MC74VHC1GT50DFT2G

Overview

The MC74VHC1GT50DFT2G is a single-channel, non-inverting buffer from the VHC logic family. It operates within a supply voltage range of 2.0 V to 5.5 V and features TTL-level input thresholds. The device provides push-pull outputs capable of sourcing and sinking 8 mA at 3.0 V. Propagation delay is typically 3.5 ns at 5 V with a 15 pF load. It includes over-voltage tolerant inputs and outputs up to 5.5 V, supporting partial power-down protection via IOFF.

Feature Summary

• Features TTL level input thresholds for direct interfacing with 5 V circuits while operating at lower voltages.
• Provides over-voltage tolerance on both inputs and outputs up to 5.5 V regardless of the supply voltage.
• Supports partial power-down protection through the IOFF feature to prevent excessive current draw during power-off states.

Applications

• Interfacing 5 V logic circuits to 3 V logic systems
• Memory data bus buffering
• Clock signal distribution

Procurement Notes

Verify the specific ordering suffix 'DFT2G' corresponds to the SC-88A package and tape-and-reel shipping configuration. Confirm that the 'T50' designation matches the requirement for TTL input thresholds rather than CMOS levels. Ensure compliance with RoHS standards and check for any automotive-specific '-Q' suffix requirements if applicable to the target environment.

Selection Notes

Select this component when TTL-compatible input thresholds are required for a single-channel buffer application. It is suitable for designs needing high-speed performance with low quiescent current in compact surface-mount packages. Consider the MC74VHC1G50 variant if CMOS-level input thresholds are preferred instead of TTL levels.

Part Context

This part belongs to the MC74VHC1G50/MC74VHC1GT50 advanced high-speed CMOS buffer series. It is designed for tiny footprint packages including SC-88A, SC-74A, SOT-553, SOT-953, and UDFN6. The device utilizes less than 100 FETs for chip complexity and is available in Pb-free, halogen-free, and BFR-free configurations.

Replacement Considerations

MC74VHC1G50DFT2G (CMOS threshold version)

FAQ

What is the difference between MC74VHC1G50 and MC74VHC1GT50?

The MC74VHC1G50 has CMOS level input thresholds, whereas the MC74VHC1GT50 has TTL level input thresholds.

Does the MC74VHC1GT50 support partial power-down?

Yes, the device supports partial power-down protection through its IOFF feature.