NLVVHC1GT14DFT1

Overview

The NLVVHC1GT14DFT1 is a single Schmitt-trigger inverter from the onsemi VHC logic family, designed for operation within a 2.0 V to 5.5 V supply voltage range. It features TTL-level input thresholds and provides buffered output with high noise immunity. The device incorporates over-voltage tolerant input and output structures that protect against voltages up to 5.5 V regardless of the supply voltage, enabling safe interfacing between 5 V and 3 V circuits. It supports partial power-down protection via IOFF and operates across an extended temperature range of -55°C to +125°C.

Feature Summary

• Single Schmitt-trigger inverter with TTL-level input thresholds for stable signal conditioning
• Over-voltage tolerant I/O structures providing protection up to 5.5 V independent of supply voltage
• IOFF feature supports partial power-down mode to prevent excessive current draw
• Buffered output design ensures high noise immunity and stable switching performance

Applications

• Interfacing 5 V digital circuits with 3 V logic systems
• Signal conditioning for slowly changing waveforms requiring hysteresis
• Noise-immune buffering in portable battery-powered devices
• Hot-insertion protection in system bus interfaces

Procurement Notes

Verify the NLV prefix indicates AEC-Q100 qualification and PPAP capability if automotive compliance is required. Confirm the DFT suffix corresponds to the SC-88A (SC-70-5/SOT-353) package type. Check current lifecycle status as manufacturing changes may affect availability. Ensure RoHS and halogen-free compliance matches project specifications. Validate supplier documentation against the official onsemi datasheet for accurate electrical parameters.

Selection Notes

Select this component when TTL-compatible input thresholds are necessary for CMOS-level outputs. The VHC series offers higher speed than standard HC logic while maintaining low power consumption. Consider the SC-88A package for space-constrained surface-mount designs. Verify that the 8 mA drive current meets load requirements. The extended temperature range supports industrial and automotive environments where thermal stability is critical for reliable operation.

Part Context

This part belongs to the MC74VHC1G/VT14 series of single Schmitt-trigger inverters. The NLV prefix distinguishes it as an automotive-grade variant requiring specific site controls and AEC-Q100 qualification. It shares functional similarities with the MC74VHC1GT14 but differs in qualification standards. The VHC family combines advanced CMOS technology with high-speed performance, making it suitable for modern low-voltage digital applications requiring robust noise rejection capabilities.

Replacement Considerations

MC74VHC1GT14DFT1G serves as a non-automotive equivalent with identical electrical characteristics. M74VHC1GT14DTT1G offers the same function in a TSOP-5 package instead of SC-88A. Verify package compatibility and qualification requirements before substitution. Automotive applications should retain the NLV prefix parts for proper traceability and reliability assurance.