MC74AC541MEL

Overview

The MC74AC541MEL is an octal bus buffer manufactured by onsemi, belonging to the AC logic family. It features eight non-inverting channels with three-state outputs housed in a TSSOP-20 package. The device operates within a supply voltage range of 2V to 6V and supports a maximum propagation delay of 8ns at 3.3V or 6ns at 5V. It provides high drive capability with output currents of ±24mA and low static power consumption.

Feature Summary

• Octal configuration with three-state outputs for efficient bus management
• Non-inverting signal transmission with dual output enable controls
• Through-pin architecture facilitating microprocessor interface and PCB layout
• CMOS technology ensuring low power consumption and high noise immunity

Applications

• Memory address and data bus driving
• Clock signal distribution and buffering
• Microprocessor I/O port expansion
• Bidirectional bus transceivers

Procurement Notes

Verify the specific suffix MEL against official datasheets to confirm the TSSOP-20 package type and tape-and-reel orientation. Ensure compatibility with existing board footprints and reflow soldering profiles. Confirm RoHS compliance status through manufacturer declarations prior to integration into regulated assemblies.

Selection Notes

Select this component when an octal non-inverting buffer with three-state control is required for system buses. It is suitable for designs needing high drive strength and low power dissipation. Compare with the MC74AC540 if inverting functionality is needed instead. Consider package availability and lead times for production planning.

Part Context

This part belongs to the MC74AC540/541 series of octal buffers and line drivers. These devices are designed for memory and address driving, clock driving, and bidirectional bus transceivers. The AC series offers faster switching speeds compared to standard HC logic while maintaining CMOS power efficiency.