MC74VHC1GT125MU1TCG

Overview

The MC74VHC1GT125MU1TCG 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 and stable output through its internal three-stage circuit design. It supports partial power down protection via IOFF functionality and offers over-voltage tolerant inputs and outputs up to 5.5 V. The component is housed in a UDFN6 package with dimensions of 1.45 x 1.0 mm.

Feature Summary

• TTL-level input thresholds for direct interfacing with 5 V circuits
• Partial power down protection capability via IOFF support
• Over-voltage tolerant inputs and outputs up to 5.5 V regardless of supply voltage
• High noise immunity and stable output performance

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 MU1TCG corresponds to the UDFN6 1.45 x 1.0 mm package with 0.5 mm pitch. Confirm that the GT designation indicates TTL input thresholds rather than CMOS levels. Ensure compliance with AEC-Q100 requirements if automotive qualification is necessary, noting that the -Q suffix denotes specific site and control change requirements.

Selection Notes

Select this component when TTL-compatible input thresholds are required for driving 3-state buffers in mixed-voltage environments. The UDFN6 package offers a compact footprint suitable for space-constrained designs. Consider the propagation delay characteristics under specific load conditions and supply voltages to ensure timing requirements are met in the target application circuit.

Part Context

This part belongs to the MC74VHC1GT125 series, which includes variants with different packages such as SC-88A, SC-74A, and other UDFN sizes. The MC74VHC1G125 variant shares similar electrical characteristics but utilizes CMOS-level input thresholds instead of TTL levels. All variants in this family share the same core functionality as single non-inverting 3-state buffers.

Replacement Considerations

MC74VHC1GT125MU2TCG (UDFN6 1.2 x 1.0 mm)

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 MC74VHC1GT125MU1TCG support partial power down?

Yes, the device supports partial power down protection through its IOFF feature, which prevents excessive current draw when VCC is zero.