MC74VHC540DTR2G

Overview

The MC74VHC540DTR2G is an octal buffer and line driver manufactured by onsemi, belonging to the 74VHC logic series. It features a single element with eight bits per element and provides three-state outputs. The device operates within a supply voltage range of 2V to 5.5V and supports output currents of 8mA for both high and low states. It is housed in a 20-TSSOP surface-mount package with a width of 4.40mm. The component is rated for an operating temperature range from -55°C to 125°C.

Feature Summary

• Provides inverting buffering functionality with three-state output capability for bus-oriented architectures.
• Utilizes advanced VHC technology to achieve high-speed performance while maintaining low power consumption.
• Supports wide supply voltage operation compatible with standard CMOS logic families.

Applications

• Bus-oriented memory and address drivers
• Clock drivers and buffer circuits
• High-speed data transmission lines

Procurement Notes

Verify the specific ordering suffix 'G' against official manufacturer documentation to confirm RoHS compliance status, as historical records indicate potential variations in environmental compliance for this part number family. Confirm current manufacturing status, as previous iterations of this model have been marked obsolete. Ensure the datasheet version matches the required electrical specifications for your design.

Selection Notes

Select this component when designing systems requiring octal buffering with three-state control and wide voltage compatibility. It serves as a suitable replacement for legacy 74FCT or 74ACT devices where lower voltage operation is needed. Consider the 20-TSSOP package constraints and thermal dissipation requirements for high-temperature environments up to 125°C.

Part Context

This integrated circuit belongs to the 74VHC series of high-speed CMOS logic devices produced by onsemi. The series is characterized by silicon-gate technology that offers fast propagation speeds and low static power dissipation. The MC74VHC540 specifically addresses applications requiring multiple buffered outputs with tri-state control capabilities.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided source material.