The maximum cable length supported by the SN65HVD21ADR is dependent on the baud rate and the type of cable used. As a general rule, the maximum cable length is around 100 meters at 9600 bps, but it can be up to 1000 meters at lower baud rates. However, it's recommended to consult the application notes and perform testing to determine the maximum cable length for a specific use case.
Yes, the SN65HVD21ADR can be used in a multi-point configuration, but it requires additional circuitry and careful design consideration. The device can be connected to multiple nodes, but each node must have its own termination resistor and the total bus capacitance must be within the recommended limits.
To ensure EMC with the SN65HVD21ADR, it's recommended to follow proper PCB layout and design guidelines, such as keeping the transmitter and receiver lines as short as possible, using a common-mode choke, and providing adequate shielding and grounding. Additionally, the device should be placed in a shielded enclosure and the cables should be properly terminated.
The maximum operating temperature range for the SN65HVD21ADR is -40°C to 125°C. However, the device's performance and reliability may be affected at extreme temperatures, so it's recommended to consult the datasheet and application notes for specific temperature-related considerations.
Yes, the SN65HVD21ADR can be used in a redundant or fault-tolerant system, but it requires additional circuitry and design consideration. The device can be connected to multiple transceivers or nodes, and the system can be designed to automatically switch to a backup node in case of a failure.
SN65HVD21ADR datasheet
by Texas Instruments
