MC74VHC1GT125MU3TCG

Overview

The MC74VHC1GT125MU3TCG is a single non-inverting 3-state buffer from the VHC logic family, manufactured by onsemi. It operates within a supply voltage range of 2.0 V to 5.5 V and features TTL-level input thresholds. The device provides high noise immunity through buffered output structures and supports partial power down protection via IOFF functionality. It delivers source/sink currents of 8 mA at 3.0 V and includes overvoltage tolerant inputs and outputs up to 5.5 V regardless of the supply voltage.

Feature Summary

• TTL-level input thresholds for direct interfacing with 5 V circuits
• Partial power down protection capability using IOFF feature
• Overvoltage tolerant inputs and outputs up to 5.5 V
• High noise immunity with buffered 3-state output

Applications

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

Procurement Notes

Verify that the specific suffix MU3TCG corresponds to the UDFN6 package with dimensions 1.0 x 1.0 mm and 0.35 mm pitch as documented in the datasheet ordering information. Confirm the -Q suffix indicates AEC-Q100 qualification and PPAP capability if automotive compliance is required. Ensure the component matches the specified pinout and marking diagram for the selected package variant.

Selection Notes

Select this component when a single-channel non-inverting buffer with TTL-compatible inputs is required. The device is suitable for designs needing 3-state control and robust protection against supply/input voltage mismatches. Consider the UDFN6 package size constraints and verify thermal resistance requirements for the specific application environment.

Part Context

This part belongs to the MC74VHC1G125/MC74VHC1GT125 series of single non-inverting 3-state buffers. The GT variant specifically denotes TTL-level input thresholds, distinguishing it from the standard VHC CMOS-level input version. The device is designed for operation across a wide temperature range and offers multiple package options including SC-88A, SC-74A, SOT-953, and various UDFN6 configurations.

Replacement Considerations

MC74VHC1GT125DFT1G

FAQ

What is the difference between MC74VHC1G125 and MC74VHC1GT125?

The MC74VHC1G125 has CMOS-level input thresholds, while the MC74VHC1GT125 has TTL-level input thresholds.

Does the MC74VHC1GT125 support partial power down?

Yes, the device supports partial power down protection through its IOFF feature, which prevents excessive current flow when VCC = 0 V.