MC74VHC1G125DFT1G-Q

Overview

The MC74VHC1G125DFT1G-Q is a single non-inverting 3-state buffer manufactured by onsemi. It operates within a supply voltage range of 2.0 V to 5.5 V and features CMOS-level input thresholds. The device provides high noise immunity through a buffered three-stage internal circuit. It supports partial power down protection via IOFF functionality and includes over-voltage tolerant inputs and outputs up to 5.5 V, enabling safe interfacing between 5 V and 3 V circuits. The component is housed in an SC-88A package.

Feature Summary

• Single non-inverting 3-state buffer with buffered output for stable performance
• IOFF feature enables partial power down protection
• Inputs and outputs tolerate voltages up to 5.5 V regardless of supply level
• AEC-Q100 qualified with PPAP capability for automotive applications

Applications

• Interfacing 5 V logic circuits to 3 V logic circuits
• Automotive electronic systems requiring AEC-Q100 qualification
• Battery backup systems where hot insertion protection is required
• High noise immunity signal buffering in compact footprints

Procurement Notes

Verify the -Q suffix indicates AEC-Q100 qualification and PPAP capability as specified in the datasheet. Confirm the SC-88A package type matches the design requirements. Ensure the ordering code corresponds to the specific tape and reel shipping configuration. Check for RoHS compliance and Pb-free status during procurement validation.

Selection Notes

Select this component when a single-channel non-inverting buffer with 3-state control is required. The CMOS input threshold distinguishes it from TTL-threshold variants. Consider the SC-88A package size for space-constrained designs. Verify that the 5.5 V I/O tolerance meets the system's voltage mismatch protection needs.

Part Context

This part belongs to the MC74VHC1G125 family of single non-inverting 3-state buffers. It shares functional similarities with the MC74VHC1GT125 but differs in input threshold levels. The -Q suffix denotes automotive-grade manufacturing with unique site and control change requirements. Other packages include SOT-953 and UDFN6 variants.

Replacement Considerations

MC74VHC1G125DFT1G serves as the standard commercial version without automotive qualification. MC74VHC1GT125DFT1G offers TTL-level input thresholds instead of CMOS. MC74VHC1G125DBVT1G utilizes the SC-74A package. Verify pinout compatibility and electrical specifications before substitution.