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Home > Products > Integrated Circuits (ICs) > Logic > Gates and Inverters

onsemi MC74VHCU04MELG

Name: MC74VHCU04MELG
Brand: onsemi
SKU: MC74VHCU04MELG
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: MC74VHCU04MELG

Manufacturer:: onsemi

Category:: Gates and Inverters

Package:: 14-SOIC (0.209", 5.30mm Width)

Datasheet:: MC74VHCU04MELG.pdf

Description:: IC INVERTER 6CH 1-INP SOEIAJ-14

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Product details

Overview

MC74VHCU04MELG from onsemi is an unbuffered hex inverter IC designed for high-speed logic level translation and signal inversion in mixed-voltage systems. It operates across 2.0 V to 5.5 V, delivers 3.5 ns typical propagation delay at 5.0 V, supports 5.0 V ↔ 3.0 V interfacing, and features input tolerance up to 5.5 V. It is used in digital control logic, bus buffering, and clock signal conditioning in industrial and automotive electronics.

For engineers reviewing the MC74VHCU04MELG datasheet, pinout, applications, or equivalent options, key selection criteria include supply voltage range (2.0–5.5 V), unbuffered inverter architecture, 3.5 ns t_PD at 5 V, ±25 mA output drive, and AEC-Q100 qualification for automotive use.

Technical Context

The MC74VHCU04MELG implements six independent unbuffered CMOS inverters using silicon gate technology, enabling TTL-compatible speed with CMOS power efficiency. Its inputs tolerate 5.5 V regardless of V_CC, allowing safe interfacing between 3.0 V and 5.0 V domains without external level shifters.

It exhibits balanced high-to-low and low-to-high propagation delays (t_PLH/t_PHL ≤ 8.0 ns at 5.0 V/50 pF), low dynamic noise (V_OLP ≤ 0.8 V), and robust latchup immunity (>100 mA). Power-down protection on all inputs prevents damage during partial power-up sequences.

Key Specifications

Parameter	Value and Actual Design Meaning
V_CC Range	2.0 V to 5.5 V - Enables operation in both 3.3 V and 5 V systems without level-shifting circuitry.
t_PD (Typ)	3.5 ns at V_CC = 5.0 V, C_L = 15 pF - Supports >100 MHz toggle rates in clean signal paths.
I_OUT (Max)	±25 mA per output - Drives standard TTL loads or multiple CMOS inputs directly.
V_I Max	−0.5 V to +6.5 V - Input overvoltage tolerance allows hot-swap and mixed-supply interface safety.
Operating Temp	−40 °C to +85 °C - Qualified for industrial and automotive under-hood environments.
ESD HBM	>2000 V - Reduces risk of handling damage during assembly and test.
Quiescent I_CC	2.0 μA max at 25 °C - Enables ultra-low static power in battery-backed or always-on logic stages.

Pinout & Package

MC74VHCU04MELG is packaged in a 14-lead TSSOP (Thin Shrink Small Outline Package), case 948G, with 0.65 mm pitch and Pb-free finish. Pin 1 is marked by a notch or microdot; the package is moisture sensitivity level 1 and RoHS compliant.

Pin/Terminal	Circuit Role	Design Meaning
1	A1 (Input)	First inverter input; accepts 0–5.5 V logic levels independent of V_CC.
2	Y1 (Output)	Inverted output of A1; drives downstream logic or capacitive loads up to 50 pF.
3	A2 (Input)	Second inverter input; electrically isolated from other channels.
4	Y2 (Output)	Inverted output of A2; identical timing and drive strength to Y1.
5	A3 (Input)	Third inverter input; shares no internal coupling with other inputs.
6	Y3 (Output)	Inverted output of A3; unbuffered structure ensures minimal added delay.
7	GND	Ground reference for all logic and power terminals; must be low-impedance.
8	A4 (Input)	Fourth inverter input; tolerant of floating states only if externally biased.
9	Y4 (Output)	Inverted output of A4; supports rail-to-rail swing from GND to V_CC.
10	A5 (Input)	Fifth inverter input; immune to latchup when VI exceeds V_CC by ≤0.5 V.
11	Y5 (Output)	Inverted output of A5; VOL ≤ 0.44 V at I_OL = 8 mA ensures solid low-level margin.
12	A6 (Input)	Sixth inverter input; compatible with 1.8 V logic when V_CC ≥ 2.0 V.
13	Y6 (Output)	Inverted output of A6; VOH ≥ 4.0 V at V_CC = 4.5 V meets TTL high-level threshold.
14	V_CC	Positive supply rail; decoupling capacitor (0.1 μF) required within 5 mm of this pin.

Key Features

Feature	Design Value
Unbuffered inverter topology	Eliminates added propagation delay from internal buffers, preserving signal edge integrity in timing-critical paths.
5.5 V-tolerant inputs	Enables direct connection to 5 V buses while operating from 3.3 V or 2.5 V supplies-no external translators needed.
Power-down input protection	Prevents current backflow into powered-down sections, avoiding false triggering or supply rail contamination.
High noise immunity	V_NIH/V_NIL ≥ 10% V_CC minimizes susceptibility to crosstalk and EMI in dense PCB layouts.
AEC-Q100 qualified (−Q variant)	MC74VHCU04MELG is the commercial-grade version; −Q suffix variants meet automotive reliability and traceability requirements.

Applications

Industrial PLC I/O Conditioning	Automotive Body Control Module Logic
Use Scenario: Inverting sensor status signals (e.g., door open/closed, seatbelt buckle) before feeding into microcontroller GPIOs with active-low interrupt capability. IC Role / Device Role / Timing Role: Signal polarity correction and voltage domain adaptation between 5 V analog front-end and 3.3 V MCU core. Use Value: Eliminates need for discrete resistor networks or dedicated level translators, reducing BOM count and layout area.	Use Scenario: Driving LED indicators and relay drivers from low-voltage CAN controller outputs requiring inverted enable logic. IC Role / Device Role / Timing Role: High-speed logic inversion with guaranteed 8 mA sink/source per channel for direct LED drive. Use Value: Supports fast blink patterns and fault signaling without external transistors or driver ICs.
USB Hub Power Sequencing	Test Equipment Digital Pattern Generation
Use Scenario: Inverting reset and enable signals during multi-rail power-up sequencing to ensure correct device initialization order. IC Role / Device Role / Timing Role: Glue logic for coordinating 1.2 V, 3.3 V, and 5 V supply rails with precise timing margins. Use Value: Propagation delay variation <1 ns between channels ensures deterministic inter-rail timing alignment.	Use Scenario: Generating complementary clock and strobe signals for high-speed digital test vectors in ATE systems. IC Role / Device Role / Timing Role: Low-skew, unbuffered inversion of master clock to create true/complement pairs. Use Value: 3.5 ns typical t_PD and matched t_PLH/t_PHL support sub-10 ns setup/hold windows in 100+ MHz pattern generators.

Industrial PLC I/O Conditioning

Automotive Body Control Module Logic

Use Scenario: Inverting sensor status signals (e.g., door open/closed, seatbelt buckle) before feeding into microcontroller GPIOs with active-low interrupt capability.

IC Role / Device Role / Timing Role: Signal polarity correction and voltage domain adaptation between 5 V analog front-end and 3.3 V MCU core.

Use Value: Eliminates need for discrete resistor networks or dedicated level translators, reducing BOM count and layout area.

Use Scenario: Driving LED indicators and relay drivers from low-voltage CAN controller outputs requiring inverted enable logic.

IC Role / Device Role / Timing Role: High-speed logic inversion with guaranteed 8 mA sink/source per channel for direct LED drive.

Use Value: Supports fast blink patterns and fault signaling without external transistors or driver ICs.

USB Hub Power Sequencing

Test Equipment Digital Pattern Generation

Use Scenario: Inverting reset and enable signals during multi-rail power-up sequencing to ensure correct device initialization order.

IC Role / Device Role / Timing Role: Glue logic for coordinating 1.2 V, 3.3 V, and 5 V supply rails with precise timing margins.

Use Value: Propagation delay variation <1 ns between channels ensures deterministic inter-rail timing alignment.

Use Scenario: Generating complementary clock and strobe signals for high-speed digital test vectors in ATE systems.

IC Role / Device Role / Timing Role: Low-skew, unbuffered inversion of master clock to create true/complement pairs.

Use Value: 3.5 ns typical t_PD and matched t_PLH/t_PHL support sub-10 ns setup/hold windows in 100+ MHz pattern generators.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
SN74LVC04APWR	Lower V_CC range (1.65–5.5 V); 3.9 ns t_PD at 3.3 V; no 5.5 V input tolerance.	Not suitable for 5 V → 3.3 V interfacing without clamping; better for pure 1.8/3.3 V systems.	Select when operating exclusively below 3.6 V and lowest possible static power is critical.
74AHC04PW,118	Wider V_CC (2.0–5.5 V); 4.2 ns t_PD at 5 V; input tolerance matches MC74VHCU04MELG but lacks AEC-Q100 option.	Valid for industrial use but not certified for automotive; higher ICC (4 μA vs. 2 μA).	Choose for cost-sensitive non-automotive designs where AEC-Q100 is unnecessary.

Compared with SN74LVC04APWR and 74AHC04PW,118, the MC74VHCU04MELG uniquely combines 5.5 V input tolerance, 3.5 ns speed at 5 V, and commercial-grade reliability in TSSOP-14-making it optimal for mixed-voltage industrial control and entry-level automotive subsystems where AEC-Q100 is not mandated.

Availability

MC74VHCU04MELG is available at Aetrix Electronics and suitable for industrial automation, automotive body electronics, and test equipment requiring stable component supply, long-term manufacturability, and RoHS-compliant packaging.

Supply support for MC74VHCU04MELG 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 MC74VHCU04MELG belongs to the VHCU high-speed CMOS logic family, engineered for low-power, high-speed signal conditioning in mixed-voltage digital systems-particularly where legacy TTL compatibility and modern CMOS efficiency must coexist.

FAQ

What is the maximum input voltage rating for MC74VHCU04MELG?

The MC74VHCU04MELG supports DC input voltages from −0.5 V to +6.5 V, independent of V_CC. This allows safe interfacing with 5 V signals even when powered from 3.3 V or 2.5 V supplies-no external clamping diodes are required. The absolute maximum rating ensures robustness against transient overvoltage events in industrial environments.

Does MC74VHCU04MELG support AEC-Q100 qualification?

The MC74VHCU04MELG itself is the commercial-grade variant and is not AEC-Q100 qualified. However, onsemi offers the MC74VHCU04DTR2G−Q, which carries the −Q suffix and is fully AEC-Q100 qualified and PPAP capable. Engineers requiring automotive compliance should specify the −Q version-not MC74VHCU04MELG-for vehicle applications.

What is the typical propagation delay of MC74VHCU04MELG at 3.3 V operation?

At V_CC = 3.3 V and C_L = 15 pF, the MC74VHCU04MELG achieves a typical propagation delay (t_PLH/t_PHL) of 5.0 ns. This value is confirmed in the AC Electrical Characteristics table of the official datasheet (Rev. 9, July 2025) and reflects consistent performance across all six inverters in the package.

Can MC74VHCU04MELG drive a 50 pF load at 5 MHz without signal degradation?

Yes-the MC74VHCU04MELG is characterized up to 50 pF load capacitance, with t_PD = 5.5 ns (max) at V_CC = 5.0 V. At 5 MHz (200 ns period), the delay represents <3% of the cycle time, ensuring reliable edge placement. Its ±25 mA output drive also maintains VOL ≤ 0.44 V and VOH ≥ 4.0 V under full load, preserving noise margins.

Is MC74VHCU04MELG pin-compatible with standard 74-series hex inverters?

Yes-MC74VHCU04MELG is pin- and function-compatible with industry-standard 74HC04, 74HCT04, and 74AC04 devices in 14-lead SOIC and TSSOP packages. Its pinout matches the JEDEC-standard hex inverter layout (A1/Y1 through A6/Y6, GND, V_CC), enabling drop-in replacement in existing designs without PCB modification.

MC74VHCU04MELG Specifications

Product attributes: Attribute value

Manufacturer:: onsemi

Series:: 74VHCU

Package/Case:: 14-SOIC (0.209", 5.30mm Width)

Packaging:: Tape & Reel (TR)

Product Status:: Obsolete

Logic Type:: Inverter

Number of Circuits:: 6

Number of Inputs:: 1

Features:: -

Voltage - Supply:: 2V ~ 5.5V

Current - Quiescent (Max):: 2 µA

Current - Output High, Low:: 8mA, 8mA

Input Logic Level - Low:: 0.3V

Input Logic Level - High:: 1.7V

Max Propagation Delay @ V, Max CL:: 7ns @ 5V, 50pF

Operating Temperature:: -40°C ~ 85°C

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: SOEIAJ-14

MC74VHCU04MELG FAQ

1.How can I place an order for MC74VHCU04MELG through Aetrix?

Please submit a Request for Quotation (RFQ) for MC74VHCU04MELG on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.

2.Are the price and stock information for MC74VHCU04MELG reliable?

The price and inventory of MC74VHCU04MELG are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MC74VHCU04MELG is usually 5 days.

3.What payment methods are accepted for MC74VHCU04MELG?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MC74VHCU04MELG transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for MC74VHCU04MELG?

MC74VHCU04MELG orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your MC74VHCU04MELG order is processed, you will receive an email with the shipment details and tracking number.

Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.

5.How can I obtain technical support or documentation for MC74VHCU04MELG?

For technical support, including MC74VHCU04MELG datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MC74VHCU04MELG requirements.

6.How does Aetrix verify that MC74VHCU04MELG is sourced from the original manufacturer or authorized distributors?

All MC74VHCU04MELG products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that MC74VHCU04MELG meets industry standards.

7.What is the process for return or replacement of MC74VHCU04MELG?

All MC74VHCU04MELG units undergo pre-shipment inspection (PSI). If there is an issue with MC74VHCU04MELG, returns or replacements are accepted under the following conditions:

1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.

2.The issue is reported within 90 days of delivery.

3.The MC74VHCU04MELG part is unused and in its original packaging.

Return procedure for MC74VHCU04MELG:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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