The maximum operating temperature range for the RTL8139DL-LF is 0°C to 70°C (commercial grade) and -40°C to 85°C (industrial grade).
The RTL8139DL-LF can be configured for half-duplex or full-duplex operation through the DUPLEX_MODE pin. A high level on this pin enables full-duplex operation, while a low level enables half-duplex operation.
The maximum transmit packet size supported by the RTL8139DL-LF is 1518 bytes, which includes the 14-byte Ethernet header and the 4-byte CRC.
Flow control can be implemented using the PAUSE and BACKOFF pins. The PAUSE pin is used to send a pause frame to the link partner, while the BACKOFF pin is used to control the backoff timer.
The typical power consumption of the RTL8139DL-LF is 350mA at 3.3V, with a maximum power consumption of 450mA.