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

onsemi MC74ACT86MELG

Name: MC74ACT86MELG
Brand: onsemi
SKU: MC74ACT86MELG
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: MC74ACT86MELG

Manufacturer:: onsemi

Category:: Gates and Inverters

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

Datasheet:: MC74ACT86MELG.pdf

Description:: IC GATE XOR 4CH 2-INP SOEIAJ-14

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Product details

Overview

MC74ACT86MELG from onsemi is a quad 2-input exclusive-OR (XOR) gate in SOIC-14 package, designed for high-speed digital logic applications requiring TTL-compatible inputs and CMOS outputs. It operates at 4.5 V to 5.5 V supply, delivers ±24 mA output drive, exhibits 7.0–10.5 ns propagation delay (tPHL/tPLH), and supports industrial temperature range (−40°C to +85°C). It is used in arithmetic logic units, error detection circuits, and phase comparators.

For engineers reviewing the MC74ACT86MELG datasheet, pinout, applications, or equivalent options, key selection criteria include its 5 V TTL-compatible input thresholds (VIH = 2.0 V, VIL = 0.8 V), guaranteed 24 mA sink/source capability, low 0.36 V VOL at 24 mA, and SOIC-14 Pb-free packaging compliant with JESD22-A114A ESD standards.

Technical Context

The MC74ACT86MELG implements four independent XOR logic functions using high-performance silicon-gate CMOS technology. Its TTL-compatible input stage accepts standard 5 V logic levels while driving CMOS loads with rail-to-rail swing and fast edge rates.

It features symmetrical propagation delays (tPLH/tPHL ≤ 10.5 ns at 5.0 V, CL = 50 pF), low dynamic power dissipation (CPD = 35 pF), and robust latch-up immunity (>100 mA per I/O at 85°C). Input thresholds are fixed at VIH = 2.0 V and VIL = 0.8 V across the full operating voltage range (4.5–5.5 V).

Key Specifications

Parameter	Value and Actual Design Meaning
Logic Function	Quad 2-input XOR gate - enables bit-wise parity generation, comparator logic, and controlled inversion.
Supply Voltage Range	4.5 V to 5.5 V - ensures compatibility with standard 5 V TTL/CMOS systems without level-shifting.
Output Drive	±24 mA - supports direct interfacing with multiple 74-series loads or moderate-capacitance PCB traces.
Propagation Delay	1.0–10.5 ns (tPHL/tPLH at 5 V, CL = 50 pF) - enables use in sub-100 MHz synchronous logic paths.
Input Thresholds	VIH = 2.0 V, VIL = 0.8 V - guarantees reliable recognition of legacy TTL logic levels under all temperature conditions.
Operating Temperature	−40°C to +85°C - qualified for industrial-grade embedded control and instrumentation environments.
ESD Rating	>2000 V HBM - provides robust handling margin during board assembly and field service.

Pinout & Package

MC74ACT86MELG is housed in a 14-lead SOIC package (Case 751A, Pb-free), with 1.27 mm pitch, 8.55–8.75 mm body width, and 1.35–1.75 mm height. Pin 1 is marked by a beveled corner or dot; pin 7 is GND and pin 14 is VCC.

Pin/Terminal	Circuit Role	Design Meaning
1, 2, 4, 5, 8, 9, 11, 12	Input A/B for XOR gates 1–4	Dedicated logic inputs - each pair (e.g., pins 1&2, 4&5, etc.) feeds one XOR function; no shared or multiplexed inputs.
3, 6, 10, 13	XOR Output Y1–Y4	Active-high CMOS outputs - swing from near-GND to near-VCC with <0.44 V VOL at 24 mA sink.
7	GND	Ground reference for all logic and power domains - must be low-impedance connection to minimize noise coupling.
14	VCC	Primary power supply - decoupling capacitor (0.1 µF ceramic) required within 5 mm of this pin for stable operation.

Key Features

Feature	Design Value
TTL-compatible inputs	VIH = 2.0 V / VIL = 0.8 V at 4.5–5.5 V - eliminates need for external level translators when interfacing with legacy 74LS or microcontroller GPIOs.
High-output drive	±24 mA - drives up to 10 LSTTL loads or 20 pF capacitive load at full speed without signal degradation.
Low propagation skew	tPHL − tPLH ≤ 1.0 ns (typical at 5 V) - ensures deterministic timing in parallel data paths like bus parity checkers.
Pb-free SOIC-14 package	RoHS-compliant, JEDEC-standard footprint - enables drop-in replacement in existing 74-series designs and automated SMT assembly.
Industrial temperature rating	−40°C to +85°C operation - validated for use in motor drives, PLC I/O modules, and outdoor telecom equipment.

Applications

Parity Generator / Checker	Phase Comparator
Use Scenario: Detecting odd/even number of high bits across 4-bit data buses in memory controllers or UART interfaces. IC Role / Device Role / Timing Role: Performs real-time bitwise XOR aggregation across parallel inputs to generate single parity bit. Use Value: Enables hardware-level error detection with zero latency penalty - critical for safety-critical firmware boot validation.	Use Scenario: Comparing clock edges between two 5 V oscillator signals in PLL lock-detection circuits. IC Role / Device Role / Timing Role: Outputs high only when inputs differ - generates pulse-width-modulated error signal proportional to phase misalignment. Use Value: Provides analog-like phase difference representation using only digital logic - avoids need for dedicated phase detector ICs.
Controlled Inverter	Arithmetic Logic Unit (ALU) Segment
Use Scenario: Selectively inverting data lines in microcontroller peripheral interfaces based on a mode control signal. IC Role / Device Role / Timing Role: Uses one input as data and the other as enable/invert control - output = A ⊕ B. Use Value: Reduces component count versus discrete inverter + AND/OR gate solutions - saves PCB area and routing complexity.	Use Scenario: Implementing half-adder logic (sum = A ⊕ B) in custom 4-bit ALU designs for educational or low-power MCU co-processors. IC Role / Device Role / Timing Role: Delivers sum bit with minimal delay (≤10.5 ns), supporting synchronous 10 MHz ALU throughput. Use Value: Provides predictable, temperature-stable XOR behavior - essential for deterministic arithmetic pipeline timing.

Parity Generator / Checker

Phase Comparator

Use Scenario: Detecting odd/even number of high bits across 4-bit data buses in memory controllers or UART interfaces.

IC Role / Device Role / Timing Role: Performs real-time bitwise XOR aggregation across parallel inputs to generate single parity bit.

Use Value: Enables hardware-level error detection with zero latency penalty - critical for safety-critical firmware boot validation.

Use Scenario: Comparing clock edges between two 5 V oscillator signals in PLL lock-detection circuits.

IC Role / Device Role / Timing Role: Outputs high only when inputs differ - generates pulse-width-modulated error signal proportional to phase misalignment.

Use Value: Provides analog-like phase difference representation using only digital logic - avoids need for dedicated phase detector ICs.

Controlled Inverter

Arithmetic Logic Unit (ALU) Segment

Use Scenario: Selectively inverting data lines in microcontroller peripheral interfaces based on a mode control signal.

IC Role / Device Role / Timing Role: Uses one input as data and the other as enable/invert control - output = A ⊕ B.

Use Value: Reduces component count versus discrete inverter + AND/OR gate solutions - saves PCB area and routing complexity.

Use Scenario: Implementing half-adder logic (sum = A ⊕ B) in custom 4-bit ALU designs for educational or low-power MCU co-processors.

IC Role / Device Role / Timing Role: Delivers sum bit with minimal delay (≤10.5 ns), supporting synchronous 10 MHz ALU throughput.

Use Value: Provides predictable, temperature-stable XOR behavior - essential for deterministic arithmetic pipeline timing.

Equivalent & Alternatives

The following parts are listed as comparable options for similar quad XOR gate applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
SN74ACT86DR	Identical logic function, same 4.5–5.5 V range and ±24 mA drive, but TI-marked SOIC-14 with different marking layout and MSL level (3 vs. 1).	Same functional role in 5 V logic systems; differs in moisture sensitivity handling - requires bake prior to reflow if stored >168 hrs.	Select SN74ACT86DR only if TI's qualification documentation or supply chain alignment is required; otherwise MC74ACT86MELG offers superior MSL-1 handling.
74VHC86M	Higher VCC range (2–5.5 V), lower drive (±8 mA), faster max speed (7.5 ns), but non-TTL-compatible inputs (VIH = 3.5 V min at 4.5 V).	Not suitable for direct TTL interface; requires level-shifting or redesign if replacing legacy 74LS-based systems.	Choose 74VHC86M only for new 3.3 V–5 V mixed-supply designs where low power and speed outweigh TTL compatibility needs.

Compared with SN74ACT86DR and 74VHC86M, MC74ACT86MELG uniquely combines TTL-compatible inputs, MSL-1 packaging, and industrial temperature support - making it optimal for retrofitting legacy 5 V systems without layout or qualification changes.

Availability

MC74ACT86MELG is available at Aetrix Electronics and suitable for industrial control systems, embedded instrumentation, and communications infrastructure requiring stable component supply, long-term lifecycle assurance, and RoHS-compliant sourcing.

Supply support for MC74ACT86MELG 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 sensor solutions for automotive, industrial, and cloud infrastructure markets.

The MC74ACT86MELG belongs to onsemi's 74ACT logic family, engineered specifically for high-speed, TTL-compatible digital interfacing in industrial and communications equipment where reliability and consistent timing are critical.

FAQ

What logic family does MC74ACT86MELG belong to, and how does it differ from standard 74AC devices?

The MC74ACT86MELG belongs to the 74ACT (Advanced CMOS TTL-compatible) family. Unlike 74AC devices, which have CMOS input thresholds (VIH ≈ 3.5 V at 5 V), MC74ACT86MELG uses TTL-compatible inputs (VIH = 2.0 V, VIL = 0.8 V), enabling direct interface with legacy 74LS and microcontroller GPIOs without level shifters. This distinction is confirmed in the datasheet's DC Characteristics tables for 74ACT vs. 74AC sections.

Does MC74ACT86MELG support operation at 3.3 V supply?

No, MC74ACT86MELG is not rated for 3.3 V operation. Its recommended supply range is strictly 4.5 V to 5.5 V, as specified in the Recommended Operating Conditions table. Attempting 3.3 V operation results in undefined input thresholds and degraded output drive - the device may fail to recognize logic highs or deliver sufficient current. For 3.3 V systems, consider 74LVC86 or 74AHC86 instead.

What is the maximum capacitive load MC74ACT86MELG can drive while maintaining specified propagation delay?

MC74ACT86MELG is characterized for CL = 50 pF in AC specifications, with tPLH/tPHL ≤ 10.5 ns at 5.0 V. Driving loads beyond 50 pF increases delay nonlinearly - e.g., at 100 pF, typical delay exceeds 15 ns. For reliable timing closure in high-speed designs, keep total net capacitance ≤ 50 pF via controlled trace length and minimized stubs, as verified in the AC Characteristics section of the datasheet.

Is MC74ACT86MELG pin-compatible with older 74LS86 or 74F86 devices?

Yes, MC74ACT86MELG uses the industry-standard 14-pin SOIC footprint and identical pinout (per Figure 1 and ordering table), making it a direct physical and functional replacement for 74LS86 and 74F86 in 5 V systems. However, due to higher output drive (±24 mA vs. ±8 mA for LS), ensure downstream loads do not exceed their input current ratings when upgrading.

What packaging and environmental compliance does MC74ACT86MELG meet?

MC74ACT86MELG is supplied in a Pb-free SOIC-14 package (Case 751A), compliant with RoHS Directive 2011/65/EU and JESD22-A114A (HBM ESD >2000 V). Its MSL Level 1 rating means it can be stored indefinitely at ≤30°C/60% RH without baking - confirmed in the Maximum Ratings table and ordering information section of the datasheet.

MC74ACT86MELG Specifications

Product attributes: Attribute value

Manufacturer:: onsemi

Series:: 74ACT

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

Packaging:: Tape & Reel (TR)

Product Status:: Obsolete

Logic Type:: XOR (Exclusive OR)

Number of Circuits:: 4

Number of Inputs:: 2

Features:: -

Voltage - Supply:: 4.5V ~ 5.5V

Current - Quiescent (Max):: 4 µA

Current - Output High, Low:: 24mA, 24mA

Input Logic Level - Low:: 0.8V

Input Logic Level - High:: 2V

Max Propagation Delay @ V, Max CL:: 9.5ns @ 5V, 50pF

Operating Temperature:: -40°C ~ 85°C

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: SOEIAJ-14

MC74ACT86MELG FAQ

1.How can I place an order for MC74ACT86MELG through Aetrix?

Please submit a Request for Quotation (RFQ) for MC74ACT86MELG 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 MC74ACT86MELG reliable?

The price and inventory of MC74ACT86MELG are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MC74ACT86MELG is usually 5 days.

3.What payment methods are accepted for MC74ACT86MELG?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MC74ACT86MELG transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for MC74ACT86MELG?

MC74ACT86MELG orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your MC74ACT86MELG 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 MC74ACT86MELG?

For technical support, including MC74ACT86MELG datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MC74ACT86MELG requirements.

6.How does Aetrix verify that MC74ACT86MELG is sourced from the original manufacturer or authorized distributors?

All MC74ACT86MELG 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 MC74ACT86MELG meets industry standards.

7.What is the process for return or replacement of MC74ACT86MELG?

All MC74ACT86MELG units undergo pre-shipment inspection (PSI). If there is an issue with MC74ACT86MELG, 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 MC74ACT86MELG part is unused and in its original packaging.

Return procedure for MC74ACT86MELG:

1.Submit a request within 90 days.

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

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