Send an Inquiry

To receive a quote for your project, please fill in the following information, and we’ll get back to you promptly.

Submit Inventory List

Please fill in the following information, and we’ll get back to you promptly.

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

onsemi MC74AC08N

Name: MC74AC08N
Brand: onsemi
SKU: MC74AC08N
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

Compare

Part No.:: MC74AC08N

Manufacturer:: onsemi

Category:: Gates and Inverters

Package:: 14-DIP (0.300", 7.62mm)

Datasheet:: MC74AC08N.pdf

Description:: IC GATE AND 4CH 2-INP 14DIP

Quantity:: RFQ Add To RFQ list

Payment:

Shipping:

Inventory:4,166

Please send an inquiry. Send us your inquiry, and we will respond immediately.

Product details

Overview

MC74AC08N from onsemi is a quad 2-input AND gate in high-performance silicon-gate CMOS technology, operating across 2.0–6.0 V supply range with 24 mA output drive capability, propagation delays as low as 5.5 ns at 5.0 V, and TTL-compatible logic thresholds only in the ACT variant - this AC version supports industrial temperature range (−40°C to +85°C) and is used in digital control logic, address decoding, and enable gating in embedded systems.

For engineers reviewing the MC74AC08N datasheet, pinout, applications, or equivalent options, key selection considerations include its 14-pin SOIC package, 5.5 V absolute max supply rating, guaranteed 24 mA sink/source per output, input voltage thresholds referenced to VCC, and compatibility with 3.3 V and 5 V logic families in non-TTL systems.

Technical Context

The MC74AC08N implements four independent AND gates using advanced CMOS process technology, delivering rail-to-rail output swing and low static current (≤40 µA at 5.5 V). Its input structure accepts logic-high thresholds of 2.1 V (min) at VCC = 5.5 V and logic-low thresholds up to 1.65 V (max), enabling interoperability with both 3.3 V and 5 V CMOS systems.

Propagation delay is characterized at CL = 50 pF and specified from 1.0 ns (typ) to 8.5 ns (max) over temperature and voltage, with input rise/fall time sensitivity of 25 ns/V at VCC = 5.5 V. The device exhibits 4.5 pF typical input capacitance and 20 pF power-dissipation capacitance, supporting high-speed switching without excessive dynamic loading.

Key Specifications

Parameter	Value and Actual Design Meaning
Logic Function	Quad 2-input AND gate - provides four independent Boolean AND operations per package.
Supply Voltage Range	2.0 V to 6.0 V - supports mixed-voltage system interfacing and battery-backed operation down to 2 V.
Output Drive	±24 mA - enables direct driving of LEDs, small relays, or fanout to ≥10 standard CMOS loads.
Propagation Delay	Max 8.5 ns at VCC = 5.0 V, CL = 50 pF - ensures timing-critical combinational logic meets sub-10 ns path budgets.
Input Thresholds	VIH(min) = 2.1 V, VIL(max) = 1.65 V at VCC = 5.5 V - defines noise margin and compatibility with 3.3 V outputs.
Operating Temperature	−40°C to +85°C - qualified for industrial-grade environmental reliability without derating.
Package Type	SOIC-14 (Case 751A) - industry-standard surface-mount footprint with 1.27 mm pitch and 8.75 mm body width.

Pinout & Package

MC74AC08N is supplied in a 14-lead SOIC package (Case 751A), with 1.27 mm lead pitch, 8.55–8.75 mm body length, and 3.80–4.00 mm body width. Pin 1 is marked by a notch or beveled corner; the device is Pb-free and RoHS compliant.

Pin/Terminal	Circuit Role	Design Meaning
1, 2, 4, 5, 8, 9, 12, 13	Input (A/B per gate)	Eight total inputs - two per AND gate (Gates 1–4); all CMOS-compatible with high-impedance, low-leakage behavior.
3, 6, 10, 11	Output (Y per gate)	Four buffered AND outputs - each capable of sourcing/sinking 24 mA with rail-aligned VOH/VOL.
7	GND	Ground reference for all logic and power domains - must be low-impedance connection to minimize noise coupling.
14	VCC	Positive supply rail - decoupling capacitor (0.1 µF ceramic) required within 10 mm for stable high-speed operation.

Key Features

Feature	Design Value
High-speed performance	8.5 ns max propagation delay at 5 V enables use in 100+ MHz clock-domain glue logic.
Rail-to-rail output swing	VOH ≥ 4.4 V and VOL ≤ 0.44 V at 24 mA load ensures full logic-level restoration across voltage ranges.
Low quiescent current	ICC ≤ 40 µA at 5.5 V allows integration into power-sensitive applications without significant standby drain.
ESD robustness	HBM > 2000 V and CDM > 1000 V reduce risk of handling damage during assembly and field operation.
Pb-free and RoHS compliant	Meets global environmental directives with G-suffix marking - suitable for consumer and industrial shipments.

Applications

Industrial Control Logic	Microcontroller Peripheral Enable
Use Scenario: Gate enable signals for multiple I/O expanders or sensor interface ICs in PLC backplanes. IC Role / Device Role / Timing Role: Combinational logic element that validates dual-control conditions before asserting peripheral chip-select lines. Use Value: Ensures synchronous activation only when both master clock and ready flag are asserted, preventing spurious writes.	Use Scenario: Conditional enable for UART, SPI, or ADC peripherals based on system mode and power state. IC Role / Device Role / Timing Role: AND gate combining microcontroller GPIO and power-good signal to gate peripheral VCC or reset. Use Value: Eliminates need for software polling by hardwiring safe power-up sequencing with zero latency.
Address Decoding	LED Driver Interface Logic
Use Scenario: Generating chip-select signals for memory-mapped peripherals in 8-bit microprocessor systems. IC Role / Device Role / Timing Role: Combines upper address bits and read/write strobe to generate active-low select pulses. Use Value: Reduces decode latency versus software-based addressing and avoids FPGA resource usage in simple designs.	Use Scenario: Driving multiplexed LED displays where segment and digit enables must be ANDed for pixel activation. IC Role / Device Role / Timing Role: Synchronizes column driver output with row scan timing to prevent ghosting or crosstalk. Use Value: Provides deterministic, glitch-free pixel control without requiring microcontroller bit-banging overhead.

Industrial Control Logic

Microcontroller Peripheral Enable

Use Scenario: Gate enable signals for multiple I/O expanders or sensor interface ICs in PLC backplanes.

IC Role / Device Role / Timing Role: Combinational logic element that validates dual-control conditions before asserting peripheral chip-select lines.

Use Value: Ensures synchronous activation only when both master clock and ready flag are asserted, preventing spurious writes.

Use Scenario: Conditional enable for UART, SPI, or ADC peripherals based on system mode and power state.

IC Role / Device Role / Timing Role: AND gate combining microcontroller GPIO and power-good signal to gate peripheral VCC or reset.

Use Value: Eliminates need for software polling by hardwiring safe power-up sequencing with zero latency.

Address Decoding

LED Driver Interface Logic

Use Scenario: Generating chip-select signals for memory-mapped peripherals in 8-bit microprocessor systems.

IC Role / Device Role / Timing Role: Combines upper address bits and read/write strobe to generate active-low select pulses.

Use Value: Reduces decode latency versus software-based addressing and avoids FPGA resource usage in simple designs.

Use Scenario: Driving multiplexed LED displays where segment and digit enables must be ANDed for pixel activation.

IC Role / Device Role / Timing Role: Synchronizes column driver output with row scan timing to prevent ghosting or crosstalk.

Use Value: Provides deterministic, glitch-free pixel control without requiring microcontroller bit-banging overhead.

Equivalent & Alternatives

The following parts are listed as comparable options for similar quad 2-input AND gate applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
SN74AC08DR	TI part with identical AC logic family specs, same 2.0–6.0 V range and ±24 mA drive, but different input capacitance (6 pF vs 4.5 pF).	Valid for drop-in replacement in most PCB layouts; minor timing variation due to higher Cin may affect marginal 100 MHz paths.	Select when TI-sourced BOM alignment or dual-sourcing strategy is required; verify layout decoupling matches TI's recommended practices.
74VHC08M	ON Semiconductor VHC variant: lower ICC (2 µA typ), faster tPLH/tPHL (5.5 ns max), but narrower VCC range (2.0–5.5 V) and reduced output drive (±8 mA).	Suitable for ultra-low-power or higher-speed sub-5 V systems, but not for 6 V tolerant or high-fanout designs.	Choose for battery-powered devices needing <1 µA standby current or tighter timing margins below 5 V - not for 6 V operation or 24 mA loads.

Compared with SN74AC08DR and 74VHC08M, the MC74AC08N offers the widest supply range (up to 6.0 V), highest guaranteed output drive (±24 mA), and industrial temperature support - making it optimal for ruggedized industrial control and mixed-voltage legacy systems where reliability under voltage stress is critical.

Availability

MC74AC08N is available at Aetrix Electronics and suitable for industrial control logic, microcontroller peripheral enable, and address decoding applications requiring stable component supply, long-term lifecycle assurance, and RoHS-compliant sourcing.

Supply support for MC74AC08N 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, analog, sensing, and connectivity solutions for automotive, industrial, cloud, and IoT markets.

The MC74AC08N belongs to onsemi's 74AC logic family - designed for high-speed, low-power CMOS applications where compatibility with both 3.3 V and 5 V systems and robust industrial temperature operation are essential.

FAQ

What is the maximum supply voltage rating for MC74AC08N?

The MC74AC08N has an absolute maximum DC supply voltage (VCC) rating of +6.5 V, with recommended operation from 2.0 V to 6.0 V. Exceeding 6.5 V risks permanent damage; operation above 6.0 V is outside specification and may degrade timing or output drive consistency. The MC74AC08N is explicitly rated for 6 V tolerance, unlike many 5 V-only logic families.

Does MC74AC08N support TTL-level input compatibility?

No, the MC74AC08N does not support TTL-compatible inputs. That feature is exclusive to the MC74ACT08 variant, which specifies VIH(min) = 2.0 V and VIL(max) = 0.8 V at 5.5 V. The MC74AC08N uses CMOS-compatible thresholds: VIH(min) = 2.1 V and VIL(max) = 1.65 V at VCC = 5.5 V - optimized for 3.3 V/5 V CMOS interfacing, not legacy TTL.

What is the guaranteed output current capability of MC74AC08N?

The MC74AC08N guarantees ±24 mA DC output current per gate output (IOL = 24 mA, IOH = −24 mA) across the full operating temperature range (−40°C to +85°C) and supply voltage (2.0–6.0 V). This is validated per datasheet Section "Recommended Operating Conditions" and enables direct driving of moderate loads without external buffers.

Is MC74AC08N available in packages other than SOIC-14?

Yes, the MC74AC08N specifically refers to the SOIC-14 (Case 751A) variant with D suffix and Pb-free marking (G). Other variants exist - e.g., MC74AC08DTR2G in TSSOP-14 - but MC74AC08N denotes only the SOIC-14 package. The "N" suffix is not used in onsemi's official ordering guide; the correct orderable part is MC74AC08DG or MC74AC08DR2G, both in SOIC-14.

What is the thermal resistance (θJA) of MC74AC08N in SOIC-14 package?

The MC74AC08N in SOIC-14 package has a junction-to-ambient thermal resistance (θJA) of 116°C/W, as specified in the "Maximum Ratings" table. This value assumes standard JEDEC test board conditions (2S2P) and is critical for calculating junction temperature rise under sustained 24 mA output loading - for example, at 50 mW dissipation, ΔTJ = 5.8°C above ambient.

MC74AC08N Specifications

Product attributes: Attribute value

Manufacturer:: onsemi

Series:: 74AC

Package/Case:: 14-DIP (0.300", 7.62mm)

Packaging:: Tube

Product Status:: Obsolete

Logic Type:: AND Gate

Number of Circuits:: 4

Number of Inputs:: 2

Features:: -

Voltage - Supply:: 2V ~ 6V

Current - Quiescent (Max):: 4 µA

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

Input Logic Level - Low:: 0.9V ~ 1.65V

Input Logic Level - High:: 2.1V ~ 3.85V

Max Propagation Delay @ V, Max CL:: 7.5ns @ 5V, 50pF

Operating Temperature:: -40°C ~ 85°C

Grade:: -

Qualification:: -

Mounting Type:: Through Hole

Supplier Device Package:: 14-PDIP

MC74AC08N FAQ

1.How can I place an order for MC74AC08N through Aetrix?

Please submit a Request for Quotation (RFQ) for MC74AC08N 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 MC74AC08N reliable?

The price and inventory of MC74AC08N are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MC74AC08N is usually 5 days.

3.What payment methods are accepted for MC74AC08N?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MC74AC08N transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for MC74AC08N?

MC74AC08N orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your MC74AC08N 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 MC74AC08N?

For technical support, including MC74AC08N datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MC74AC08N requirements.

6.How does Aetrix verify that MC74AC08N is sourced from the original manufacturer or authorized distributors?

All MC74AC08N 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 MC74AC08N meets industry standards.

7.What is the process for return or replacement of MC74AC08N?

All MC74AC08N units undergo pre-shipment inspection (PSI). If there is an issue with MC74AC08N, 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 MC74AC08N part is unused and in its original packaging.

Return procedure for MC74AC08N:

1.Submit a request within 90 days.

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

Tech Hub

2026-09-09 Counterfeit Electronic Components: How to Detect, Authenticate, and Test Suspect Parts

Counterfeit components can hide behind convincing markings and passing basic function tests. This engineering reference covers source traceability, external inspection, X-ray, XRF, electrical testing, …

2026-09-08 Obsolete Electronic Components: How to Source and Evaluate Replacements

A practical engineering and sourcing framework covering lifecycle verification, lifetime-buy calculations, replacement qualification, supplier checks and counterfeit-risk controls.

2026-09-07 TTL vs CMOS Logic Levels: 74HC and 74HCT Compatibility Explained

TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.

2026-09-04 Logic Level Shifter: How to Connect 3.3V and 5V Logic Safely

A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.

2026-09-03 74HC595 vs TPIC6B595: Output Drive, Pinout, Current, and Load Selection

The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…

2026-09-02 74HC595 Pinout, Timing, Output Current, and Applications

The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…

2026-09-01 Latch vs Flip-Flop: Timing, Differences and Design Choices

A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…

2026-08-30 D Latch Circuit: Truth Table, Timing, ICs and Applications

A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …

2026-08-28 SR Latch Explained: NOR and NAND Circuits, Truth Tables, and Applications

An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…

2026-08-27 Latch Circuit: SR and D Latches, Truth Tables, Timing, and Applications

Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…