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

STMicroelectronics 74LVQ14MTR

Name: 74LVQ14MTR
Brand: STMicroelectronics
SKU: 74LVQ14MTR
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

Compare

Part No.:: 74LVQ14MTR

Manufacturer:: STMicroelectronics

Category:: Gates and Inverters

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

Datasheet:: 74LVQ14MTR.pdf

Description:: IC INVERT SCHMITT 6CH 1-INP 14SO

Quantity:: RFQ Add To RFQ list

Payment:

Shipping:

Inventory:4,730

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

Product details

Overview

74LVQ14MTR from STMicroelectronics is a low-voltage CMOS hex Schmitt inverter with hysteresis (V_H = 650 mV typ. at V_CC = 3.0 V), 6 ns typical propagation delay at 3.3 V, symmetrical output drive (±12 mA min), and 2 V to 3.6 V operating range. It enables robust signal conditioning for slow-rising/noisy digital inputs in 3.3 V logic interfaces.

For engineers reviewing the 74LVQ14MTR datasheet, 74LVQ14MTR pinout, 74LVQ14MTR application, or 74LVQ14MTR equivalent, key selection criteria include input hysteresis voltage, transmission-line driving capability (75 Ω), dynamic noise immunity (VOLP = 0.3 V typ.), and PCI bus-level output current (24 mA guaranteed).

Technical Context

The 74LVQ14 implements six independent Schmitt-trigger inverters using sub-micron C2MOS technology, with three-stage internal buffering to enhance noise immunity and output stability. Each channel features asymmetric input thresholds (V_t+ = 2.2 V, V_t− = 0.5 V at V_CC = 3.0 V) yielding 1.7 V total hysteresis window.

Its symmetrical output impedance (|I_OH| = I_OL = 12 mA min) and 75 Ω transmission-line driving capability support clean edge integrity on unterminated lines. Dynamic specifications are guaranteed under CL = 50 pF, RL = 500 Ω, and input rise/fall times of 3 ns.

Key Specifications

Parameter	Value and Actual Design Meaning
V_CC Range	2 V to 3.6 V - supports single-supply 3.3 V systems with ±0.3 V tolerance margin
t_PD (typ)	6 ns at V_CC = 3.3 V - enables timing-critical signal reshaping in high-speed digital interfaces
V_H (hysteresis)	650 mV typ. at V_CC = 3.0 V - rejects up to ~650 mV of input noise without false triggering
I_OH/I_OL	±12 mA min at V_CC = 3.0 V - drives standard 75 Ω coaxial lines or multiple TTL loads directly
ICC (max)	2 µA at T_A = 25°C - enables ultra-low static power in battery-backed or always-on circuits
VOLP (dyn)	0.3 V typ. at V_CC = 3.3 V - limits ground bounce and crosstalk in dense PCB layouts
C_IN	4 pF - minimizes capacitive loading on upstream drivers and preserves signal edge rate

Pinout & Package

74LVQ14MTR is housed in a 14-lead SOIC (Small Outline Integrated Circuit) package with tape-and-reel delivery (MTR suffix). Dimensions conform to JEDEC MS-012, body width 3.9 mm, lead pitch 1.27 mm.

Pin/Terminal	Circuit Role	Design Meaning
1, 3, 5, 9, 11, 13	Input (1A–6A)	Schmitt-triggered logic inputs accepting slow or noisy signals; threshold hysteresis prevents chatter
2, 4, 6, 8, 10, 12	Output (1Y–6Y)	Inverted, buffered outputs with symmetrical sourcing/sinking capability for line driving
7	GND	Dedicated ground reference for all six channels; decoupling capacitor placement critical for noise control
14	V_CC	Single positive supply rail (2–3.6 V); requires local 100 nF ceramic bypass near pin

Key Features

Feature	Design Value
Hex Schmitt inverter architecture	Enables simultaneous conditioning of six asynchronous signals with independent hysteresis per channel
75 Ω transmission-line drive	Directly interfaces with video, clock, or data lines without external termination resistors
2 kV ESD protection	Integrated input/output protection diodes eliminate need for external TVS in board-level ESD zones
PCI bus level output (24 mA)	Meets PCI Local Bus Specification output drive requirements for legacy add-in card designs
Balanced t_PLH/t_PHL	Minimizes duty cycle distortion in clock regeneration or waveform shaping applications

Applications

Industrial Sensor Interface

PCI Bus Signal Conditioning

Use Scenario: Converting slow-rising analog comparator outputs or mechanical switch bounce into clean digital logic levels in PLC I/O modules.

IC Role / Device Role / Timing Role: Schmitt-trigger inverter providing noise-immune signal digitization and edge sharpening before microcontroller sampling.

Use Value: 650 mV hysteresis eliminates false triggers from EMI or contact bounce; 6 ns propagation ensures real-time response within 10 µs control loops.

Use Scenario: Driving and reshaping address/data strobes on legacy PCI add-in cards operating at 33 MHz.

IC Role / Device Role / Timing Role: Level-shifting and fanout buffer ensuring signal integrity across backplane traces with 75 Ω characteristic impedance.

Use Value: Guaranteed 24 mA sink/source meets PCI specification; symmetrical t_PLH/t_PHL preserves clock duty cycle during signal regeneration.

Video Sync Signal Cleanup

Low-Power Microcontroller Peripheral Interface

Use Scenario: Cleaning up composite sync (CSYNC) or horizontal/vertical sync pulses in embedded video capture systems.

IC Role / Device Role / Timing Role: Input hysteresis filters jitter and ringing on long coaxial sync lines; low-noise VOLP reduces timing uncertainty.

Use Value: VOLP = 0.3 V typ. suppresses ground bounce-induced jitter; 75 Ω drive matches video line impedance for minimal reflections.

Use Scenario: Interfacing push-button inputs or open-collector sensor alerts to 3.3 V microcontrollers with limited GPIO current budget.

IC Role / Device Role / Timing Role: Low-quiescent-current (2 µA max) signal conditioner enabling always-on wake-up detection without battery drain.

Use Value: ICC = 2 µA allows multi-year operation on coin-cell batteries; 4 pF C_IN avoids loading weak pull-up networks.

Equivalent & Alternatives

The following parts are listed as comparable options for similar Schmitt inverter applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
SN74LV14APWR	TI part with identical pinout and V_CC range (2–5.5 V), but wider hysteresis (0.9 V min) and higher ICC (10 µA max)	Supports mixed 3.3 V/5 V systems; less suitable for ultra-low-power battery operation	Select when 5 V tolerance or higher noise margin is required; verify VIHD/VILD compatibility with source driver
74LVC14ABQ	Nexperia part in DHVQFN14 package; same hysteresis (0.65 V typ.) but lower t_PD (5.1 ns typ.) and smaller footprint	Preferred for space-constrained PCBs; lacks SOIC option and tape-and-reel packaging for manual assembly	Select for high-density SMT designs; confirm thermal performance under sustained 24 mA load in QFN

Compared with SN74LV14APWR and 74LVC14ABQ, the 74LVQ14MTR offers optimal balance of ultra-low quiescent current (2 µA), SOIC manufacturability, and proven 75 Ω line-driving capability-making it ideal for cost-sensitive industrial and legacy interface designs where power and package form factor are primary constraints.

Availability

74LVQ14MTR is available at Aetrix Electronics and suitable for industrial sensor interfaces, PCI bus signal conditioning, video sync cleanup, and low-power microcontroller peripheral interfacing requiring stable component supply and long-term obsolescence management.

Supply support for 74LVQ14MTR 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

STMicroelectronics is a global semiconductor leader headquartered in Geneva, Switzerland, specializing in automotive, industrial, and power discrete solutions with broad analog and digital portfolio coverage.

The 74LVQ series targets low-voltage, low-noise 3.3 V logic applications, emphasizing ESD robustness, transmission-line compatibility, and latch-up immunity for mission-critical industrial and communications infrastructure.

FAQ

What is the maximum recommended operating temperature for 74LVQ14MTR?

The 74LVQ14MTR is rated for continuous operation from −55°C to +125°C ambient temperature, with full DC and AC specifications guaranteed over the industrial range (−40°C to +85°C). Thermal derating is not required below 125°C, and the device maintains stable hysteresis and propagation delay across this full range.

Can 74LVQ14MTR drive a 50 Ω transmission line?

No - the 74LVQ14MTR is specifically characterized for 75 Ω transmission-line driving (per datasheet Table 7 note 2), with guaranteed performance down to 75 Ω. Driving a 50 Ω load may exceed its ±12 mA output rating under worst-case V_CC and temperature conditions, risking VOL/VOH violations or increased VOLP.

Does 74LVQ14MTR support mixed-voltage interfacing with 5 V logic?

No - its absolute maximum input voltage is V_CC + 0.5 V, and V_CC is limited to 3.6 V max. Direct connection to 5 V logic outputs violates the Absolute Maximum Rating (VI ≤ V_CC + 0.5 V) and risks permanent damage. A level-shifter or resistor divider is required for safe 5 V interface.

Is the 74LVQ14MTR pin-compatible with standard 74HC14 or 74LS14?

Yes - it is pin- and function-compatible with the 74-series 14 (e.g., 74HC14, 74LS14) per datasheet description, sharing identical SO-14 pinout and truth table. However, its lower V_CC range (2–3.6 V), higher hysteresis, and CMOS input structure require verification of source driver compatibility and absence of 5 V-tolerant inputs.

74LVQ14MTR Specifications

Product attributes: Attribute value

Manufacturer:: STMicroelectronics

Series:: 74LVQ

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

Packaging:: Tape & Reel (TR)

Product Status:: Obsolete

Logic Type:: Inverter

Number of Circuits:: 6

Number of Inputs:: 1

Features:: Schmitt Trigger

Voltage - Supply:: 2V ~ 3.6V

Current - Quiescent (Max):: 2 µA

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

Input Logic Level - Low:: 0.5V

Input Logic Level - High:: 2.2V

Max Propagation Delay @ V, Max CL:: 9ns @ 3.3V, 50pF

Operating Temperature:: -55°C ~ 125°C

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: 14-SO

74LVQ14MTR FAQ

1.How can I place an order for 74LVQ14MTR through Aetrix?

Please submit a Request for Quotation (RFQ) for 74LVQ14MTR 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 74LVQ14MTR reliable?

The price and inventory of 74LVQ14MTR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74LVQ14MTR is usually 5 days.

3.What payment methods are accepted for 74LVQ14MTR?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74LVQ14MTR transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for 74LVQ14MTR?

74LVQ14MTR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your 74LVQ14MTR 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 74LVQ14MTR?

For technical support, including 74LVQ14MTR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74LVQ14MTR requirements.

6.How does Aetrix verify that 74LVQ14MTR is sourced from the original manufacturer or authorized distributors?

All 74LVQ14MTR 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 74LVQ14MTR meets industry standards.

7.What is the process for return or replacement of 74LVQ14MTR?

All 74LVQ14MTR units undergo pre-shipment inspection (PSI). If there is an issue with 74LVQ14MTR, 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 74LVQ14MTR part is unused and in its original packaging.

Return procedure for 74LVQ14MTR:

1.Submit a request within 90 days.

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

Tech Hub

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…

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…