MC74VHC541DTR2

Overview

The MC74VHC541DTR2 is an octal bus buffer and line driver from onsemi's VHC logic family. It features eight non-inverting buffers with three-state outputs in a 20-pin TSSOP package. The device operates within a supply voltage range of 2.0V to 5.5V, supporting CMOS and TTL input levels. Key electrical parameters include a maximum propagation delay of 12ns at CL=50pF, output drive currents of ±8mA, and low static power consumption. It functions across an industrial temperature range of -55°C to +125°C.

Feature Summary

• Provides eight non-inverting buffered channels for parallel data transmission
• Features three-state outputs to facilitate bus sharing and system flexibility
• Supports wide voltage operation from 2.0V to 5.5V for diverse logic compatibility
• Utilizes advanced high-speed CMOS technology for low power consumption

Applications

• Memory address buffering in computing systems
• Clock signal distribution networks
• Bus-oriented transmissions requiring level translation
• TTL to CMOS or CMOS to CMOS interface circuits

Procurement Notes

Verify the specific suffix DTR2 confirms the tape-and-reel packaging format required for automated assembly processes. Ensure the order specifies the correct voltage and temperature grade variants if operating conditions differ from standard industrial specifications. Cross-reference the manufacturer datasheet for moisture sensitivity classification and handling precautions during storage and soldering.

Selection Notes

Select this component when designing systems requiring high-density octal buffering with low voltage capability down to 2.0V. The VHC series offers superior speed compared to standard HC logic while maintaining low power dissipation. Consider the 20-TSSOP package constraints regarding PCB real estate and thermal management requirements for high-frequency applications.

Part Context

This part belongs to the MC74VHC541 series of octal bus buffers manufactured by onsemi. The VHC (Very High Speed CMOS) family is designed to provide performance comparable to AC/ACT logic families but with lower power consumption and wider voltage ranges. This specific variant integrates eight independent buffers into a single compact surface-mount package.

Replacement Considerations

Compatible substitutes include MC74VHC541DTG and MC74VHC541DWR2G. Verify pinout compatibility and ensure the alternative package type matches the existing footprint design constraints before implementation.