The maximum cable length supported by the SN65C3221EDB depends 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 and 10 meters at 115200 bps. However, it's recommended to consult the RS-232 specification and perform tests to determine the maximum cable length for a specific application.
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 send data. The specific implementation of flow control depends on the application and the devices involved.
The power consumption of the SN65C3221EDB depends on the operating mode and the supply voltage. According to the datasheet, the typical power consumption is around 5mA at 3.3V supply voltage and 10mA at 5V supply voltage. However, it's recommended to consult the datasheet and perform tests to determine the actual power consumption for a specific application.
To ensure EMC with the SN65C3221EDB, it's recommended to follow proper PCB design practices, such as using a ground plane, keeping signal traces short, 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 maximum operating temperature range of the SN65C3221EDB is -40°C to 85°C. However, it's recommended to consult the datasheet and perform tests to determine the actual operating temperature range for a specific application.
SN65C3221EDB datasheet
by Texas Instruments
