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

Diodes Incorporated 74AHCT86S14-13

Name: 74AHCT86S14-13
Brand: Diodes Incorporated
SKU: 74AHCT86S14-13
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: 74AHCT86S14-13

Manufacturer:: Diodes Incorporated

Category:: Gates and Inverters

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

Datasheet:: 74AHCT86S14-13.pdf

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

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Product details

Overview

74AHCT86S14-13 from Diodes Incorporated is a quad 2-input XOR gate IC in SO-14 package, operating from 4.5V to 5.5V, delivering 8mA output drive at V_CC = 4.5V, with TTL-compatible inputs and Schmitt-trigger input action for noise immunity - used in PC motherboard logic routing and peripheral interface signal conditioning.

For engineers reviewing the 74AHCT86S14-13 datasheet, 74AHCT86S14-13 pinout, 74AHCT86S14-13 application, or 74AHCT86S14-13 equivalent, key selection criteria include propagation delay (≤9.0 ns @ CL=50pF), input voltage thresholds (VIH ≥2.0V, VIL ≤0.8V), ESD robustness (2kV HBM), latch-up immunity (>250mA), and SO-14 thermal performance (T_J up to +150°C).

Technical Context

This device implements four independent Boolean XOR functions (Y = A ⊕ B) using advanced CMOS technology with push-pull outputs. Each gate features Schmitt-trigger inputs for hysteresis-based noise rejection and TTL-level compatibility without external level-shifting.

It operates within industrial temperature range (–40°C to +125°C) and supports fast switching (t_PD typ. 3.4 ns @ CL=15pF, V_CC=5.5V), with low static current (I_CC ≤40 μA) and controlled dynamic power via C_pd = 18 pF per gate.

Key Specifications

Parameter	Value and Actual Design Meaning
V_CC Range	4.5V to 5.5V - ensures compatibility with standard 5V TTL/CMOS systems and stable operation across supply rail variation.
t_PD Max	9.0 ns @ CL=50pF, V_CC=4.5V - defines maximum logic path delay for timing-critical synchronous interfaces.
I_OH/I_OL	±8 mA @ V_CC=4.5V - supports direct fan-out to 10 LSTTL loads or driving moderate-capacitance PCB traces.
V_IH/V_IL	2.0V / 0.8V - guarantees reliable recognition of TTL logic levels without level translation circuitry.
C_pd	18 pF per gate - enables accurate dynamic power estimation (P_dyn ≈ C_pd × V_CC² × f) in high-frequency clocked logic.
ESD HBM	2 kV - meets IEC 61000-4-2 system-level surge immunity requirements for board-level handling and integration.

Pinout & Package

74AHCT86S14-13 is housed in a 14-pin Small Outline (SO-14) package with 1.27 mm pitch, 8.6 mm body length, and 3.9 mm width - optimized for automated SMT assembly and thermal dissipation in dense logic layouts.

Pin/Terminal	Circuit Role	Design Meaning
1, 4, 9, 12	Input A (Gate 1–4)	Primary XOR operand input; Schmitt-triggered for noise margin and clean edge detection.
2, 5, 10, 13	Input B (Gate 1–4)	Secondary XOR operand input; electrically identical to Input A, fully interchangeable.
3, 6, 8, 11	Output Y (Gate 1–4)	Push-pull CMOS output; sinks or sources up to 8 mA, compatible with TTL and CMOS loads.
7	GND	Logic ground reference; must be low-impedance connection to minimize ground bounce in multi-gate switching.
14	V_CC	Positive supply rail; requires local 100 nF ceramic decoupling within 5 mm of pin for stable high-speed operation.

Key Features

Feature	Design Value
Schmitt-trigger inputs	Provides >0.5V hysteresis per input, enabling reliable operation in noisy environments like PC backplanes or peripheral buses.
TTL-compatible input thresholds	V_IH ≥2.0V and V_IL ≤0.8V allow direct interfacing with legacy 5V TTL logic without level shifters or pull-ups.
Low ICC standby current	Max 40 μA over full temperature range - critical for low-power modes in always-on system management logic.
Robust ESD protection	2 kV HBM, 1 kV CDM, 200 V MM - exceeds JEDEC standards, reducing field failure risk during manufacturing and handling.

Applications

PC Motherboard Logic

Optical Drive Control

Use Scenario: Signal arbitration between SATA controller and BIOS configuration bus during boot sequence.

IC Role / Device Role / Timing Role: XOR gate performing parity check on configuration register bits before firmware handoff.

Use Value: Enables real-time error detection with <9 ns propagation delay, eliminating need for external parity ICs.

Use Scenario: Generating enable strobes for laser diode driver sequencing in DVD-ROM sled control.

IC Role / Device Role / Timing Role: Logic-level combiner converting dual-step motor direction signals into synchronized activation pulses.

Use Value: Delivers precise 8 mA drive capability directly to optocoupler inputs, avoiding discrete transistor buffers.

Network Interface Card (NIC)

Digital TV Set-Top Box

Use Scenario: Glue logic for MAC-to-PHY status handshake synchronization in 10/100 Ethernet PHY interface.

IC Role / Device Role / Timing Role: XOR-based edge detector identifying state transitions in link-status and auto-negotiation signals.

Use Value: Schmitt-trigger inputs reject EMI from adjacent magnetics, ensuring glitch-free status sampling at 25 MHz.

Use Scenario: IR remote decoder front-end combining carrier detect and data valid signals for microcontroller interrupt generation.

IC Role / Device Role / Timing Role: XOR gate acting as pulse-width discriminator for NEC protocol preamble validation.

Use Value: TTL-compatible inputs accept raw photodiode amplifier output, eliminating op-amp comparator stage.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
SN74AHCT86DR	Same logic function, SO-14 package, but TI-specified t_PD max = 7.5 ns @ CL=50pF (vs. Diodes' 9.0 ns); slightly lower I_OL (7.5 mA vs. 8 mA).	Preferred in TI-design ecosystems where footprint and timing margins align with TI reference designs.	Select when sourcing from TI-authorized channels or when tighter propagation delay tolerance is required.
74LVC86AD,118	Lower V_CC range (1.65–3.6V), no Schmitt-trigger inputs, higher speed (t_PD typ. 2.5 ns), but incompatible with 5V TTL signaling.	Suitable only in 3.3V-only systems; requires level-shifting for legacy 5V interface integration.	Choose only for new 3.3V designs where power efficiency and speed outweigh 5V interoperability needs.

Compared with SN74AHCT86DR and 74LVC86AD,118, the 74AHCT86S14-13 uniquely balances 5V TTL compatibility, Schmitt-trigger noise immunity, and SO-14 industrial reliability - making it optimal for mixed-voltage legacy upgrades and cost-sensitive 5V embedded logic.

Availability

74AHCT86S14-13 is available at Aetrix Electronics and suitable for PC motherboard design, optical storage subsystems, and digital TV set-top box production requiring stable component supply and long-term industrial lifecycle support.

Supply support for 74AHCT86S14-13 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, consumer, and industrial markets.

The 74AHCT logic family targets robust 5V system interfacing with enhanced ESD/latch-up immunity and wide temperature operation - designed specifically for legacy-compatible glue logic in space-constrained, thermally demanding applications.

FAQ

Is 74AHCT86S14-13 pin-compatible with older 74LS86 devices?

Yes - it uses identical SO-14 pinout and matches 74LS86 logic function and DC electrical behavior, but offers CMOS power efficiency, higher noise immunity via Schmitt triggers, and extended temperature range (–40°C to +125°C vs. LS's 0°C to +70°C). No redesign is needed for drop-in replacement in most 5V systems.

Can unused inputs be left floating?

No - all unused inputs must be tied to V_CC or GND per Diodes' Recommended Operating Conditions. Floating inputs cause increased ICC, potential oscillation due to Schmitt-trigger metastability, and elevated EMI radiation; this is explicitly prohibited in DS35354 Rev. 2–2, Note 5.

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

It is characterized up to 50 pF (per switching characteristics table), with t_PD guaranteed ≤9.0 ns at that load. Driving >50 pF may increase delay unpredictably and risk output waveform degradation; for heavier loads, add a buffer stage or use lower-C_pd alternatives like 74AHC86.

Does this part support mixed-voltage operation (e.g., 3.3V inputs with 5V V_CC)?

No - inputs are TTL-compatible (VIH ≥2.0V), not 3.3V-tolerant. Applying 3.3V signals directly to inputs while V_CC = 5V is acceptable, but applying >5.5V or negative voltages violates Absolute Maximum Ratings. For true mixed-voltage interfacing, use level translators or 74LVC-series devices.

74AHCT86S14-13 Specifications

Product attributes: Attribute value

Manufacturer:: Diodes Incorporated

Series:: 74AHCT

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

Packaging:: Tape & Reel (TR)

Product Status:: Active

Logic Type:: XOR (Exclusive OR)

Number of Circuits:: 4

Number of Inputs:: 2

Features:: -

Voltage - Supply:: 4.5V ~ 5.5V

Current - Quiescent (Max):: 20 µA

Current - Output High, Low:: 8mA, 8mA

Input Logic Level - Low:: 0.8V

Input Logic Level - High:: 2V

Max Propagation Delay @ V, Max CL:: 10ns @ 5V, 50pF

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

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: 14-SO

74AHCT86S14-13 FAQ

1.How can I place an order for 74AHCT86S14-13 through Aetrix?

Please submit a Request for Quotation (RFQ) for 74AHCT86S14-13 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 74AHCT86S14-13 reliable?

The price and inventory of 74AHCT86S14-13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74AHCT86S14-13 is usually 5 days.

3.What payment methods are accepted for 74AHCT86S14-13?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74AHCT86S14-13 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for 74AHCT86S14-13?

74AHCT86S14-13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your 74AHCT86S14-13 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 74AHCT86S14-13?

For technical support, including 74AHCT86S14-13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74AHCT86S14-13 requirements.

6.How does Aetrix verify that 74AHCT86S14-13 is sourced from the original manufacturer or authorized distributors?

All 74AHCT86S14-13 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 74AHCT86S14-13 meets industry standards.

7.What is the process for return or replacement of 74AHCT86S14-13?

All 74AHCT86S14-13 units undergo pre-shipment inspection (PSI). If there is an issue with 74AHCT86S14-13, 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 74AHCT86S14-13 part is unused and in its original packaging.

Return procedure for 74AHCT86S14-13:

1.Submit a request within 90 days.

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

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