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

onsemi 74LCX14MTCX_NL

Name: 74LCX14MTCX_NL
Brand: onsemi
SKU: 74LCX14MTCX_NL
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: 74LCX14MTCX_NL

Manufacturer:: onsemi

Category:: Gates and Inverters

Package:: 14-TSSOP (0.173", 4.40mm Width)

Datasheet:: 74LCX14MTCX_NL.pdf

Description:: IC INVERTER 6CH 1-INP 14TSSOP

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Product details

Overview

74LCX14MTCX_NL from ON Semiconductor is a low-voltage hex inverter IC with Schmitt-trigger inputs, 5V-tolerant I/O, and operation from 2.3V to 3.6V V_CC. It delivers 6.5ns max propagation delay at 3.3V, ±24mA output drive, and power-down high-impedance I/O-used in noise-prone signal conditioning, level translation between 2.5V/3.3V and 5V systems, and clock/data waveform sharpening.

For engineers reviewing the 74LCX14MTCX_NL datasheet, pinout, applications, or equivalent options, key selection criteria include Schmitt-trigger hysteresis (0.4–1.2V), 5V-tolerant input voltage range (0–5.5V), guaranteed 2.3–3.6V supply operation, and TSSOP-14 package compatibility with industrial and embedded timing interfaces.

Technical Context

The 74LCX14MTCX_NL implements six independent CMOS inverter gates, each incorporating internal hysteresis via transistor-ratio-defined thresholds-yielding typical positive-going (V_t+) and negative-going (V_t−) input thresholds of 1.2–2.2V and 0.6–1.5V respectively at V_CC = 3.0V. This architecture enables clean edge regeneration of slow or noisy signals without external components.

Its 5V-tolerant inputs operate up to 7V absolute maximum, allowing direct interfacing across mixed-voltage domains (e.g., 3.3V logic driving 5V legacy peripherals). The device supports power-down mode with high-impedance I/O states and meets JEDEC 78 latch-up immunity and >2000V HBM ESD robustness.

Key Specifications

Parameter	Value and Actual Design Meaning
V_CC Range	2.3V–3.6V operating supply; enables compatibility with 2.5V/3.3V systems while maintaining rail-to-rail logic swing
Propagation Delay	6.5ns max at V_CC = 3.3V, CL = 50pF; ensures sub-150MHz signal integrity for digital timing paths
Output Drive	±24mA at V_CC = 3.0V; supports direct fanout to multiple 3.3V CMOS loads or resistive termination
Input Hysteresis	0.4–1.2V typical; rejects noise spikes ≤1.2V and prevents chatter on slow-rising/falling waveforms
Input Voltage Tolerance	0–5.5V DC input range; permits safe connection to 5V buses without level-shifter circuitry
Quiescent Current	10µA max ICC at V_CC = 2.3–3.6V; minimizes standby power in battery-backed or energy-sensitive designs

Pinout & Package

74LCX14MTCX_NL is housed in a 14-lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153 compliant, 4.4mm wide, with 0.65mm lead pitch. Pin 1 marked by notch or dot; exposed pad not connected.

Pin/Terminal	Circuit Role	Design Meaning
1, 3, 5, 9, 11, 13	Inverter Input (A1–A6)	5V-tolerant Schmitt-trigger inputs accepting slow/noisy signals; internally biased for hysteresis
2, 4, 6, 10, 12, 14	Inverter Output (Y1–Y6)	CMOS-compatible outputs with ±24mA sink/source capability; high-impedance when powered down
7	GND	Ground reference for all logic and power domains; must be low-inductance connection
14	V_CC	Primary supply pin (2.3–3.6V); decoupling capacitor required within 5mm for stable AC performance

Key Features

Feature	Design Value
5V-tolerant Schmitt inputs	Enables direct interface to 5V signals without external clamping or level shifters, reducing BOM count
Power-down high-Z I/O	Allows hot-swapping and bus sharing in multi-device systems without contention or leakage paths
Low dynamic power dissipation	CPD = 25pF at 3.3V/10MHz; reduces switching current and heat generation in dense layouts
JEDEC-compliant TSSOP-14	Standard footprint compatible with automated assembly and IPC-7351 land patterns (MTC14)

Applications

Industrial Sensor Interface	Legacy System Level Translation
Use Scenario: Conditioning analog sensor outputs (e.g., thermistor, potentiometer) with slow slew rates into clean digital edges for microcontroller ADC trigger or GPIO capture. IC Role / Device Role / Timing Role: Signal conditioner and edge regenerator; transforms noisy or sluggish analog-derived logic transitions into jitter-free square waves. Use Value: Eliminates need for external RC filters or comparator circuits-reducing component count and PCB area while improving noise immunity.	Use Scenario: Interfacing modern 3.3V FPGA I/O banks to legacy 5V parallel bus peripherals (e.g., EEPROMs, displays, industrial controllers). IC Role / Device Role / Timing Role: Bidirectional voltage translator and waveform sharpener; accepts 5V inputs safely and drives 3.3V-compatible loads. Use Value: Avoids dedicated level-shifter ICs or resistor-divider networks-preserving signal integrity and timing margins across mixed-voltage subsystems.
Microcontroller Clock Input Conditioning	Reset Signal Debouncing
Use Scenario: Cleaning up crystal oscillator or external clock signals feeding MCU clock inputs where trace-induced ringing or EMI causes metastability. IC Role / Device Role / Timing Role: Clock buffer with hysteresis; reshapes marginal clock edges to meet setup/hold requirements of synchronous logic. Use Value: Prevents clock domain instability and system lockup without adding PLL-based jitter cleanup circuitry.	Use Scenario: Debouncing mechanical push-button or switch inputs used for system reset, configuration, or user control in embedded devices. IC Role / Device Role / Timing Role: Digital debouncer with built-in hysteresis; converts bouncy contact closure into single, glitch-free logic transition. Use Value: Replaces RC + Schmitt-trigger discrete solutions-improving reliability and eliminating capacitor aging or temperature drift effects.

Industrial Sensor Interface

Legacy System Level Translation

Use Scenario: Conditioning analog sensor outputs (e.g., thermistor, potentiometer) with slow slew rates into clean digital edges for microcontroller ADC trigger or GPIO capture.

IC Role / Device Role / Timing Role: Signal conditioner and edge regenerator; transforms noisy or sluggish analog-derived logic transitions into jitter-free square waves.

Use Value: Eliminates need for external RC filters or comparator circuits-reducing component count and PCB area while improving noise immunity.

Use Scenario: Interfacing modern 3.3V FPGA I/O banks to legacy 5V parallel bus peripherals (e.g., EEPROMs, displays, industrial controllers).

IC Role / Device Role / Timing Role: Bidirectional voltage translator and waveform sharpener; accepts 5V inputs safely and drives 3.3V-compatible loads.

Use Value: Avoids dedicated level-shifter ICs or resistor-divider networks-preserving signal integrity and timing margins across mixed-voltage subsystems.

Microcontroller Clock Input Conditioning

Reset Signal Debouncing

Use Scenario: Cleaning up crystal oscillator or external clock signals feeding MCU clock inputs where trace-induced ringing or EMI causes metastability.

IC Role / Device Role / Timing Role: Clock buffer with hysteresis; reshapes marginal clock edges to meet setup/hold requirements of synchronous logic.

Use Value: Prevents clock domain instability and system lockup without adding PLL-based jitter cleanup circuitry.

Use Scenario: Debouncing mechanical push-button or switch inputs used for system reset, configuration, or user control in embedded devices.

IC Role / Device Role / Timing Role: Digital debouncer with built-in hysteresis; converts bouncy contact closure into single, glitch-free logic transition.

Use Value: Replaces RC + Schmitt-trigger discrete solutions-improving reliability and eliminating capacitor aging or temperature drift effects.

Equivalent & Alternatives

The following parts are listed as comparable options for similar hex inverter with Schmitt-trigger applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
SN74LVC14APWR	Lower V_CC min (1.65V), no 5V tolerance (max VI = V_CC + 0.5V), 5.5ns tPD at 3.3V	Not suitable for direct 5V input interfacing; requires external clamping if used with 5V sources	Select when full 5V-tolerance is unnecessary and lowest possible propagation delay is prioritized
MC74VHC14DT	Wider V_CC range (2.0–5.5V), 5V-tolerant, but higher ICC (20µA typ) and slower tPD (10.5ns max at 5V)	Compatible with 5V-only systems but less optimal for low-power 3.3V designs requiring fast response	Select when operating at 5V or needing broader supply flexibility, accepting higher static power and latency

Compared with SN74LVC14APWR and MC74VHC14DT, the 74LCX14MTCX_NL uniquely balances 5V-tolerant input safety, sub-7ns speed at 3.3V, and ultra-low quiescent current-making it optimal for mixed-voltage industrial and embedded signal conditioning where reliability and efficiency coexist.

Availability

74LCX14MTCX_NL is available at Aetrix Electronics and suitable for industrial sensor interfaces, legacy system level translation, and microcontroller clock conditioning requiring stable component supply, long-term lifecycle support, and JEDEC-standard TSSOP packaging.

Supply support for 74LCX14MTCX_NL 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

ON Semiconductor is a global semiconductor manufacturer specializing in energy-efficient power management, analog, logic, and sensor solutions for automotive, industrial, and cloud infrastructure markets.

The 74LCX14MTCX_NL belongs to ON Semiconductor's legacy LCX logic family-designed specifically for low-voltage, high-speed, mixed-signal interfacing in space-constrained and noise-sensitive embedded systems.

FAQ

What is the maximum input voltage rating for 74LCX14MTCX_NL?

The 74LCX14MTCX_NL supports DC input voltages from –0.5V to +5.5V under recommended operating conditions, with absolute maximum ratings extending to +7.0V. This 5V-tolerant capability allows direct connection to 5V logic without external protection, making the 74LCX14MTCX_NL ideal for mixed-voltage board designs where 3.3V and 5V domains coexist.

Does 74LCX14MTCX_NL support power-down mode?

Yes, the 74LCX14MTCX_NL features power-down high-impedance inputs and outputs. When V_CC is removed or held below 1.5V, all I/O pins enter a high-impedance state-preventing back-driving, bus contention, or leakage current in hot-swap or partial-power-down configurations. This behavior is explicitly characterized in the datasheet's DC electrical characteristics table.

What is the typical hysteresis voltage of 74LCX14MTCX_NL at 3.0V supply?

At V_CC = 3.0V, the 74LCX14MTCX_NL exhibits a typical hysteresis voltage (V_H) of 0.4–1.2V, calculated as the difference between positive-going (V_t+) and negative-going (V_t−) input thresholds. This internal hysteresis-determined by transistor ratios-is stable over temperature and supply variation, enabling reliable noise rejection in real-world signal paths.

Can 74LCX14MTCX_NL operate at 2.5V supply?

Yes, the 74LCX14MTCX_NL is fully specified for operation at 2.5V (within its 2.3–3.6V V_CC range). At 2.5V, it delivers 7.8ns max propagation delay with CL = 30pF, ±8mA output drive, and maintains full 5V input tolerance-making the 74LCX14MTCX_NL suitable for ultra-low-power portable and battery-operated applications.

Is the 74LCX14MTCX_NL pinout compatible with standard 14-pin logic ICs?

Yes, the 74LCX14MTCX_NL uses industry-standard 14-pin TSSOP pinout (MTC14), matching the functional assignment of 74-series hex inverters: inputs on odd pins (1,3,5,9,11,13), outputs on even pins (2,4,6,10,12,14), V_CC on pin 14, and GND on pin 7. This layout ensures drop-in compatibility with existing PCB footprints designed for JEDEC MO-153-compliant TSSOP logic devices.

74LCX14MTCX_NL Specifications

Product attributes: Attribute value

Manufacturer:: onsemi

Series:: 74LCX

Package/Case:: 14-TSSOP (0.173", 4.40mm 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):: 10 µA

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

Input Logic Level - Low:: 0.4V ~ 0.6V

Input Logic Level - High:: 1.7V ~ 2.2V

Max Propagation Delay @ V, Max CL:: 6.5ns @ 3.3V, 50pF

Operating Temperature:: -40°C ~ 85°C

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: 14-TSSOP

74LCX14MTCX_NL FAQ

1.How can I place an order for 74LCX14MTCX_NL through Aetrix?

Please submit a Request for Quotation (RFQ) for 74LCX14MTCX_NL 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 74LCX14MTCX_NL reliable?

The price and inventory of 74LCX14MTCX_NL are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74LCX14MTCX_NL is usually 5 days.

3.What payment methods are accepted for 74LCX14MTCX_NL?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74LCX14MTCX_NL transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for 74LCX14MTCX_NL?

74LCX14MTCX_NL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your 74LCX14MTCX_NL 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 74LCX14MTCX_NL?

For technical support, including 74LCX14MTCX_NL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74LCX14MTCX_NL requirements.

6.How does Aetrix verify that 74LCX14MTCX_NL is sourced from the original manufacturer or authorized distributors?

All 74LCX14MTCX_NL 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 74LCX14MTCX_NL meets industry standards.

7.What is the process for return or replacement of 74LCX14MTCX_NL?

All 74LCX14MTCX_NL units undergo pre-shipment inspection (PSI). If there is an issue with 74LCX14MTCX_NL, 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 74LCX14MTCX_NL part is unused and in its original packaging.

Return procedure for 74LCX14MTCX_NL:

1.Submit a request within 90 days.

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

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