Fairchild (onsemi) Tariff Inquiry

74ACT843SPC

74ACT843SPC Description

The 74ACT843SPC is a high-performance bus driver IC from the 74ACT series, manufactured by Fairchild Semiconductor (now part of onsemi). This device is designed to provide robust and reliable signal transmission in various digital systems. It features a single independent circuit with a 9:9 configuration, suitable for driving multiple loads efficiently. The 74ACT843SPC operates within a supply voltage range of 4.5V to 5.5V, ensuring compatibility with standard TTL and CMOS logic levels.

This bus driver is housed in a through-hole package, making it ideal for applications requiring high reliability and ease of integration on printed circuit boards. The device is available in a tube package, which is beneficial for bulk handling and storage. The 74ACT843SPC is also ROHS3 compliant, adhering to stringent environmental standards and ensuring safe usage in modern electronic designs.

74ACT843SPC Features

• High Drive Capability: The 74ACT843SPC provides a high current output capability of 24mA for both high and low states, enabling it to drive multiple loads effectively.
• Fast Propagation Delay: With a propagation delay time of 5.5ns, this bus driver ensures rapid signal transmission, making it suitable for high-speed digital systems.
• Wide Operating Voltage Range: The device operates within a supply voltage range of 4.5V to 5.5V, providing flexibility and compatibility with various power supply configurations.
• Single Independent Circuit: The 9:9 configuration of the 74ACT843SPC allows for efficient signal routing and control, making it ideal for complex digital systems.
• Through-Hole Mounting: The through-hole mounting type ensures robust mechanical stability and ease of integration into PCB designs.
• ROHS3 Compliance: The 74ACT843SPC is ROHS3 compliant, ensuring environmental safety and regulatory compliance.
• Obsolete Status: While the 74ACT843SPC is marked as obsolete, it remains a reliable choice for legacy systems and applications where its unique features are still highly valued.

74ACT843SPC Applications

The 74ACT843SPC is well-suited for a variety of applications where high-speed signal transmission and robust drive capability are essential. Some specific use cases include:

• Data Bus Systems: Ideal for driving data buses in microprocessor and microcontroller systems, ensuring reliable and efficient signal transmission.
• Memory Systems: Suitable for driving address and data lines in memory modules, providing the necessary drive strength for stable operation.
• Peripheral Interfaces: Effective in interfacing with various peripherals, such as displays, sensors, and communication modules, where high-speed and high-current drive are required.
• Industrial Control Systems: The robustness and reliability of the 74ACT843SPC make it suitable for industrial control systems that require high-performance signal transmission.
• Telecommunications: In telecommunication equipment, the 74ACT843SPC can be used to drive control signals and data lines, ensuring fast and reliable communication.

Conclusion of 74ACT843SPC

The 74ACT843SPC is a versatile and high-performance bus driver IC that offers significant advantages over similar models. Its high current drive capability, fast propagation delay, and wide operating voltage range make it an ideal choice for a variety of digital systems. The through-hole mounting and ROHS3 compliance further enhance its suitability for modern electronic designs. Despite its obsolete status, the 74ACT843SPC remains a reliable and efficient solution for applications requiring robust signal transmission and control.