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

Diodes Incorporated 74HCT08S14-13

Name: 74HCT08S14-13
Brand: Diodes Incorporated
SKU: 74HCT08S14-13
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

Compare

Part No.:: 74HCT08S14-13

Manufacturer:: Diodes Incorporated

Category:: Gates and Inverters

Package:: 14-SOIC (0.154", 3.90mm Width)

Datasheet:: 74HCT08S14-13.pdf

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

Quantity:: RFQ Add To RFQ list

Payment:

Shipping:

Inventory:2,339

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

Product details

Overview

74HCT08S14-13 from Diodes Incorporated is a quad 2-input AND gate IC in SO-14 package, operating at 4.5V–5.5V supply, delivering TTL-compatible inputs, 4mA output drive, and 14ns typical propagation delay (CL = 50pF, VCC = 4.5V). It performs Boolean Y = A·B across four independent channels for digital logic control in PC motherboard I/O buffering and peripheral interface coordination.

For engineers reviewing the 74HCT08S14-13 datasheet, 74HCT08S14-13 pinout, 74HCT08S14-13 application, or 74HCT08S14-13 equivalent, key selection criteria include input voltage compatibility with legacy TTL systems, push-pull output sourcing/sinking capability, propagation delay stability over -40°C to +125°C, and SO-14 footprint compatibility with industrial control PCB layouts.

Technical Context

This device implements four independent non-inverting combinational logic gates with Schmitt-trigger inputs for noise immunity and TTL-level input thresholds (VIH ≥ 2.0V, VIL ≤ 0.8V). Each gate drives standard CMOS loads with VOH ≥ 3.70V (I_OH = –4mA) and VOL ≤ 0.4V (I_OL = 4mA) at VCC = 4.5V.

It operates within a recommended supply range of 4.5V–5.5V and supports full industrial temperature range (–40°C to +125°C), with power dissipation capacitance of 22pF per gate and input capacitance of 4pF - enabling stable timing in synchronous bus interfaces and level-shifting logic stages.

Key Specifications

Parameter	Value and Actual Design Meaning
Logic Function	Quad 2-input AND (Y = A·B), non-inverting, independent channels
Supply Voltage	4.5V–5.5V - ensures interoperability with 5V TTL and mixed-voltage digital systems
Propagation Delay	14ns typ (t_PD, CL = 50pF, VCC = 4.5V) - enables reliable operation up to ~35MHz toggle rate
Output Drive	±4mA - sufficient to drive 10 LSTTL loads or fan out to multiple CMOS inputs
Input Compatibility	TTL voltage levels (VIH ≥ 2.0V, VIL ≤ 0.8V) - direct replacement for 74LS08 in legacy designs
ESD Protection	2kV HBM, 1kV CDM, 200V MM - meets industrial handling robustness requirements
Operating Temp	–40°C to +125°C - qualified for under-hood automotive modules and industrial PLC backplanes

Pinout & Package

74HCT08S14-13 is housed in a 14-pin Small Outline (SO-14) package with 1.27mm pitch, 8.6mm × 3.9mm body, and gull-wing leads. Pin 1 is marked by indentation; pin 7 is GND, pin 14 is VCC.

Pin/Terminal	Circuit Role	Design Meaning
1, 4, 9, 12	Input A (Gate 1–4)	First data input per AND gate; Schmitt-triggered for noise rejection
2, 5, 10, 13	Input B (Gate 1–4)	Second data input per AND gate; TTL-compatible threshold detection
3, 6, 8, 11	Output Y (Gate 1–4)	Push-pull CMOS output; sinks or sources up to 4mA at VCC = 4.5V
7	GND	Ground reference for all logic and power domains; must be low-impedance
14	VCC	Positive supply rail; decoupling capacitor required within 10mm of pin

Key Features

Feature	Design Value
Schmitt-trigger inputs	Enables reliable switching in noisy environments (e.g., motor control feedback lines)
TTL input compatibility	Eliminates need for level shifters when interfacing with legacy 74LS/74ALS logic
CMOS power efficiency	ICC ≤ 40μA max (VCC = 6.0V) - reduces static power in always-on logic subsystems
SO-14 and TSSOP-14 options	Allows footprint reuse across cost-sensitive (SO) and space-constrained (TSSOP) designs
Lead-free & RoHS-compliant	Fully compliant with EU Directive 2011/65/EU; no intentionally added lead or halogens

Applications

PC Motherboard I/O Control

Industrial PLC Input Conditioning

Use Scenario: Enabling/disabling parallel port handshaking signals (STROBE, ACK) based on CPU address decode.

IC Role / Device Role: Logic gating of control strobes before driving external peripherals.

Use Value: Ensures clean, glitch-free enable pulses with sub-25ns delay and TTL-compatible thresholds.

Use Scenario: Debouncing and synchronizing mechanical switch inputs from operator panels into microcontroller GPIO.

IC Role / Device Role: Signal conditioning front-end combining switch state with system enable flags.

Use Value: Schmitt-trigger inputs suppress contact bounce; 4mA drive reliably clocks FPGA input registers.

Optical Drive Interface Logic

Digital Audio Equipment Control Bus

Use Scenario: Generating DVD-ROM tray-open inhibit signal only when both safety lock and eject command are asserted.

IC Role / Device Role: Safety interlock logic gate in consumer optical storage subsystems.

Use Value: Dual-input AND function provides fail-safe hardware-level blocking without firmware dependency.

Use Scenario: Routing mute/unmute commands from front-panel buttons to DAC enable lines in AV receivers.

IC Role / Device Role: Command arbitration gate between user interface and audio signal path.

Use Value: Low propagation delay (<36ns max) prevents audible click artifacts during real-time muting.

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
SN74HCT08DR	Same logic function, SO-14, but TI-specified ICC ≤ 20μA (typ), slightly lower t_PD (13ns typ)	Preferred in battery-backed systems where ultra-low quiescent current is critical	Select if design requires <20μA typical supply current at 25°C and TI ecosystem alignment
74VHC08M	Higher VCC range (2V–5.5V), lower VOL (0.1V @ 4mA), but no Schmitt-trigger inputs	Suitable for 3.3V/5V mixed-signal boards but lacks noise immunity on unfiltered inputs	Choose when operating below 4.5V or requiring tighter VOL, but add external RC filtering if noise present

Compared with SN74HCT08DR and 74VHC08M, the 74HCT08S14-13 uniquely combines Schmitt-trigger inputs with guaranteed 4mA drive and industrial temperature support - making it optimal for ruggedized 5V logic interfacing where input noise and long trace runs are present.

Availability

74HCT08S14-13 is available at Aetrix Electronics and suitable for PC motherboard I/O control, industrial PLC input conditioning, and optical drive interface logic requiring stable component supply, long-term lifecycle assurance, and RoHS-compliant sourcing.

Supply support for 74HCT08S14-13 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

Diodes Incorporated is a global manufacturer of discrete semiconductors and analog ICs, specializing in high-reliability, industry-qualified components for computing, industrial, and automotive markets.

The 74HCT logic family targets pin-compatible upgrades of legacy TTL designs, delivering CMOS power efficiency while maintaining TTL input thresholds and output drive - specifically engineered for seamless integration into 5V digital systems undergoing obsolescence mitigation.

FAQ

Can 74HCT08S14-13 operate at 3.3V supply?

No. The 74HCT08S14-13 is specified only for 4.5V–5.5V operation. At 3.3V, VIH minimum (2.0V) becomes marginal relative to VCC, risking unreliable high-level recognition. For 3.3V systems, consider 74VHC08 or 74LVC08 variants instead.

What is the maximum capacitive load this device can drive reliably?

The datasheet specifies switching characteristics up to CL = 50pF. Driving >50pF increases propagation delay nonlinearly and may cause overshoot/ringing. For loads >50pF, add a series resistor (22–47Ω) near the output to dampen reflections and maintain signal integrity.

Are unused inputs required to be terminated?

Yes. Per Recommended Operating Conditions, all unused inputs must be tied to either VCC or GND. Floating inputs cause increased ICC, potential oscillation, and ESD susceptibility due to undefined gate bias - especially critical in high-noise industrial environments.

Does this part support hot-swap or live-insertion?

No. The 74HCT08S14-13 lacks hot-swap protection circuitry such as power-up sequencing control or I_OFF isolation. Applying VCC before GND, or inserting while powered, risks latch-up or permanent damage due to internal parasitic SCR activation.

74HCT08S14-13 Specifications

Product attributes: Attribute value

Manufacturer:: Diodes Incorporated

Series:: 74HCT

Package/Case:: 14-SOIC (0.154", 3.90mm Width)

Packaging:: Tape & Reel (TR)

Product Status:: Active

Logic Type:: AND Gate

Number of Circuits:: 4

Number of Inputs:: 2

Features:: -

Voltage - Supply:: 4.5V ~ 5.5V

Current - Quiescent (Max):: 20 µA

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

Input Logic Level - Low:: 0.8V

Input Logic Level - High:: 2V

Max Propagation Delay @ V, Max CL:: 24ns @ 4.5V, 50pF

Operating Temperature:: -40°C ~ 125°C (TA)

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: 14-SO

74HCT08S14-13 FAQ

1.How can I place an order for 74HCT08S14-13 through Aetrix?

Please submit a Request for Quotation (RFQ) for 74HCT08S14-13 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 74HCT08S14-13 reliable?

The price and inventory of 74HCT08S14-13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74HCT08S14-13 is usually 5 days.

3.What payment methods are accepted for 74HCT08S14-13?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74HCT08S14-13 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for 74HCT08S14-13?

74HCT08S14-13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your 74HCT08S14-13 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 74HCT08S14-13?

For technical support, including 74HCT08S14-13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74HCT08S14-13 requirements.

6.How does Aetrix verify that 74HCT08S14-13 is sourced from the original manufacturer or authorized distributors?

All 74HCT08S14-13 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 74HCT08S14-13 meets industry standards.

7.What is the process for return or replacement of 74HCT08S14-13?

All 74HCT08S14-13 units undergo pre-shipment inspection (PSI). If there is an issue with 74HCT08S14-13, 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 74HCT08S14-13 part is unused and in its original packaging.

Return procedure for 74HCT08S14-13:

1.Submit a request within 90 days.

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

Tech Hub

2026-08-21 What Is an LED Driver? Types, Circuits, Dimming, and Selection

An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…

2026-08-18 Operational Amplifier (Op Amp): Basics, Configurations, Feedback and Applications

Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…

2026-08-14 Jumper Cables: How to Use, Connect and Choose Them Safely

Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…

2026-08-11 LDO Regulator: Dropout Voltage, Noise, PSRR and Power Dissipation

LDO regulator guide covering low dropout voltage, power dissipation, thermal design, PSRR, output noise, capacitor stability, adjustable LDO circuits, LDO vs buck converter and datasheet selection chec…

2026-08-06 Conditional Access Module: CAM, CI/CI+ and DVB Security

Conditional Access Module guide covering CAM meaning, CI/CI+ interface, smart card authorization, DVB security workflow, TV and set-top box compatibility, internal electronics, ESD protection, connecto…

2026-08-03 Electronic Component Obsolescence: EOL Risks, Replacement Options and Last-Time Buy Strategy

Guide to electronic component obsolescence covering EOL risk, PCN/PDN notices, last-time buy planning, replacement options, form-fit-function validation, counterfeit risk and BOM lifecycle management.

2026-07-29 18650 Battery: Voltage, Capacity, Charging and Pack Design

18650 battery guide covering lithium-ion cell basics, 3.6V/3.7V voltage, 4.2V charging, mAh and Wh capacity, protected cells, chargers, BMS, series-parallel packs, holders, welding and sourcing checks.…

2026-07-27 Hall Effect Sensor: Working Principle, Types, Circuits and Applications

Hall effect sensor guide covering working principle, linear and digital sensors, Arduino circuits, current sensing, speed detection, automotive applications, A3144 examples, signal filtering and datash…

2026-07-20 Product Change Notification (PCN) in Electronic Components: Meaning and Supply Chain Response

Product Change Notification guide for electronic components, covering PCN meaning, PCN vs PDN/EOL, common change types, risk levels, form-fit-function review, engineering validation, BOM control, LTB/L…

2026-07-19 Blend Door Actuator: Symptoms, Location, Reset and Replacement Guide

A practical guide to blend door actuators, covering HVAC function, symptoms, location, AC and heater issues, reset and calibration, replacement cost, electrical diagnosis, compatibility checks, and rep…