ON Semiconductor MC1489D: A Robust Line Receiver for Digital Communication Systems

The MC1489D from ON Semiconductor is a monolithic quadruple line receiver designed to interface data terminal equipment with data communications equipment. This versatile integrated circuit is specifically created to meet the stringent requirements of EIA-232-E and V.28 standards, making it an ideal choice for serial data communication in a wide range of applications.

Key Features:

• Compatibility: Fully compliant with EIA-232-E and V.28 specifications, ensuring seamless integration with standardized communication systems.
• Quad Receivers: Contains four independent receiver circuits, providing the ability to handle multiple data streams simultaneously.
• High Input Impedance: Features a typical input impedance of 7 kΩ, allowing for multiple receivers to be connected in parallel without overloading the data source.
• Input Hysteresis: Built-in hysteresis of typically 1000 mV provides noise immunity, ensuring reliable data reception even in electrically noisy environments.
• Wide Voltage Range: Capable of operating over a wide range of supply voltages from ±4.5V to ±15V, offering flexibility in various system designs.
• Power-Off Source Impedance: Exhibits a high degree of source impedance when powered off, minimizing the effect on the rest of the system.

Applications:

The MC1489D is suited for a variety of applications that require robust and reliable data reception. These include:

• Telecommunications interfaces
• Serial data transmission and reception
• Modem interfaces
• Industrial control systems
• Professional communication equipment

Technical Specifications:

The device is encapsulated in a 14-pin SOIC package, making it compact and suitable for surface mount technology (SMT). It is characterized for operation from 0°C to 70°C, ensuring reliable performance across a standard temperature range.

In summary, the MC1489D from ON Semiconductor is a reliable, flexible, and high-performing line receiver that meets the industry standards for serial communication. Its multiple receivers, high input impedance, and noise immunity make it a strong candidate for any design requiring robust data reception capabilities.