MC74LVX541MG

Overview

The MC74LVX541MG is an advanced high-speed CMOS octal bus buffer fabricated with silicon gate technology. It operates within a 2 V to 3.6 V supply range and features noninverting outputs with three-state control via OE1 and OE2 inputs. The device provides balanced propagation delays, typically 5.0 ns at 3.3 V, and maintains low power dissipation with a maximum quiescent current of 4 µA. Inputs tolerate voltages up to 6.5 V, enabling interface between 5.0 V and 3.0 V systems.

Feature Summary

• Noninverting octal bus buffer with three-state output capability controlled by dual enable inputs
• High noise immunity with internal circuit stages providing stable output performance
• Input voltage tolerance up to 6.5 V allows direct interfacing between 5.0 V and 3.0 V logic systems
• Power-down protection provided on inputs to prevent excessive current draw during low-power states

Applications

• Memory address and data bus driving in embedded systems
• Clock distribution buffers for synchronous digital circuits
• Interface bridging between 5.0 V microprocessors and 3.3 V peripheral devices
• General-purpose bidirectional bus transceivers requiring tri-state isolation

Procurement Notes

Verify the package suffix 'MG' corresponds to the SOIC-20 or TSSOP-20 configuration as specified in the ordering information section of the datasheet. Confirm RoHS compliance and lead-free status through manufacturer documentation. Ensure input pins are tied to valid logic levels when unused to maintain functionality and reliability.

Selection Notes

Select this component for applications requiring high-speed signal buffering with low power consumption. The wide input voltage tolerance makes it suitable for mixed-voltage environments. Consider the operating temperature range of -40°C to +85°C for industrial applications. Verify that the required drive current and load capacitance fall within the recommended operating conditions specified in the electrical characteristics table.

Part Context

This device belongs to the MC74LVX series of advanced low-voltage CMOS logic components. It functions as an octal buffer, providing eight independent noninverting channels. The LVX series is designed to offer performance comparable to Bipolar Schottky TTL while maintaining the low power advantages of CMOS technology. It is part of a broader family including inverters and other buffer configurations.

Replacement Considerations

MC74LVX541DWG (SOIC-20 package)

FAQ

What is the maximum input voltage the MC74LVX541 can tolerate?

The inputs can tolerate DC voltages up to 6.5 V, allowing safe interfacing with 5.0 V systems even when the device is powered by a lower voltage such as 3.3 V.

How does the device handle power-down conditions?

The MC74LVX541 includes power-down protection on its inputs. This feature prevents excessive current from flowing into the device when the supply voltage is off or below the threshold, ensuring safe operation during low-power states.

What determines the output state when both OE1 and OE2 are active?

When either OE1 or OE2 is high, the outputs enter a high-impedance state regardless of the input data. When both enables are low, the outputs follow the noninverted input signals.