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ST1480AC：3.3V POWERED, 15KV ESD PROTECTED TRANSMIT AT UP TO 12MBPS TRUE RS-485/RS422 TRANSCEIVER, [0oC, 70oC] TEMPERATURE RANGE

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.

The ST1480Ax transmits and receives at a guaranteed data rate of at least 12 Mbps.

All transmitter outputs and receiver inputs are protected to ±15 kV using Human Body Model.

Driver is short-circuit current limited and is protected against excessive power dissipation by

thermal shutdown circuitry that places the driver outputs into a high-impedance state.

The ST1480Ax input has a true fail-safe feature that guarantees a logic high output if both inputs are open circuit, shorted together or in the presence of a termination with no signal on the bus.

Key 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

Product Specifications

Application Notes

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