MC74VHCT244ADTRG

Overview

The MC74VHCT244ADTRG is an octal bus buffer and line driver from the VHCT logic family, manufactured by onsemi. It features eight inputs and eight outputs with three-state capability, housed in a TSSOP-20 surface-mount package. The device operates within a supply voltage range of 4.5 V to 5.5 V and supports a maximum static current of 4 uA. It exhibits a propagation delay of 8.4 ns and can dissipate up to 833 mW of power. The component is rated for operation between -55°C and +125°C.

Feature Summary

• Provides octal buffering with three-state output control for efficient data bus management
• Compatible with standard CMOS logic levels through the VHCT series architecture
• Designed for high-speed signal transmission with low propagation delay characteristics

Applications

• High-speed data bus buffering in computing systems
• Line driving for memory interface circuits
• Clock distribution networks requiring multiple driven outputs

Procurement Notes

Verify the specific suffix 'TRG' against the manufacturer's official datasheet to confirm tape-and-reel packaging specifications. Ensure the ordering part number matches the exact pinout and electrical parameters required for your design. Cross-reference the RoHS compliance status directly with the latest product documentation before finalizing procurement decisions.

Selection Notes

Select this component when an octal buffer with three-state outputs is required for 5V logic applications. The VHCT series ensures compatibility with standard CMOS inputs while offering improved speed over older HC/HCT families. Consider the TSSOP-20 package constraints and thermal dissipation limits of 833 mW during PCB layout planning.

Part Context

This part belongs to the MC74VHCT244A series of octal buffers. It serves as a critical interface component for managing data flow between microprocessors and peripheral devices. The VHCT technology combines the ease of use of HCT logic with the performance benefits of advanced CMOS processes, making it suitable for dense digital designs.

Replacement Considerations

Check for direct substitutes such as MC74VHCT244ADWRG or other variants within the same VHCT family that share identical pinouts and electrical characteristics. Verify package compatibility and ensure any alternative meets the same voltage and temperature operating ranges.