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

onsemi MC74HCT04AFEL

Name: MC74HCT04AFEL
Brand: onsemi
SKU: MC74HCT04AFEL
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: MC74HCT04AFEL

Manufacturer:: onsemi

Category:: Gates and Inverters

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

Datasheet:: MC74HCT04AFEL.pdf

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

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Product details

Overview

MC74HCT04AFEL from onsemi is a hex inverter IC with LSTTL-compatible inputs, designed for level-shifting between TTL/NMOS outputs and high-speed CMOS inputs. It operates from 4.5 V to 5.5 V, delivers ±25 mA output drive per pin, supports −55 °C to +125 °C industrial temperature range, and features 19 ns max propagation delay at 5 V/50 pF - used in logic interfacing, bus buffering, and clock signal inversion in industrial control systems.

For engineers reviewing the MC74HCT04AFEL datasheet, pinout, applications, or equivalent options, key selection criteria include TTL-compatible input thresholds (VIH = 2.0 V, VIL = 0.8 V), rail-to-rail CMOS-compatible outputs (VOH ≥ 4.4 V, VOL ≤ 0.1 V @ 20 µA), low input leakage (±0.1 µA), and SOEIAJ-14 package compatibility with JEDEC-standard footprint.

Technical Context

The MC74HCT04AFEL implements six independent CMOS inverters using silicon-gate technology, with input stages engineered to match LSTTL voltage thresholds while driving standard CMOS, NMOS, and TTL loads. Its architecture ensures direct interoperability with legacy TTL logic without external level-shifting components.

Each inverter exhibits symmetrical propagation delays (tPLH/tPHL ≤ 19 ns at 125 °C), controlled output transition times (tTLH/tTHL ≤ 22 ns), and input capacitance of 10 pF - enabling reliable operation in noise-sensitive digital interfaces and timing-critical signal conditioning paths.

Key Specifications

Parameter	Value and Actual Design Meaning
Supply Voltage Range	4.5 V to 5.5 V - ensures stable operation across standard 5 V rail tolerances in industrial power supplies.
Input High Threshold (VIH)	2.0 V min - guarantees recognition of TTL-high signals (≥2.0 V) as logic HIGH without external biasing.
Input Low Threshold (VIL)	0.8 V max - reliably interprets TTL-low signals (≤0.8 V) as logic LOW under worst-case noise margins.
Output Drive (I_OH/I_OL)	±25 mA per pin - supports direct fanout to 10 LSTTL loads without buffer amplification.
Propagation Delay (t_PLH/t_PHL)	19 ns max at 125 °C, 5 V, 50 pF - enables use in sub-25 MHz digital control loops with deterministic timing.
Operating Temperature	−55 °C to +125 °C - qualified for under-hood automotive, motor drive, and industrial PLC environments.
Input Leakage Current	±0.1 µA max at 25 °C - minimizes static current draw in battery-backed or low-power standby circuits.

Pinout & Package

MC74HCT04AFEL is housed in a 14-lead SOEIAJ (JEDEC MS-012) surface-mount package (Case 965), with 1.27 mm pitch, 8.20 mm × 5.45 mm body size, and gull-wing leads compatible with standard reflow profiles.

Pin/Terminal	Circuit Role	Design Meaning
1, 3, 5, 9, 11, 13	Inverter Input (A1–A6)	Accepts TTL/NMOS-level logic signals; internally biased to recognize 2.0 V/0.8 V thresholds.
2, 4, 6, 8, 10, 12	Inverter Output (Y1–Y6)	CMOS-compatible rail-swing outputs capable of sourcing/sinking ±25 mA per pin.
7	GND	Ground reference for all inputs, outputs, and internal circuitry; must be low-impedance connection.
14	V_CC	Positive supply terminal; requires local 0.1 µF ceramic decoupling adjacent to pin.

Key Features

Feature	Design Value
LSTTL-compatible inputs	Enables plug-in replacement of 74LS04 in legacy designs without redesigning input interface networks.
10 LSTTL load drive	Eliminates need for external buffer stages when driving multiple TTL inputs in bus architectures.
Pb-free, RoHS-compliant	Meets EU Directive 2011/65/EU and JESD204B process requirements for environmentally constrained applications.
JEDEC Std. No. 7A compliance	Guarantees interoperability with industry-standard test equipment, handlers, and automated assembly systems.
Low quiescent ICC (1 µA typ.)	Reduces system-level standby power in always-on monitoring circuits without sacrificing switching performance.

Applications

Industrial PLC I/O Conditioning	Automotive Body Control Module Logic
Use Scenario: Inverting sensor status signals (e.g., door open/closed, brake switch) before feeding into microcontroller GPIOs with weak internal pull-ups. IC Role / Device Role / Timing Role: Signal polarity correction and noise-immune level translation from mechanical switch outputs to 5 V CMOS logic. Use Value: Eliminates external resistive pull-up networks and ensures clean, fast edge transitions (<19 ns) for accurate interrupt capture.	Use Scenario: Converting inverted CAN transceiver fault flags or LIN bus wake-up signals to active-HIGH logic levels for MCU interrupt inputs. IC Role / Device Role / Timing Role: Level-shifting and inversion of open-drain diagnostic outputs to full-rail CMOS-compatible signals. Use Value: Provides robust 125 °C-rated interface with guaranteed VIH/VIL margins across vehicle temperature extremes.
Legacy TTL-to-CMOS Bus Interface	Programmable Logic Power-Up Sequencing
Use Scenario: Interfacing aging 74LS-series address/data buffers to modern FPGA or ASIC I/O banks requiring 5 V tolerant CMOS inputs. IC Role / Device Role / Timing Role: Bidirectional voltage domain bridging with matched tPLH/tPHL to prevent data skew in parallel buses. Use Value: Maintains setup/hold timing integrity across 14-pin bus segments without adding propagation delay variation.	Use Scenario: Generating synchronized reset inversion and enable signals during multi-rail power supply sequencing in industrial HMIs. IC Role / Device Role / Timing Role: Glue logic for generating complementary control edges with deterministic delay matching. Use Value: Ensures monotonic power-up behavior by guaranteeing simultaneous assertion of inverted and non-inverted control lines.

Industrial PLC I/O Conditioning

Automotive Body Control Module Logic

Use Scenario: Inverting sensor status signals (e.g., door open/closed, brake switch) before feeding into microcontroller GPIOs with weak internal pull-ups.

IC Role / Device Role / Timing Role: Signal polarity correction and noise-immune level translation from mechanical switch outputs to 5 V CMOS logic.

Use Value: Eliminates external resistive pull-up networks and ensures clean, fast edge transitions (<19 ns) for accurate interrupt capture.

Use Scenario: Converting inverted CAN transceiver fault flags or LIN bus wake-up signals to active-HIGH logic levels for MCU interrupt inputs.

IC Role / Device Role / Timing Role: Level-shifting and inversion of open-drain diagnostic outputs to full-rail CMOS-compatible signals.

Use Value: Provides robust 125 °C-rated interface with guaranteed VIH/VIL margins across vehicle temperature extremes.

Legacy TTL-to-CMOS Bus Interface

Programmable Logic Power-Up Sequencing

Use Scenario: Interfacing aging 74LS-series address/data buffers to modern FPGA or ASIC I/O banks requiring 5 V tolerant CMOS inputs.

IC Role / Device Role / Timing Role: Bidirectional voltage domain bridging with matched tPLH/tPHL to prevent data skew in parallel buses.

Use Value: Maintains setup/hold timing integrity across 14-pin bus segments without adding propagation delay variation.

Use Scenario: Generating synchronized reset inversion and enable signals during multi-rail power supply sequencing in industrial HMIs.

IC Role / Device Role / Timing Role: Glue logic for generating complementary control edges with deterministic delay matching.

Use Value: Ensures monotonic power-up behavior by guaranteeing simultaneous assertion of inverted and non-inverted control lines.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
SN74HCT04DR	SOIC-14 package (Case 751A); identical electrical specs but 1.27 mm pitch, wider body (8.75 mm), and higher thermal resistance (θ_JA = 125 °C/W vs. 105 °C/W).	Preferred for through-hole prototyping or where board space allows larger footprint; not suitable for high-density SOEIAJ layouts.	Select SN74HCT04DR only if SOIC-14 is already standardized in your design and thermal derating is acceptable.
74VHC04M	Wider V_CC range (2 V–5.5 V); lower drive (±8 mA); faster propagation (10.5 ns typ.); no LSTTL input compatibility (VIH = 1.5 V min).	Suitable for mixed-voltage 3.3 V/5 V systems but incompatible with legacy TTL source drivers due to input threshold mismatch.	Choose 74VHC04M only when interfacing to 3.3 V logic families and full TTL compatibility is unnecessary.

Compared with SN74HCT04DR and 74VHC04M, the MC74HCT04AFEL uniquely combines SOEIAJ-14 compactness, guaranteed LSTTL input compatibility, and industrial temperature support - making it optimal for space-constrained, legacy-interface-critical applications where drop-in TTL replacement is mandatory.

Availability

MC74HCT04AFEL is available at Aetrix Electronics and suitable for industrial automation, automotive electronics, and embedded control systems requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for MC74HCT04AFEL 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, high-reliability components for automotive, industrial, cloud, and IoT applications.

The MC74HCT04AFEL belongs to the HCT logic family, engineered specifically for seamless interoperability between legacy TTL systems and modern CMOS-based controllers - targeting cost-sensitive, high-volume industrial and automotive subsystems.

FAQ

What is the maximum operating temperature for MC74HCT04AFEL?

The MC74HCT04AFEL is rated for continuous operation from −55 °C to +125 °C, validated per JEDEC JESD22-A108 stress testing. This specification applies across all six inverters simultaneously under full load conditions at V_CC = 5.5 V and I_O = ±25 mA, making MC74HCT04AFEL suitable for under-hood automotive and industrial motor drive applications where ambient temperatures exceed 105 °C.

Does MC74HCT04AFEL support 3.3 V logic inputs?

No, MC74HCT04AFEL does not reliably accept 3.3 V logic inputs as valid HIGH signals. Its minimum input high voltage (VIH) is specified at 2.0 V min over temperature, but this threshold is defined relative to a 4.5–5.5 V V_CC supply and optimized for TTL-level sources (2.4–5.0 V). Applying 3.3 V to an MC74HCT04AFEL input may result in marginal or undefined switching behavior outside guaranteed operating conditions.

Can MC74HCT04AFEL replace a 74LS04 in an existing PCB layout?

Yes - MC74HCT04AFEL is pinout-identical to the 74LS04 and shares the same SOEIAJ-14 footprint (Case 965), allowing direct replacement without PCB modification. Electrical compatibility is maintained via matched LSTTL input thresholds (VIH = 2.0 V, VIL = 0.8 V) and equivalent output drive strength, though MC74HCT04AFEL offers improved noise immunity and lower power consumption versus the bipolar 74LS04.

What is the typical power dissipation of MC74HCT04AFEL at 5 V and 1 MHz?

At V_CC = 5.0 V and f = 1 MHz with CL = 50 pF, the dynamic power dissipation of MC74HCT04AFEL is approximately 1.1 mW per inverter (6.6 mW total), calculated using CPD = 22 pF and the formula PD = CPD × V_CC² × f. Quiescent supply current adds <1 µA per inverter, contributing negligible static power - resulting in total typical dissipation below 7 mW under these conditions.

Is MC74HCT04AFEL compliant with RoHS and REACH regulations?

Yes, MC74HCT04AFEL is Pb-free, halogen-free, and fully compliant with EU RoHS Directive 2011/65/EU and REACH Regulation (EC) No. 1907/2006. The "G" suffix in the part marking (MC74HCT04AFELG) explicitly denotes RoHS-compliant packaging, verified through onsemi's certified material declarations and third-party lab testing per IEC 62321 standards.

MC74HCT04AFEL Specifications

Product attributes: Attribute value

Manufacturer:: onsemi

Series:: 74HCT

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

Packaging:: Bulk

Product Status:: Active

Logic Type:: Inverter

Number of Circuits:: 6

Number of Inputs:: 1

Features:: -

Voltage - Supply:: 4.5V ~ 5.5V

Current - Quiescent (Max):: 1 µA

Current - Output High, Low:: 4mA, 4mA

Input Logic Level - Low:: 0.8V

Input Logic Level - High:: 2V

Max Propagation Delay @ V, Max CL:: 17ns @ 5V, 50pF

Operating Temperature:: -55°C ~ 125°C

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: 14-SOIC

MC74HCT04AFEL FAQ

1.How can I place an order for MC74HCT04AFEL through Aetrix?

Please submit a Request for Quotation (RFQ) for MC74HCT04AFEL 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 MC74HCT04AFEL reliable?

The price and inventory of MC74HCT04AFEL are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MC74HCT04AFEL is usually 5 days.

3.What payment methods are accepted for MC74HCT04AFEL?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MC74HCT04AFEL transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for MC74HCT04AFEL?

MC74HCT04AFEL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your MC74HCT04AFEL 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 MC74HCT04AFEL?

For technical support, including MC74HCT04AFEL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MC74HCT04AFEL requirements.

6.How does Aetrix verify that MC74HCT04AFEL is sourced from the original manufacturer or authorized distributors?

All MC74HCT04AFEL 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 MC74HCT04AFEL meets industry standards.

7.What is the process for return or replacement of MC74HCT04AFEL?

All MC74HCT04AFEL units undergo pre-shipment inspection (PSI). If there is an issue with MC74HCT04AFEL, 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 MC74HCT04AFEL part is unused and in its original packaging.

Return procedure for MC74HCT04AFEL:

1.Submit a request within 90 days.

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

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