MC74HC541ADWG

Overview

The MC74HC541ADWG is an octal 3-state non-inverting buffer, line driver, and line receiver manufactured by onsemi. It belongs to the HC logic series and operates within a supply voltage range of 2.0 V to 6.0 V. The device features eight inputs and outputs positioned on opposite sides of the package, facilitating efficient PCB layout for bus-oriented systems. It includes two ANDed active-low output enables for precise control. Key electrical characteristics include a maximum propagation delay of 80 ns at 2 V and low input current of 1 µA. The component supports surface-mount installation in a 20-pin SOIC-WB-20 package.

Feature Summary

• Octal 3-state non-inverting buffer design with inputs and outputs on opposite package sides
• Two ANDed active-low output enables for flexible bus control
• Direct interface capability with CMOS, NMOS, and TTL loads
• High noise immunity characteristic of CMOS devices

Applications

• Memory address drivers
• Clock drivers
• Bus-oriented systems

Procurement Notes

Verify the specific suffix 'DWG' corresponds to the SOIC-WB-20 package and RoHS compliance status required for your assembly process. Confirm that the operating temperature range of -55°C to +125°C meets your environmental specifications. Ensure ESD handling procedures are followed during procurement and storage due to moisture sensitivity classification.

Selection Notes

Select this component when an octal non-inverting buffer with 3-state output is required for high-speed digital interfaces. It is suitable for applications needing direct interfacing between different logic families such as CMOS and TTL. Consider the wide supply voltage range and robust noise immunity for reliable operation in industrial environments.

Part Context

This part is part of the 74HC541 family of octal buffers. It shares pinout compatibility with LS541 devices but offers improved performance characteristics typical of High-Speed CMOS technology. The device is designed to replace older logic families in modern bus architectures while maintaining backward compatibility with standard logic levels.

Replacement Considerations

MC74VHCT541ADWG: Offers faster propagation delay (9 ns) and TTL-compatible input thresholds but requires a 4.5 V to 5.5 V supply. MC74AC541DWG: Provides higher drive current (24 mA) and lower delay (6 ns at 5 V) but has different power consumption characteristics.