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 > Buffers, Drivers, Receivers, Transceivers

Diodes Incorporated 74LVC125AS14-13

Name: 74LVC125AS14-13
Brand: Diodes Incorporated
SKU: 74LVC125AS14-13
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

Compare

Part No.:: 74LVC125AS14-13

Manufacturer:: Diodes Incorporated

Category:: Buffers, Drivers, Receivers, Transceivers

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

Datasheet:: 74LVC125AS14-13.pdf

Description:: IC BUFFER NON-INVERT 5.5V 14SO

Quantity:: RFQ Add To RFQ list

Payment:

Shipping:

Inventory:29,134

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

Product details

Overview

74LVC125AS14-13 from Diodes Incorporated is a quadruple 3-state non-inverting buffer with independent active-low output enable (OE) control per channel, operating from 1.65V to 5.5V supply. It provides voltage-level translation between 1.8V/2.5V/3.3V and 5V domains, sinks up to 24mA at V_CC = 3.3V, and supports partial power-down via I_OFF protection. It is used in PC motherboard I/O buffering, notebook peripheral isolation, and mixed-voltage signal routing.

For engineers reviewing the 74LVC125AS14-13 datasheet, 74LVC125AS14-13 pinout, 74LVC125AS14-13 application, or 74LVC125AS14-13 equivalent, key selection criteria include 3-state timing (t_pd ≤ 4.6 ns @ 3.3V), I_OFF-enabled power-down leakage (<20 µA), 5.5V-tolerant inputs, SO-14 package thermal resistance (θ_JA TBD), and compliance with JESD22 ESD ratings (2 kV HBM).

Technical Context

This device implements four independent CMOS buffer channels, each with dedicated active-low OE input enabling high-impedance output state. Its I_OFF circuitry actively disables outputs during V_CC = 0V conditions, preventing back-current flow in partial-power-down systems. Input thresholds are V_IH ≥ 0.65×V_CC and V_IL ≤ 0.35×V_CC, ensuring robust noise margin across supply voltages.

Propagation delay is specified from A to Y (t_pd = 2.5 ns typ @ 3.3V), while enable/disable times (t_en/t_dis) are 2.4 ns typ @ 3.3V. The logic diagram confirms non-inverting topology with no internal feedback or latching - purely combinational 3-state buffering.

Key Specifications

Parameter	Value and Actual Design Meaning
Supply Voltage Range	1.65V to 5.5V - enables direct interface between 1.8V, 2.5V, 3.3V, and 5V logic domains without level shifters.
Input Voltage Tolerance	Up to 5.5V - allows 5V signals to safely drive inputs even when V_CC = 1.8V or 2.5V, enabling bidirectional voltage translation.
Output Drive Strength	24mA sink @ V_CC = 3.3V - sufficient to drive standard TTL loads or multiple CMOS inputs in fan-out-critical paths.
Propagation Delay	2.5 ns typical @ 3.3V - supports >200 MHz data rates in point-to-point or low-fanout buffered lines.
I_OFF Leakage	<20 µA @ V_CC = 0V - prevents current backflow into powered-down sections, critical for hot-swap and power-gated subsystems.
ESD Robustness	2 kV HBM, 1 kV CDM - exceeds JEDEC requirements for board-level handling and system integration reliability.
Operating Temperature	–40°C to +125°C - qualified for industrial and extended-temperature embedded applications, not automotive AEC-Q100.

Pinout & Package

74LVC125AS14-13 is supplied in SO-14 (Small Outline) package: 14-pin, 3.9 mm body width, 1.27 mm pitch, gull-wing leads, RoHS-compliant lead-free finish.

Pin/Terminal	Circuit Role	Design Meaning
1, 4, 10, 13	1OE, 2OE, 3OE, 4OE	Active-low output enable - drives corresponding Y output to high-Z when logic HIGH; enables buffer when LOW.
2, 5, 9, 12	1A, 2A, 3A, 4A	Non-inverting data inputs - pass through to Y outputs when OE is asserted (LOW).
3, 6, 8, 11	1Y, 2Y, 3Y, 4Y	Buffered non-inverting outputs - reflect A inputs when OE is LOW; high-impedance when OE is HIGH.
7	GND	Ground reference for all logic and power domains - must be low-impedance connection to system ground plane.
14	V_CC	Primary supply rail - powers internal logic and output drivers; accepts 1.65V–5.5V with full functionality.

Key Features

Feature	Design Value
Wide Supply Range	1.65V–5.5V operation enables single-bom support across 1.8V, 2.5V, 3.3V, and 5V system rails.
5.5V-Tolerant Inputs	Accepts 5V signals regardless of V_CC level - eliminates need for external level translators in mixed-voltage I/O interfaces.
I_OFF Protection	Automatically disables outputs during V_CC = 0V - prevents damaging back-current in hot-plug or power-gated subsystems.
Low Dynamic Power	ICC ≤ 40 µA max @ 3.6V - reduces quiescent power in always-on control paths and battery-backed logic.
High-Speed Switching	t_pd ≤ 4.6 ns @ 3.3V - meets timing budgets for DDR clock forwarding, PCIe sideband, and USB 2.0 control signaling.

Applications

PC Motherboard I/O Buffering

Notebook Peripheral Isolation

Use Scenario: Routing SMBus, LPC, or GPIO signals between chipset and Super I/O or EC on x86 platforms.

IC Role / Device Role / Timing Role: Non-inverting 3-state buffer providing signal integrity, fan-out extension, and voltage domain bridging (e.g., 3.3V chipset ↔ 1.8V sensor hub).

Use Value: Enables clean signal propagation with <4.6 ns delay and eliminates contention via independent OE control per channel.

Use Scenario: Isolating eMMC, SD card, or USB OTG control lines during sleep mode in ultrabook designs.

IC Role / Device Role / Timing Role: Output-enable gated buffer that disconnects peripherals from host logic during S3/S4 states using platform PMIC-controlled OE signals.

Use Value: I_OFF leakage <20 µA ensures zero current path when V_CC is removed, meeting ACPI power budget targets.

Industrial PLC Backplane Interface

Mixed-Voltage Sensor Hub Interconnect

Use Scenario: Level-shifting and buffering discrete I/O status signals between 24V field-side optocouplers and 3.3V microcontroller logic.

IC Role / Device Role / Timing Role: Voltage translator and bus driver - inputs accept 5.5V from level-shifted opto outputs; outputs drive MCU GPIOs at 3.3V.

Use Value: Eliminates external resistive dividers or dedicated translators, reducing BOM count and PCB area by 30% per channel.

Use Scenario: Aggregating I²C or SPI signals from 1.8V MEMS sensors, 2.5V ADCs, and 3.3V MCUs in compact IoT edge nodes.

IC Role / Device Role / Timing Role: Multi-rail signal conditioner - buffers and isolates sensor data lines while maintaining timing integrity across voltage boundaries.

Use Value: 5.5V-tolerant inputs allow direct connection to 5V pull-ups; t_pd ≤ 4.6 ns preserves I²C timing margins up to 400 kHz.

Equivalent & Alternatives

The following parts are listed as comparable options for similar 3-state buffer applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
SN74LVC125APWR (TI)	Identical logic function, same SO-14/TSSOP-14 footprint, but rated only to +85°C ambient (vs. +125°C for Diodes part).	Limited to commercial/industrial ambient environments; unsuitable for extended-temperature industrial enclosures.	Select if operating temperature stays below 85°C and TI sourcing preference applies.
74LVC125AD,118 (Nexperia)	Same electrical specs and pinout; differs in ESD rating (2 kV HBM vs. Nexperia's 4 kV HBM) and I_OFF leakage (max 10 µA vs. Diodes' 20 µA).	Better ESD robustness but tighter I_OFF spec - advantageous in high-noise factory-floor deployments.	Prefer for harsh EMI environments where HBM margin is prioritized over worst-case power-down leakage.

Compared with SN74LVC125APWR and 74LVC125AD,118, the 74LVC125AS14-13 offers superior high-temperature operation (+125°C), balanced I_OFF/ESD trade-off, and Diodes' documented support for extended-life industrial programs - making it optimal for thermally constrained or long-lifecycle embedded systems.

Availability

74LVC125AS14-13 is available at Aetrix Electronics and suitable for PC motherboard design, notebook peripheral isolation, and industrial PLC backplane interfacing requiring stable component supply, long-term lifecycle assurance, and RoHS-compliant sourcing.

Supply support for 74LVC125AS14-13 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, energy-efficient components for industrial, computing, and consumer markets.

The 74LVC logic family targets low-voltage, mixed-rail digital interfacing - designed specifically for voltage translation, bus buffering, and power-aware signal isolation in space- and power-constrained embedded systems.

FAQ

Can 74LVC125AS14-13 operate with V_CC = 1.65V while accepting 5V inputs?

Yes. The device is fully specified for 1.65V–5.5V V_CC, and its inputs tolerate up to 5.5V regardless of supply voltage. At V_CC = 1.65V, VIH is guaranteed ≥1.07V and VIL ≤0.58V, ensuring reliable switching with 5V TTL-compatible signals without external clamping.

What is the maximum output current per channel at V_CC = 2.5V?

At V_CC = 2.5V, the device sinks up to 16mA (IOH = –16mA) and sources up to 16mA (IOL = +16mA) while maintaining VOH ≥ 2.0V and VOL ≤ 0.4V. This is verified in the Electrical Characteristics table under "VOH/VOL" test conditions for 2.3V–2.7V V_CC.

Does 74LVC125AS14-13 support hot insertion?

Yes - its I_OFF circuitry actively disables outputs when V_CC = 0V, limiting back-current to <20 µA. This prevents damage to live backplanes during card insertion/removal, satisfying IEC 61000-4-2 Level 4 ESD immunity requirements when combined with proper PCB layout.

Is this part qualified to AEC-Q100 for automotive use?

No. The 74LVC125AS14-13 is not AEC-Q100 qualified. Diodes offers automotive-grade variants (e.g., 74LVC125AQ) with PPAP documentation, IATF 16949 manufacturing, and extended temperature screening - but this SO-14 tape-and-reel variant is intended for industrial and commercial applications only.

74LVC125AS14-13 Specifications

Product attributes: Attribute value

Manufacturer:: Diodes Incorporated

Series:: 74LVC

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

Packaging:: Tape & Reel (TR)

Product Status:: Active

Logic Type:: Buffer, Non-Inverting

Number of Elements:: 4

Number of Bits per Element:: 1

Input Type:: -

Output Type:: 3-State

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

Voltage - Supply:: 1.65V ~ 5.5V

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

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: 14-SO

74LVC125AS14-13 FAQ

1.How can I place an order for 74LVC125AS14-13 through Aetrix?

Please submit a Request for Quotation (RFQ) for 74LVC125AS14-13 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 74LVC125AS14-13 reliable?

The price and inventory of 74LVC125AS14-13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74LVC125AS14-13 is usually 5 days.

3.What payment methods are accepted for 74LVC125AS14-13?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74LVC125AS14-13 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for 74LVC125AS14-13?

74LVC125AS14-13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your 74LVC125AS14-13 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 74LVC125AS14-13?

For technical support, including 74LVC125AS14-13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74LVC125AS14-13 requirements.

6.How does Aetrix verify that 74LVC125AS14-13 is sourced from the original manufacturer or authorized distributors?

All 74LVC125AS14-13 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 74LVC125AS14-13 meets industry standards.

7.What is the process for return or replacement of 74LVC125AS14-13?

All 74LVC125AS14-13 units undergo pre-shipment inspection (PSI). If there is an issue with 74LVC125AS14-13, 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 74LVC125AS14-13 part is unused and in its original packaging.

Return procedure for 74LVC125AS14-13:

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…