levels of ESD protection and reliability over a wide temperature range. It combines a differential driver and a differential receiver, making it suitable for full-duplex bus communication designs. The SN65HVD73DR is available in a SOIC-14 package and supports data rates up to 20 Mbps.
Key Specifications
| Parameter | Value |
|---|---|
| Supply Voltage | 3.3 V |
| Data Rate | Up to 20 Mbps |
| Package Type | SOIC-14 |
| Body Size | 8.65 mm × 3.91 mm |
| Operating Temperature Range | –40°C to 125°C |
| ESD Protection | ±12-kV IEC61000-4-2 contact discharge, > ±30-kV HBM |
| Driver Enable | Active-high |
| Receiver Enable | Active-low |
| Standby Current | < 5 µA |
| Common-Mode Voltage Range | Suitable for multi-point applications over long cable runs |
Key Features
- Full-duplex operation with separate input and output pins for driver and receiver.
- High ESD protection: ±12-kV IEC61000-4-2 contact discharge and > ±30-kV HBM.
- Wide operating temperature range: –40°C to 125°C.
- Low standby current: less than 5 µA when both driver and receiver are disabled.
- Active-high driver enable and active-low receiver enable.
- Large receiver hysteresis for immunity to conducted differential noise.
- No external failsafe biasing resistors required.
Applications
The SN65HVD73DR is suitable for various applications requiring reliable RS-485 communication, including:
- Industrial automation and control systems.
- Building automation and control systems.
- Point-of-sale terminals and other commercial equipment.
- Medical devices requiring robust communication interfaces.
- Multi-point applications over long cable runs.
Q & A
- What is the operating voltage of the SN65HVD73DR?
The SN65HVD73DR operates at a supply voltage of 3.3 V. - What is the maximum data rate supported by the SN65HVD73DR?
The SN65HVD73DR supports data rates up to 20 Mbps. - What type of package is the SN65HVD73DR available in?
The SN65HVD73DR is available in a SOIC-14 package. - What is the operating temperature range of the SN65HVD73DR?
The SN65HVD73DR operates over a temperature range of –40°C to 125°C. - What level of ESD protection does the SN65HVD73DR offer?
The SN65HVD73DR offers ±12-kV IEC61000-4-2 contact discharge and > ±30-kV HBM ESD protection. - How do you enable and disable the driver and receiver on the SN65HVD73DR?
The driver is enabled with an active-high signal on the DE pin, and the receiver is enabled with an active-low signal on the RE pin. Both can be disabled to achieve a low standby current. - Does the SN65HVD73DR require external failsafe biasing resistors?
No, the SN65HVD73DR does not require external failsafe biasing resistors. - What is the standby current of the SN65HVD73DR when both driver and receiver are disabled?
The standby current is less than 5 µA when both the driver and receiver are disabled. - What are some common applications for the SN65HVD73DR?
The SN65HVD73DR is commonly used in industrial automation, building automation, point-of-sale terminals, medical devices, and multi-point applications over long cable runs. - What is the body size of the SOIC-14 package for the SN65HVD73DR?
The body size of the SOIC-14 package is 8.65 mm × 3.91 mm.
