Description
The ST1480Ax is ±15 kV ESD protected, 3.3 V low power transceiver for RS-485 and RS-422 communications. The device contains one driver and one receiver in half duplex configuration.
   
Features
• ESD protection
    – ±15 kV human body model
    – ±8 kV IEC 1000-4-2 contact discharge
• Operates from a single 3.3 V supply - no
    charge pump required
• Interoperable with 5 V logic
• 1 µA low current shutdown mode max
• Guaranteed 12 Mbps data rate
• -7 to 12 common mode input voltage range
• Half duplex versions available
• Industry standard 75176 pinout
• Current limiting and thermal shutdown for
    driver overload protection
• Guaranteed high receiver output state for
    floating, shorted or terminated inputs with no
    signal present
• Allows up to 64 transceivers on the bus