MC74LVX541MEL

Overview

The MC74LVX541MEL is an advanced high-speed CMOS octal bus buffer fabricated with silicon gate technology. It operates within a voltage range of 2.0 V to 3.6 V and features noninverting outputs. The device provides balanced propagation delays, typically 5.0 ns at 3.3 V, and low quiescent current (ICC) of 4 µA maximum at 25°C. Inputs tolerate voltages up to 6.5 V, enabling interface between 5.0 V and 3.0 V systems. It includes power-down protection on inputs and offers high noise immunity with dynamic input thresholds.

Feature Summary

• Octal bus buffer architecture with two independent output enables for flexible data flow control
• High noise immunity and stable output provided by internal three-stage circuit design
• Power-down protection on inputs prevents unwanted current draw during system power-off states
• Pin and function compatibility with standard logic families facilitates direct replacement in existing designs

Applications

• Interface bridging between 5.0 V and 3.0 V digital systems
• Carry-over memory applications requiring high-impedance state isolation
• Clock drivers and buffered clock distribution networks
• Multiplexer and demultiplexer configurations for data routing

Procurement Notes

Verify the specific ordering suffix against the manufacturer's official documentation to confirm package type and shipping configuration. The datasheet lists SOIC-20 and TSSOP-20 options; ensure the physical footprint matches the target PCB layout. Confirm RoHS compliance status and lead-free marking requirements for assembly processes. Cross-reference the full part number with the latest revision history to ensure functional equivalence.

Selection Notes

Select this component when designing circuits requiring octal buffering with low power consumption and high-speed operation. The wide input voltage tolerance makes it suitable for mixed-voltage environments. Ensure the operating temperature range of -40°C to +85°C aligns with the application environment. Consider the 3-state output capability for bus sharing applications where multiple devices connect to a common data line.

Part Context

This device belongs to the LVX series of advanced high-speed CMOS logic products from onsemi. It is functionally compatible with other standard logic families while offering improved performance characteristics such as lower power dissipation and higher noise margins compared to older bipolar technologies. The octal configuration allows for efficient handling of parallel data buses in complex digital systems.

Replacement Considerations

Direct pin-compatible substitutes include MC74LVX541DTR2G and MC74LVX541DWG. Verify that alternative packages maintain identical electrical specifications and thermal performance. Check for any updates in the datasheet revision history that might affect timing parameters or recommended operating conditions.