The maximum cable length supported by the SN65C3222EDW is dependent on the baud rate and the type of cable used. As a general guideline, the maximum cable length for RS-232 is around 50 feet (15.24 meters) at 9600 baud, but it can be extended up to 100 feet (30.48 meters) at lower baud rates.
The flow control pins (RTS and CTS) are used to control the flow of data between the transmitter and receiver. In a typical application, the RTS pin is used by the receiver to signal the transmitter to stop sending data when the receiver's buffer is full, and the CTS pin is used by the transmitter to signal the receiver that it is ready to receive data. The specific implementation of flow control depends on the application and the requirements of the system.
The SN65C3222EDW has a power-up and power-down behavior that is designed to prevent data corruption and ensure reliable operation. When power is applied, the device enters a reset state and the outputs are in a high-impedance state. When power is removed, the device enters a shutdown state and the outputs are driven low. The specific power-up and power-down behavior can be found in the datasheet.
To ensure EMC with the SN65C3222EDW, it is recommended to follow proper PCB design and layout practices, such as using a ground plane, minimizing trace lengths, and using shielding and filtering components. Additionally, the device should be placed in a metal enclosure and connected to a grounded chassis to reduce electromagnetic radiation.
The operating temperature range of the SN65C3222EDW is -40°C to 85°C. However, the device can be operated at temperatures outside this range with reduced performance and reliability.
SN65C3222EDW datasheet
by Texas Instruments
