The ST1480ABN is a robust, low power transceiver for RS-485 and RS-422 communication from STMicroelectronics. This device is designed to provide bidirectional data communications on multipoint bus transmission lines. It is suitable for long transmission lines due to its high impedance, allowing up to 32 devices to share the bus. This transceiver is an ideal choice for industrial, commercial, and telecommunications systems requiring high-speed, bidirectional information transfer.

Key Features

• Interface: RS-485 and RS-422
• Supply Voltage: 3.3V to 5.5V
• Driver Output Capability: Up to 1.5 Mbps data rate
• Receiver Input Sensitivity: ±200 mV
• Thermal Shutdown Protection: Prevents IC damage during fault conditions
• Low Quiescent Current: Ideal for power-sensitive applications
• Extended Common-Mode Range: -7V to +12V for robust data communication
• Failsafe Receiver: Guarantees a known output in the absence of input signal

Applications

• Industrial Control Systems
• Building Automation
• Networked Security Systems
• Point of Sale Equipment
• Data Communication Systems

The ST1480ABN is engineered to operate in harsh environments. It features a wide common-mode voltage range and a failsafe receiver that ensures a logic-high output when the input is open, shorted, or idle, making it highly reliable in the field. The low power consumption and shutdown current features make it suitable for battery-powered and energy-efficient applications.

With its integrated protection against thermal overload, the device automatically enters a low-power shutdown mode if the junction temperature exceeds the preset limit, thus ensuring the longevity of your system. The high data rate capability makes the ST1480ABN perfect for high-speed data communication without compromising signal integrity, even in electrically noisy environments.

The ST1480ABN transceiver is available in a versatile 8-pin package and is fully specified over the industrial temperature range. Its robust design and advanced features make it an excellent choice for any application requiring reliable RS-485 or RS-422 communication.