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

onsemi MC74HC08AFR2

Name: MC74HC08AFR2
Brand: onsemi
SKU: MC74HC08AFR2
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: MC74HC08AFR2

Manufacturer:: onsemi

Category:: Gates and Inverters

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

Datasheet:: MC74HC08AFR2.pdf

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

Quantity:: RFQ Add To RFQ list

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Inventory:16,000

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Product details

Overview

MC74HC08AFR2 from onsemi is a quad 2-input AND gate in high-performance silicon-gate CMOS technology, pinout-compatible with LS08 TTL logic. It operates from 2.0 V to 6.0 V, delivers ±25 mA output drive per pin, and supports industrial temperature range (–55 °C to +125 °C). It is used in digital logic interfacing, level translation, and control signal conditioning in embedded controllers and instrumentation.

For engineers reviewing the MC74HC08AFR2 datasheet, pinout, applications, or equivalent options, this page provides verified functional identity, SOIC-14 package mapping, propagation delay (13 ns @ 6 V), input/output voltage compatibility, and validated alternatives for logic-level AND gate replacement in mixed-voltage systems.

Technical Context

The MC74HC08AFR2 implements four independent AND gates using CMOS transistor pairs with rail-to-rail input voltage tolerance (0 to V_CC) and guaranteed switching at V_CC = 2.0 V. Its inputs accept standard CMOS and LSTTL outputs (with pullups), and outputs directly interface to CMOS, NMOS, and TTL loads.

It features low static current (≤40 µA @ 6 V, 125 °C), high noise immunity (>40% V_CC noise margin), and JEDEC Std. 7A compliance. The device contains 24 FETs (6 equivalent gates) and includes ESD protection circuitry - unused inputs must be tied to V_CC or GND.

Key Specifications

Parameter	Value and Actual Design Meaning
Logic Function	Quad 2-input AND gate (Y = A·B per channel)
Supply Voltage Range	2.0 V to 6.0 V - enables interoperability across 3.3 V and 5 V logic domains
Propagation Delay	13 ns max @ V_CC = 6.0 V - ensures timing predictability in synchronous control paths
Output Drive	±25 mA per pin - sufficient to drive 10 LSTTL loads without buffering
Input Leakage Current	±1.0 µA max @ 125 °C - preserves signal integrity in high-impedance node applications
Operating Temperature	–55 °C to +125 °C - qualified for automotive under-hood and industrial control environments
Input Capacitance	10 pF max - minimizes capacitive loading on upstream drivers and clock trees

Pinout & Package

MC74HC08AFR2 is supplied in a 14-lead SOIC package (Case 751A), 3.9 mm wide, with standard 1.27 mm pitch. Pin 1 is marked by a notch or beveled corner; Pin 7 = GND, Pin 14 = V_CC.

Pin/Terminal	Circuit Role	Design Meaning
1, 4, 9, 12	Input A1–A4	First input of each AND gate; accepts 0–V_CC logic levels
2, 5, 10, 13	Input B1–B4	Second input of each AND gate; compatible with CMOS/LSTTL outputs
3, 6, 8, 11	Output Y1–Y4	AND result per channel; rail-to-rail CMOS output swing
7	GND	Ground reference for all inputs/outputs and internal logic
14	V_CC	Positive supply rail; must be decoupled locally with 0.1 µF ceramic capacitor

Key Features

Feature	Design Value
Pb-free, RoHS-compliant packaging	Meets environmental compliance requirements for industrial and automotive production
High noise immunity	CMOS architecture provides >40% V_CC noise margin - reduces false triggering in noisy environments
LSTTL load compatibility	Drives up to 10 LSTTL loads directly - eliminates need for buffer stages in legacy system upgrades
Wide V_CC operating range	2.0–6.0 V operation supports battery-powered, 3.3 V microcontroller, and 5 V peripheral interfaces
ESD protection circuitry	Integrated protection guards against human-body-model (HBM) discharges up to ±2 kV

Applications

Industrial PLC I/O Conditioning	Automotive Body Control Module
Use Scenario: Isolating and enabling sensor status signals before feeding into a microcontroller's interrupt input. IC Role / Device Role / Timing Role: Logic-level AND gate performing enable-gated signal pass-through with sub-15 ns propagation. Use Value: Ensures only valid, synchronized sensor events trigger interrupts - prevents spurious wake-up in low-power modes.	Use Scenario: Combining door-open and key-in-ignition signals to activate interior lighting only when both conditions are met. IC Role / Device Role / Timing Role: Discrete logic element implementing safety-critical dual-condition activation logic. Use Value: Eliminates software polling overhead and guarantees deterministic response within 13 ns at 6 V supply.
Medical Instrument Power Sequencing	Test Equipment Signal Gating
Use Scenario: Enabling high-voltage analog front-end power rails only after digital control logic confirms safe startup state. IC Role / Device Role / Timing Role: Hardware-enforced AND gate in critical power-enable path with fail-safe behavior. Use Value: Prevents hazardous voltage application during firmware initialization - meets IEC 61010-1 interlock requirements.	Use Scenario: Gating DUT test signals based on pattern generator enable and system ready status. IC Role / Device Role / Timing Role: High-speed logic gate synchronizing stimulus delivery with system readiness flags. Use Value: Reduces test cycle jitter by replacing software-controlled gating with deterministic 13 ns hardware logic.

Industrial PLC I/O Conditioning

Automotive Body Control Module

Use Scenario: Isolating and enabling sensor status signals before feeding into a microcontroller's interrupt input.

IC Role / Device Role / Timing Role: Logic-level AND gate performing enable-gated signal pass-through with sub-15 ns propagation.

Use Value: Ensures only valid, synchronized sensor events trigger interrupts - prevents spurious wake-up in low-power modes.

Use Scenario: Combining door-open and key-in-ignition signals to activate interior lighting only when both conditions are met.

IC Role / Device Role / Timing Role: Discrete logic element implementing safety-critical dual-condition activation logic.

Use Value: Eliminates software polling overhead and guarantees deterministic response within 13 ns at 6 V supply.

Medical Instrument Power Sequencing

Test Equipment Signal Gating

Use Scenario: Enabling high-voltage analog front-end power rails only after digital control logic confirms safe startup state.

IC Role / Device Role / Timing Role: Hardware-enforced AND gate in critical power-enable path with fail-safe behavior.

Use Value: Prevents hazardous voltage application during firmware initialization - meets IEC 61010-1 interlock requirements.

Use Scenario: Gating DUT test signals based on pattern generator enable and system ready status.

IC Role / Device Role / Timing Role: High-speed logic gate synchronizing stimulus delivery with system readiness flags.

Use Value: Reduces test cycle jitter by replacing software-controlled gating with deterministic 13 ns hardware logic.

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
SN74HC08DR	TI part; identical logic function and SOIC-14 pinout; slightly higher ICC (50 µA max @ 125 °C vs. 40 µA)	Same industrial temperature range; not AEC-Q100 qualified	Select for cost-sensitive non-automotive designs where automotive qualification is unnecessary
74HC08D,653	Nexperia part; same pinout and V_CC range; lower max propagation delay (11 ns @ 6 V) but rated only to +85 °C	Limited to commercial/industrial ambient; lacks extended temperature support	Choose when speed is prioritized over extended temperature operation and automotive compliance

Compared with SN74HC08DR and 74HC08D,653, the MC74HC08AFR2 offers superior thermal robustness (–55 °C to +125 °C), AEC-Q100 qualification, and tighter quiescent current - making it the preferred choice for automotive body electronics and harsh-environment industrial controls.

Availability

MC74HC08AFR2 is available at Aetrix Electronics and suitable for industrial automation, automotive body control, and medical instrument design requiring stable component supply, long-term lifecycle assurance, and RoHS-compliant sourcing.

Supply support for MC74HC08AFR2 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 focused on energy-efficient electronics, delivering silicon solutions for automotive, industrial, cloud, and IoT applications.

The MC74HC08AFR2 belongs to the 74HC logic family - designed for high-speed, low-power CMOS logic interfacing in mixed-voltage systems where reliability, noise immunity, and wide supply range are critical.

FAQ

What is the pinout compatibility of MC74HC08AFR2 with legacy TTL devices?

The MC74HC08AFR2 has identical pinout to the 74LS08 TTL quad AND gate, allowing direct drop-in replacement in existing PCB layouts. All 14 pins - including V_CC (Pin 14), GND (Pin 7), and the four independent AND gate inputs/outputs - match LS08 assignments exactly. This enables seamless upgrade from TTL to CMOS logic without board redesign.

Does MC74HC08AFR2 support 3.3 V logic systems?

Yes, MC74HC08AFR2 fully supports 3.3 V operation: its recommended V_CC range is 2.0 V to 6.0 V, and all DC and AC specifications - including VIH (≥2.1 V), VOL (≤0.26 V), and t_PLH (≤19 ns) - are guaranteed at 3.0 V and 3.3 V. It interfaces directly with 3.3 V microcontrollers and FPGAs without level shifters.

What is the maximum output current per pin for MC74HC08AFR2?

The MC74HC08AFR2 specifies ±25 mA DC output current per pin (I_OUT), measured under steady-state conditions. This rating allows driving up to 10 LSTTL loads or small LEDs (with series resistor) directly. Exceeding this value risks latch-up or parametric shift; sustained operation above ±20 mA requires thermal derating per package power dissipation limits.

Is MC74HC08AFR2 qualified for automotive applications?

Yes, MC74HC08AFR2 is AEC-Q100 qualified and PPAP capable when ordered with the NLV prefix (e.g., NLV74HC08ADR2G). While the base MC74HC08AFR2 shares the same die and process, the NLV variant undergoes additional automotive-specific testing and traceability controls. For production automotive use, specify the NLV-part number to ensure full qualification compliance.

How should unused inputs on MC74HC08AFR2 be handled?

Unused inputs on MC74HC08AFR2 must be tied to a defined logic level - either V_CC or GND - to prevent floating nodes that cause excessive current draw, oscillation, or ESD susceptibility. Leaving inputs unconnected violates the device's absolute maximum ratings and may degrade reliability. Unused outputs may be left open-circuit.

MC74HC08AFR2 Specifications

Product attributes: Attribute value

Manufacturer:: onsemi

Series:: 74HC

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

Packaging:: Bulk

Product Status:: Active

Logic Type:: AND Gate

Number of Circuits:: 4

Number of Inputs:: 2

Features:: -

Voltage - Supply:: 2V ~ 6V

Current - Quiescent (Max):: 1 µA

Current - Output High, Low:: 5.2mA, 5.2mA

Input Logic Level - Low:: 0.5V ~ 1.8V

Input Logic Level - High:: 1.5V ~ 4.2V

Max Propagation Delay @ V, Max CL:: 13ns @ 6V, 50pF

Operating Temperature:: -55°C ~ 125°C

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: 14-SOIC

MC74HC08AFR2 FAQ

1.How can I place an order for MC74HC08AFR2 through Aetrix?

Please submit a Request for Quotation (RFQ) for MC74HC08AFR2 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 MC74HC08AFR2 reliable?

The price and inventory of MC74HC08AFR2 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MC74HC08AFR2 is usually 5 days.

3.What payment methods are accepted for MC74HC08AFR2?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MC74HC08AFR2 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for MC74HC08AFR2?

MC74HC08AFR2 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your MC74HC08AFR2 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 MC74HC08AFR2?

For technical support, including MC74HC08AFR2 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MC74HC08AFR2 requirements.

6.How does Aetrix verify that MC74HC08AFR2 is sourced from the original manufacturer or authorized distributors?

All MC74HC08AFR2 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 MC74HC08AFR2 meets industry standards.

7.What is the process for return or replacement of MC74HC08AFR2?

All MC74HC08AFR2 units undergo pre-shipment inspection (PSI). If there is an issue with MC74HC08AFR2, 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 MC74HC08AFR2 part is unused and in its original packaging.

Return procedure for MC74HC08AFR2:

1.Submit a request within 90 days.

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

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