ST4E1216, ST4E1240 Datasheet High-speed 3.3 V / 5 .
ST4E1240 - High-speed 3.3V / 5V RS485 transceiver
ST4E1216, ST4E1240 Datasheet High-speed 3.3 V / 5 V RS485 transceiver with ±12 kV IEC 61000-4-2 contact ESD protection Features Maturity status link.