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

onsemi MC74VHCT04AMELG

Name: MC74VHCT04AMELG
Brand: onsemi
SKU: MC74VHCT04AMELG
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: MC74VHCT04AMELG

Manufacturer:: onsemi

Category:: Gates and Inverters

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

Datasheet:: MC74VHCT04AMELG.pdf

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

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Product details

Overview

MC74VHCT04AMELG from onsemi is a hex inverting buffer/driver IC operating at 5 V supply, featuring TTL-compatible inputs, CMOS outputs, propagation delay of 7.5 ns (max) at 50 pF load, and guaranteed operation from -40°C to +85°C. It serves as a level-shifting logic inverter in digital interface circuits between TTL and CMOS domains.

For engineers reviewing the MC74VHCT04AMELG datasheet, pinout, applications, or equivalent options, key selection considerations include input threshold compatibility with TTL logic levels, output drive strength for capacitive loads up to 50 pF, rail-to-rail CMOS output swing, and industrial temperature range support.

Technical Context

This device implements six independent CMOS inverters with buffered TTL-compatible input stages, enabling direct interfacing with legacy 5 V TTL logic while delivering full-rail CMOS output voltage swing. Each inverter provides symmetrical rise/fall times and supports fan-out of 10 LSTTL loads.

The MC74VHCT04AMELG uses silicon-gate CMOS technology for low static power consumption (max 2 µA at 25°C), high noise immunity (typical 0.45 V noise margin), and latch-up immunity per JESD78 Class II. It is not designed for mixed-voltage operation or 3.3 V core logic domains.

Key Specifications

Parameter	Value and Actual Design Meaning
Supply Voltage	4.5 V to 5.5 V - ensures compatibility with standard 5 V TTL/CMOS systems and tolerance to supply ripple.
Input Threshold	V_IL ≤ 0.8 V, V_IH ≥ 2.0 V - guarantees reliable recognition of TTL-level inputs without external level shifters.
Output Drive	I_OH/I_OL = ±8 mA - sufficient to drive 10 LSTTL loads or 50 pF transmission line capacitance.
Propagation Delay	t_PD = 7.5 ns (max) @ V_CC = 5 V, C_L = 50 pF - enables use in 10–15 MHz clock distribution or data path inversion.
Operating Temperature	-40°C to +85°C - validated for industrial-grade embedded control and instrumentation applications.
Quiescent Current	I_CC = 2 µA (max) @ 25°C - minimizes standby power in always-on logic subsystems.

Pinout & Package

MC74VHCT04AMELG is housed in a 14-pin SOIC (Small Outline Integrated Circuit) package with 1.27 mm pitch, JEDEC MS-012AC compliant, and rated for surface-mount reflow assembly.

Pin/Terminal	Circuit Role	Design Meaning
1, 3, 5, 9, 11, 13	Input (A1–A6)	Accepts TTL-compatible logic signals; internally biased to recognize 0.8 V low / 2.0 V high thresholds.
2, 4, 6, 10, 12, 14	Output (Y1–Y6)	CMOS push-pull outputs delivering rail-to-rail swing (0 V to V_CC) with ±8 mA drive capability.
7	GND	Logic ground reference; must be connected to system common return plane for noise immunity.
14	V_CC	Positive supply terminal; requires local 0.1 µF ceramic decoupling adjacent to pin.

Key Features

Feature	Design Value
TTL-Compatible Inputs	Enables direct connection to legacy 74LS/74ALS logic without pull-up resistors or level translators.
CMOS Outputs with High Drive	Delivers ±8 mA current into capacitive or resistive loads, supporting longer trace routing and multiple gate fan-out.
Low Static Power Consumption	Draws only 2 µA max ICC at 25°C, reducing thermal load in dense logic arrays.
Industrial Temperature Range	Validated operation from -40°C to +85°C ensures reliability in factory automation and outdoor electronics.

Applications

Industrial PLC I/O Modules	Digital Sensor Interface
Use Scenario: Signal conditioning and polarity inversion for discrete input cards receiving 24 V DC sensor signals via optocoupler interfaces. IC Role / Device Role / Timing Role: Inverter stage converting optocoupler output logic states to clean 5 V CMOS levels for microcontroller GPIO input. Use Value: Eliminates need for external pull-up resistors and reduces board space versus discrete transistor inverters.	Use Scenario: Level translation between 5 V analog-to-digital converter control lines and 5 V microcontroller SPI bus. IC Role / Device Role / Timing Role: Inverting buffer isolating ADC busy/status signals to prevent signal contention during read cycles. Use Value: Ensures monotonic edge transitions and meets 7.5 ns timing budget for 10 MHz SPI clock domains.
Legacy System Upgrades	Test Equipment Control Logic
Use Scenario: Retrofitting obsolete 74LS04-based test fixtures with pin-compatible CMOS replacements. IC Role / Device Role / Timing Role: Drop-in replacement inverter providing identical pinout and function but lower power and higher noise margin. Use Value: Reduces fixture self-heating and improves long-term calibration stability without PCB redesign.	Use Scenario: Generating complementary enable signals for dual-channel relay drivers in automated test equipment. IC Role / Device Role / Timing Role: Dual inverter pair producing synchronized active-low and active-high control outputs. Use Value: Guarantees matched propagation delays (<7.5 ns) between complementary paths, preventing race conditions.

Industrial PLC I/O Modules

Digital Sensor Interface

Use Scenario: Signal conditioning and polarity inversion for discrete input cards receiving 24 V DC sensor signals via optocoupler interfaces.

IC Role / Device Role / Timing Role: Inverter stage converting optocoupler output logic states to clean 5 V CMOS levels for microcontroller GPIO input.

Use Value: Eliminates need for external pull-up resistors and reduces board space versus discrete transistor inverters.

Use Scenario: Level translation between 5 V analog-to-digital converter control lines and 5 V microcontroller SPI bus.

IC Role / Device Role / Timing Role: Inverting buffer isolating ADC busy/status signals to prevent signal contention during read cycles.

Use Value: Ensures monotonic edge transitions and meets 7.5 ns timing budget for 10 MHz SPI clock domains.

Legacy System Upgrades

Test Equipment Control Logic

Use Scenario: Retrofitting obsolete 74LS04-based test fixtures with pin-compatible CMOS replacements.

IC Role / Device Role / Timing Role: Drop-in replacement inverter providing identical pinout and function but lower power and higher noise margin.

Use Value: Reduces fixture self-heating and improves long-term calibration stability without PCB redesign.

Use Scenario: Generating complementary enable signals for dual-channel relay drivers in automated test equipment.

IC Role / Device Role / Timing Role: Dual inverter pair producing synchronized active-low and active-high control outputs.

Use Value: Guarantees matched propagation delays (<7.5 ns) between complementary paths, preventing race conditions.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
SN74HCT04DR	Same 5 V supply, TTL-compatible inputs, but slightly higher I_CC (4 µA max) and slower t_PD (11 ns max).	Valid for same industrial temperature range but less suitable for high-speed 10+ MHz signal paths.	Select when legacy TI design reuse is prioritized over minimal propagation delay.
74VHC04M	CMOS-input version; requires ≥3.5 V V_IH, lacks TTL threshold compatibility.	Not interoperable with 74LS/74ALS sources without external biasing or level shifting.	Choose only if driving source is pure CMOS and supply is stable 5 V.

Compared with SN74HCT04DR and 74VHC04M, the MC74VHCT04AMELG offers the lowest propagation delay and strictest TTL input compatibility-critical for retrofitting legacy TTL systems while maintaining timing margins in 10–15 MHz digital control paths.

Availability

MC74VHCT04AMELG is available at Aetrix Electronics and suitable for industrial PLC I/O modules, digital sensor interface circuits, and legacy system upgrades requiring stable component supply and long-term lifecycle assurance.

Supply support for MC74VHCT04AMELG 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 is a global semiconductor leader delivering energy-efficient, intelligent power and sensing solutions for automotive, industrial, cloud, medical, and IoT applications.

The MC74VHCT04AMELG belongs to the VHCT logic family, engineered specifically for seamless 5 V TTL-to-CMOS interfacing in industrial control and instrumentation systems where reliability, noise immunity, and timing predictability are critical.

FAQ

What is the maximum capacitive load the MC74VHCT04AMELG can drive reliably?

The MC74VHCT04AMELG is characterized to drive up to 50 pF load capacitance with guaranteed 7.5 ns propagation delay and full-rail output swing. Driving loads beyond 50 pF may increase delay unpredictably and risk signal integrity degradation due to ringing or undershoot, especially on unterminated traces. For >50 pF applications, consider adding series termination or using a driver with higher output current.

Does the MC74VHCT04AMELG support mixed-voltage operation, such as 3.3 V inputs with 5 V supply?

No, the MC74VHCT04AMELG does not support mixed-voltage operation. Its input thresholds are fixed for TTL compatibility (V_IL ≤ 0.8 V, V_IH ≥ 2.0 V), and it requires a 4.5–5.5 V supply. Applying 3.3 V logic signals directly risks marginal recognition of high states and violates the absolute maximum input voltage rating relative to V_CC. Use a dedicated level translator for 3.3 V to 5 V interfacing.

Is the MC74VHCT04AMELG pin-compatible with the obsolete 74LS04?

Yes, the MC74VHCT04AMELG has identical pinout and logic function to the 74LS04, making it a direct drop-in replacement in 14-pin SOIC footprints. It retains the same input/output assignments (pins 1–2, 3–4, etc.) and operates on the same 5 V supply, while offering improved noise immunity, lower power, and wider temperature range than the bipolar 74LS04.

What is the recommended decoupling for the MC74VHCT04AMELG?

A 0.1 µF X7R ceramic capacitor placed within 2 mm of the V_CC (pin 14) and GND (pin 7) terminals is required for stable operation. This minimizes high-frequency supply impedance and suppresses switching noise coupling into adjacent logic. For boards with multiple MC74VHCT04AMELG devices, one shared 4.7 µF bulk capacitor per 3–5 ICs is also advised.

Can the MC74VHCT04AMELG be used in battery-powered applications?

Yes, the MC74VHCT04AMELG draws only 2 µA max quiescent current at 25°C, making it suitable for low-power battery-operated systems where logic inversion is needed infrequently. However, its 4.5–5.5 V supply requirement means it cannot operate directly from single-cell Li-ion (3.0–4.2 V) or alkaline (0.9–1.5 V/cell) sources without a boost regulator or LDO to generate stable 5 V.

MC74VHCT04AMELG Specifications

Product attributes: Attribute value

Manufacturer:: onsemi

Series:: 74VHCT

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:: 4.5V ~ 5.5V

Current - Quiescent (Max):: 2 µA

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

Input Logic Level - Low:: 0.8V

Input Logic Level - High:: 2V

Max Propagation Delay @ V, Max CL:: 7.7ns @ 5V, 50pF

Operating Temperature:: -40°C ~ 85°C

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: SOEIAJ-14

MC74VHCT04AMELG FAQ

1.How can I place an order for MC74VHCT04AMELG through Aetrix?

Please submit a Request for Quotation (RFQ) for MC74VHCT04AMELG 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 MC74VHCT04AMELG reliable?

The price and inventory of MC74VHCT04AMELG are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MC74VHCT04AMELG is usually 5 days.

3.What payment methods are accepted for MC74VHCT04AMELG?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MC74VHCT04AMELG transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for MC74VHCT04AMELG?

MC74VHCT04AMELG orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your MC74VHCT04AMELG 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 MC74VHCT04AMELG?

For technical support, including MC74VHCT04AMELG datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MC74VHCT04AMELG requirements.

6.How does Aetrix verify that MC74VHCT04AMELG is sourced from the original manufacturer or authorized distributors?

All MC74VHCT04AMELG 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 MC74VHCT04AMELG meets industry standards.

7.What is the process for return or replacement of MC74VHCT04AMELG?

All MC74VHCT04AMELG units undergo pre-shipment inspection (PSI). If there is an issue with MC74VHCT04AMELG, 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 MC74VHCT04AMELG part is unused and in its original packaging.

Return procedure for MC74VHCT04AMELG:

1.Submit a request within 90 days.

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

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