onsemi MC74VHC04MELG

Overview

MC74VHC04MELG from onsemi is a high-speed CMOS hex inverter IC designed for logic-level inversion in 2 V to 5.5 V digital systems. It delivers 3.8 ns typical propagation delay at 5 V, supports full 5.0 V CMOS output swing, and tolerates input voltages up to 5.5 V-enabling robust 3.3 V/5.0 V level translation in mixed-voltage interfaces such as microcontroller I/O buffering and clock signal conditioning.

For engineers reviewing the MC74VHC04MELG datasheet, pinout, applications, or equivalent options, this device is selected for low-noise, rail-to-rail inversion with balanced tPLH/tPHL, high noise immunity (28% VCC), and compatibility with standard CMOS input thresholds-critical for stable operation in industrial control, automotive body electronics, and embedded peripheral interfacing.

Technical Context

The MC74VHC04MELG implements six independent inverting buffers using silicon gate CMOS technology, with three-stage internal circuitry including a dedicated output buffer stage that enhances noise immunity and output stability. Its inputs are compatible with standard CMOS logic levels (VIH = 0.7×VCC, VIL = 0.3×VCC), and it operates across the full 2.0–5.5 V supply range.

Input structures tolerate up to 5.5 V regardless of VCC, enabling safe interfacing between 3 V and 5 V domains without external level-shifting components. The device exhibits low dynamic noise (VOLP ≤ 0.8 V) and latchup immunity exceeding 100 mA per JEDEC JESD78 Class II, supporting reliable use in noisy industrial environments.

Key Specifications

Pinout & Package

MC74VHC04MELG is packaged in a 14-lead SOIC (Small Outline Integrated Circuit) with case number 751A, measuring 8.75 mm × 3.90 mm × 1.75 mm (L × W × H). The package is Pb-free and RoHS compliant.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar hex inverter applications.

Compared with SN74LVC04APWR and 74HC04D,653, the MC74VHC04MELG uniquely balances 5 V tolerance, 3.8 ns speed, and industrial temperature support - making it optimal for new designs requiring interoperability across 2.0–5.5 V domains without sacrificing timing or reliability.

Availability

MC74VHC04MELG is available at Aetrix Electronics and suitable for industrial automation, automotive body electronics, and embedded system clock conditioning requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for MC74VHC04MELG 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, logic, and sensing solutions for automotive, industrial, and cloud infrastructure markets.

The MC74VHC04MELG belongs to the VHC (Very High Speed CMOS) logic family, engineered for high-speed, low-power digital signal inversion in mixed-voltage embedded systems where reliability and interoperability are essential.

FAQ

What is the maximum operating temperature for MC74VHC04MELG?

The MC74VHC04MELG is rated for operation from −55°C to +125°C, meeting industrial and automotive under-hood requirements. This wide junction temperature range is validated per the manufacturer's Recommended Operating Conditions table and confirmed by thermal resistance (θJA = 116°C/W for SOIC-14) and derating curves in the official datasheet.

Does MC74VHC04MELG support 3.3 V to 5 V level translation?

Yes, the MC74VHC04MELG supports bidirectional level translation: its inputs tolerate up to 5.5 V regardless of VCC, and its outputs swing rail-to-rail (0 V to VCC). When powered at 5 V, it accepts 3.3 V logic inputs and produces full 5 V outputs - ideal for interfacing 3.3 V MCUs with 5 V peripherals.

Is MC74VHC04MELG pin-compatible with standard 74-series hex inverters?

Yes, MC74VHC04MELG uses the industry-standard 14-pin SOIC package with identical pinout to 74HC04, 74LS04, and 74AC04. Pin 1 is A1, pin 2 is Y1, ..., pin 7 is GND, pin 8 is VCC, ..., pin 14 is Y6 - enabling direct PCB replacement in most legacy designs without layout changes.

What is the input leakage current specification for MC74VHC04MELG?

The MC74VHC04MELG specifies maximum input leakage current (IIN) of ±0.1 µA at TA = 25°C and ±1.0 µA over the full −40°C to +85°C operating range. This ultra-low leakage ensures minimal loading on high-impedance sources such as RC timing networks or sensor outputs.

Can MC74VHC04MELG drive capacitive loads above 50 pF?

While the AC Electrical Characteristics are specified at CL = 15 pF and 50 pF, the MC74VHC04MELG can drive larger capacitive loads - propagation delay increases linearly with load capacitance. For CL = 100 pF, tPD rises to ~10.5 ns at 5 V; output drive strength (±8 mA) remains sufficient for moderate fanout, but signal integrity should be verified via simulation or bench test.