MC74VHC1GT50XV5T2G

Overview

The MC74VHC1GT50XV5T2G is a single-channel, non-inverting buffer from the onsemi VHC logic family, housed in an SOT-553 package. It operates within a supply voltage range of 2.0 V to 5.5 V and features TTL-compatible input thresholds. The device provides over-voltage tolerant inputs and outputs up to 5.5 V, enabling safe interfacing between 5 V and 3 V circuits. It supports partial power-down protection via IOFF and delivers source/sink currents of 8 mA at 3.0 V. Propagation delay is typically 3.5 ns at 5 V with a 15 pF load.

Feature Summary

• Features TTL level input thresholds for direct compatibility with standard digital logic families.
• Provides input and output structures tolerant to voltages up to 5.5 V regardless of supply voltage.
• Supports partial power-down protection through IOFF functionality when VCC is zero.
• Designed for high-speed operation with low propagation delay in compact surface-mount packages.

Applications

• Interfacing 5 V circuits to 3 V circuits
• Portable applications requiring low power consumption
• Battery-powered systems

Procurement Notes

Verify the specific ordering suffix XV5 corresponds to the SOT-553 package configuration required for your design. Confirm that the TTL threshold variant (GT) matches your input signal levels, as the HC variant offers CMOS thresholds. Ensure compliance with RoHS and Pb-Free requirements if mandated by your assembly process specifications.

Selection Notes

Select this component when TTL-level input recognition is necessary within a VHC speed class. The SOT-553 package is suitable for space-constrained designs. Consider the MC74VHC1G50 series if CMOS-level input thresholds are preferred instead of TTL compatibility. Evaluate thermal dissipation capabilities based on the specific PCB layout and ambient operating conditions.

Part Context

This part belongs to the MC74VHC1G50/MC74VHC1GT50 advanced high-speed CMOS buffer family. It shares functional similarities with other single-gate buffers but is distinguished by its specific logic threshold characteristics and available packaging options including SC-88A, SC-74A, and UDFN6.

Replacement Considerations

MC74VHC1GT50DFT2G serves as a functional equivalent in the SC-88A package. Verify pinout compatibility and package dimensions before substitution. The MC74VHC1G50 series is compatible if CMOS input thresholds are acceptable.