onsemi NLV74VHC1G07DTT1G

Overview

NLV74VHC1G07DTT1G from onsemi is a single non-inverting buffer with open-drain output, designed for level-shifting and wired-OR logic applications in mixed-voltage systems. It operates from 2.0 V to 5.5 V, delivers 3.5 ns typical propagation delay at 5 V, supports ±8 mA output drive at 3.0 V, and features overvoltage-tolerant inputs/outputs up to 5.5 V - enabling reliable interfacing between 3 V and 5 V domains in industrial control I/O modules.

For engineers reviewing the NLV74VHC1G07DTT1G datasheet, pinout, applications, or equivalent options, key selection criteria include open-drain output compatibility with I²C bus pull-up networks, IOFF partial power-down protection for hot-swap subsystems, and AEC-Q100 qualification for automotive body electronics designs requiring robust voltage translation.

Technical Context

The NLV74VHC1G07DTT1G implements a CMOS-based non-inverting buffer stage with an open-drain N-channel MOSFET output stage, allowing external pull-up to any voltage ≤5.5 V independent of VCC. Its input structure includes overvoltage protection diodes rated for continuous 5.5 V input regardless of supply voltage, supporting true 5 V-tolerant operation even when VCC = 2.0 V.

IOFF circuitry actively disables input and output leakage paths when VCC = 0 V, preventing back-powering of powered-down rails. The device uses sub-100 FET logic complexity and is specified across −55 °C to +125 °C, meeting automotive-grade thermal and reliability requirements without derating.

Key Specifications

Pinout & Package

Package: SC-74A (SOT-23-5), 3.00 mm × 1.50 mm × 0.95 mm, lead pitch 0.95 mm, RoHS-compliant, Pb-free.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar open-drain buffer applications.

Compared with MC74VHC1G07DBVT1G, NLV74VHC1G07DTT1G offers identical performance in a different package variant (SC-74A vs. SC-88A), while SN74LVC1G07DBVR provides comparable functionality without automotive qualification - making NLV74VHC1G07DTT1G the only option here with full AEC-Q100 Grade 1 support and proven 125 °C operation.

Availability

NLV74VHC1G07DTT1G is available at Aetrix Electronics and suitable for automotive body control modules, industrial I/O conditioners, and hot-swappable telecom interface cards requiring stable component supply across extended temperature and long product lifecycles.

Supply support for NLV74VHC1G07DTT1G includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

onsemi (formerly ON Semiconductor) is a global semiconductor supplier specializing in energy-efficient power management, analog, sensing, and connectivity solutions for automotive, industrial, and cloud infrastructure markets.

The NLV74VHC1G07DTT1G belongs to the VHC logic family - engineered for high-speed, low-power, mixed-voltage interfacing in harsh-environment applications including automotive electronics and factory automation.

FAQ

What is the function of Pin 1 (NC) on the NLV74VHC1G07DTT1G?

Pin 1 is a no-connect terminal with no internal connection. It must not be soldered to any net on the PCB. Leaving it floating is acceptable, though grounding it is recommended in high-noise environments to reduce parasitic coupling. This pin has no effect on the operation of NLV74VHC1G07DTT1G and does not influence timing, drive strength, or voltage tolerance.

Can NLV74VHC1G07DTT1G interface a 5 V input signal to a 3.3 V microcontroller GPIO?

Yes - NLV74VHC1G07DTT1G accepts input voltages up to 5.5 V regardless of VCC, so a 5 V signal applied to Pin 2 (A) is safely translated to a valid CMOS logic level for a 3.3 V MCU. The output (Pin 4, Y) remains open-drain, requiring an external pull-up to 3.3 V to generate a compatible high-level signal for the MCU's input.

Does NLV74VHC1G07DTT1G support I²C bus operation?

Yes - NLV74VHC1G07DTT1G is commonly used for I²C level translation due to its open-drain output, 5.5 V-tolerant inputs, and fast 3.5 ns typical propagation delay. When configured with appropriate pull-ups, it maintains I²C timing budgets for Standard (100 kHz) and Fast Mode (400 kHz); however, it does not provide bus arbitration or clock stretching - those functions remain with the master and slaves.

What is the significance of the "NLV" prefix in NLV74VHC1G07DTT1G?

The "NLV" prefix indicates an onsemi automotive-grade variant: it denotes AEC-Q100 qualification, extended temperature operation (−55 °C to +125 °C), and PPAP capability. Unlike standard VHC parts, NLV74VHC1G07DTT1G undergoes additional stress testing and lot traceability - confirming suitability for safety-critical automotive body electronics where reliability under thermal cycling and vibration is mandatory.

How does IOFF protection work in NLV74VHC1G07DTT1G during power-down sequences?

When VCC drops to 0 V, NLV74VHC1G07DTT1G activates IOFF circuitry that disables conduction paths at both input (Pin 2) and output (Pin 4), limiting leakage to ≤10 µA. This prevents back-powering of the VCC rail from externally driven signals - a critical feature in modular systems where NLV74VHC1G07DTT1G may sit between independently powered subsystems during maintenance or firmware updates.