MC74VHC541DWR2

Overview

The MC74VHC541DWR2 is a non-inverting octal bus buffer and line driver manufactured by onsemi. It belongs to the VHCT logic family and features eight inputs and eight outputs housed in a 20-SOIC package. The device operates with a supply voltage range of 2 V to 5.5 V and supports 3-state outputs. It provides high-level output current of -8 mA and low-level output current of 8 mA. The component functions within an operating temperature range of -55°C to +125°C.

Feature Summary

• Octal configuration providing eight independent non-inverting channels for data buffering
• Compatible with both CMOS and TTL input logic levels across the specified voltage range
• Three-state output capability allows direct connection to bus structures without external drivers

Applications

• Bus-oriented memory and address drivers
• Clock drivers and buffer circuits
• TTL-to-CMOS level translation interfaces

Procurement Notes

Verify the specific suffix DWR2 against the manufacturer's official datasheet to confirm the SOIC-20 package and tape-and-reel orientation. Ensure the VHCT series designation matches the required voltage and speed specifications for the target application before finalizing procurement orders.

Selection Notes

Select this component when an octal buffer with wide supply voltage flexibility is required. The VHCT series ensures compatibility with standard TTL inputs while driving CMOS loads. Consider the 20-SOIC package dimensions and thermal characteristics relative to the PCB layout constraints and ambient operating conditions.

Part Context

This part is part of the MC74VHC541A series, which includes variants like MC74VHCT541ADWR2G. While sharing similar functionality, differences exist in input threshold voltages between VHC and VHCT sub-families. The DWR2 suffix specifically denotes the SOIC-20 surface-mount package configuration used in this variant.

Replacement Considerations

MC74VHCT541ADWR2G shares the same logical function and pinout but may differ in input threshold characteristics due to the VHCT series designation.