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

Nexperia USA Inc. 74AHC1G14GV,125

Name: 74AHC1G14GV,125
Brand: Nexperia USA Inc.
SKU: 74AHC1G14GV,125
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: 74AHC1G14GV,125

Manufacturer:: Nexperia USA Inc.

Category:: Gates and Inverters

Package:: SC-74A, SOT-753

Datasheet:: 74AHC1G14GV,125.pdf

Description:: IC INVERT SCHMITT 1CH 1INP SC74A

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Product details

Overview

74AHC1G14GV,125 from Nexperia is a single-channel CMOS inverting Schmitt trigger with overvoltage-tolerant inputs (up to 5.5 V), operating across 2.0 V–5.5 V supply range, delivering 1.65 V hysteresis at 5.5 V V_CC, and specified for -40 °C to +125 °C industrial temperature range. It enables robust signal conditioning in mixed-voltage sensor interfaces and noise-prone digital input stages.

For engineers reviewing the 74AHC1G14GV,125 datasheet, 74AHC1G14GV,125 pinout, 74AHC1G14GV,125 application, or 74AHC1G14GV,125 equivalent, key selection criteria include Schmitt-trigger hysteresis voltage (V_H), input threshold asymmetry (V_T+/V_T−), propagation delay under 50 pF load, overvoltage tolerance, and SC-74A (SOT753) package thermal derating behavior.

Technical Context

This device implements a single-stage CMOS inverter with dual-threshold Schmitt-trigger input circuitry, providing positive-going (V_T+) and negative-going (V_T−) switching thresholds that define hysteresis (V_H = V_T+ − V_T−). At V_CC = 5.5 V, V_T+ = 3.85 V and V_T− = 1.65 V yield V_H = 2.2 V - enabling reliable noise rejection on slow-rising signals.

Its overvoltage-tolerant inputs allow direct interfacing with 5 V logic while powered from 3.3 V or 2.5 V rails, eliminating level-shifter components. The output stage features symmetrical drive capability (±8 mA at V_CC = 4.5 V), supporting fan-out into multiple CMOS loads without signal degradation.

Key Specifications

Parameter	Value and Actual Design Meaning
V_CC Range	2.0 V to 5.5 V - supports direct operation from 2.5 V, 3.3 V, and 5 V rails without external regulators
V_H (Hysteresis)	2.2 V at V_CC = 5.5 V - rejects up to ±1.1 V of common-mode noise on input signal
t_pd (CL = 50 pF)	13.5 ns max at V_CC = 5.5 V - ensures sub-15 ns timing margin for 30 MHz clock edge detection
I_O Drive	±8 mA at V_CC = 4.5 V - drives 10+ standard CMOS inputs or 2x 74LVC-series gates
Input Voltage Tolerance	Up to 5.5 V independent of V_CC - enables safe 5 V signal injection into 3.3 V systems
Operating Temperature	-40 °C to +125 °C - qualified for under-hood automotive ECUs and industrial motor controllers
P_tot (Tamb ≤ 85 °C)	250 mW - derates linearly at 3.8 mW/K above 85 °C in SC-74A package

Pinout & Package

SC-74A (SOT753) plastic surface-mounted package: 5-terminal, 1.3 mm × 1.1 mm body, 0.65 mm pitch, 0.5 mm height, side-wettable flanks not applicable - optimized for space-constrained PCB layouts and automated optical inspection.

Pin/Terminal	Circuit Role	Design Meaning
n.c.	No-connect terminal	Internally unconnected; must remain floating or grounded per layout best practice - no routing required
A	Inverting Schmitt-trigger input	Accepts slow-rising/falling waveforms; triggers at V_T+ (3.85 V @ 5.5 V) and releases at V_T− (1.65 V @ 5.5 V)
GND	Ground reference	0 V return path for all internal logic and output current; requires low-inductance connection to PCB ground plane
Y	Inverted Schmitt-trigger output	CMOS-compatible rail-to-rail output; sinks or sources up to 8 mA while maintaining VOL ≤ 0.55 V / VOH ≥ 3.70 V
V_CC	Positive supply	Power rail for internal logic and output driver; bypass capacitor (100 nF) required within 3 mm of pin

Key Features

Feature	Design Value
Overvoltage-tolerant inputs	Withstands 5.5 V input regardless of V_CC (2.0–5.5 V), enabling mixed-voltage translation without external clamps
Symmetrical output impedance	Matched pull-up/pull-down strength ensures consistent rise/fall times and reduced duty-cycle distortion
High noise immunity	2.2 V hysteresis at full V_CC suppresses EMI-induced glitches on long traces or unshielded sensors
Extended temperature range	Full functionality from -40 °C to +125 °C supports deployment in engine control units and industrial PLC I/O modules
Low static power	ICC ≤ 40 μA at V_CC = 5.5 V and -40 °C to +125 °C - suitable for always-on battery-backed monitoring circuits

Applications

Waveform Shaping

Astable Multivibrator

Use Scenario: Converting noisy analog sensor outputs (e.g., thermistor voltage ramps) into clean digital edges for microcontroller ADC triggering.

IC Role / Device Role / Timing Role: Input signal conditioner that converts slow, drifting analog transitions into monotonic, glitch-free square waves.

Use Value: Eliminates need for external RC filtering and comparator hysteresis resistors - reduces BOM count by two passive components per channel.

Use Scenario: Generating precise clock signals in low-power IoT node sleep/wake cycles using only one IC and two passives.

IC Role / Device Role / Timing Role: Core oscillator element in relaxation oscillator topology with external R and C.

Use Value: Delivers stable frequency (K-factor = 0.8 @ 5 V) with <1% drift over temperature - replaces dedicated oscillator ICs in cost-sensitive designs.

Monostable Multivibrator

Industrial Digital Input Interface

Use Scenario: Debouncing mechanical switch closures in factory HMI panels where contact bounce exceeds 10 ms.

IC Role / Device Role / Timing Role: Edge-triggered pulse stretcher using feedback RC network to generate fixed-duration output pulses.

Use Value: Guarantees minimum 50 ms clean output pulse width independent of switch bounce duration - meets IEC 61000-4-2 immunity requirements.

Use Scenario: Accepting 24 V field signals via optocoupler output into 3.3 V microcontroller GPIOs in PLC backplanes.

IC Role / Device Role / Timing Role: Level-translating Schmitt buffer isolating noisy 24 V industrial bus from sensitive MCU logic.

Use Value: Overvoltage-tolerant A-pin accepts 5.5 V logic from opto-output while V_CC = 3.3 V - removes need for discrete Zener clamp or level-shifter IC.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
74AHCT1G14GV	TTL-compatible input thresholds (V_T+ = 2.0 V @ 5.5 V); identical SC-74A package and pinout	Designed for legacy 5 V TTL systems interfacing with 3.3 V logic; lower noise margin than AHC variant	Select when interfacing with older 5 V microcontrollers or legacy peripherals requiring TTL-level recognition
SN74LVC1G14DBVR	Narrower V_CC range (1.65–5.5 V); lower hysteresis (1.2 V @ 5.5 V); SOT-23-5 package	Optimized for ultra-low-voltage portable devices; less noise immunity but faster t_pd (4.5 ns typ)	Prefer for battery-powered wearables needing sub-2 V operation and minimal propagation delay

Compared with 74AHCT1G14GV, the 74AHC1G14GV offers higher noise immunity (2.2 V vs. 1.4 V hysteresis) and wider supply flexibility (2.0 V min), while SN74LVC1G14DBVR trades hysteresis for lower-voltage support and speed - making each optimal for distinct voltage-domain and noise-environment constraints.

Availability

74AHC1G14GV,125 is available at Aetrix Electronics and suitable for industrial motor control, automotive body electronics, and medical diagnostic equipment requiring stable component supply across extended temperature and mixed-voltage environments.

Supply support for 74AHC1G14GV,125 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

Nexperia is a global semiconductor expert focused on high-volume, high-reliability logic, discrete, and MOSFET solutions for automotive, industrial, and consumer markets.

The 74AHC logic family delivers high-speed, low-power CMOS performance with robust ESD protection and wide supply range - engineered specifically for noise-immune signal conditioning in harsh electromagnetic environments.

FAQ

Can 74AHC1G14GV,125 be used with a 2.0 V supply?

Yes - it is fully specified down to 2.0 V V_CC. At this voltage, V_T+ = 1.9 V and V_T− = 0.1 V (typ), yielding 1.8 V hysteresis. Output drive drops to ±4 mA, but remains sufficient for driving high-impedance CMOS inputs. Propagation delay increases to 16.5 ns (max) at CL = 50 pF.

What is the maximum capacitive load for stable oscillation in relaxation mode?

The datasheet specifies reliable relaxation oscillator operation with C ≤ 100 nF and R ≤ 1 MΩ. For C > 47 nF, ensure PCB trace capacitance is included in total CL; exceeding 100 nF risks marginal startup or frequency instability due to reduced loop gain at low frequencies.

Is pin 1 of the SC-74A package marked with a dot or notch?

Per Nexperia marking specification, pin 1 is located at the lower-left corner below the marking code "A14", identified by a molded indentation (not a dot) on the package edge - visible under 10× magnification. Orientation matches JEDEC MO-178 standard for SC-74A.

Does the n.c. pin require PCB pad connection?

No - the n.c. pin is internally unconnected and must remain electrically floating. Do not solder it to ground or V_CC; leave the pad unconnected or remove it entirely in layout to prevent unintended coupling or solder bridging during reflow.

74AHC1G14GV,125 Specifications

Product attributes: Attribute value

Manufacturer:: Nexperia USA Inc.

Series:: 74AHC

Package/Case:: SC-74A, SOT-753

Packaging:: Tape & Reel (TR)

Product Status:: Active

Logic Type:: Inverter

Number of Circuits:: 1

Number of Inputs:: 1

Features:: Schmitt Trigger

Voltage - Supply:: 2V ~ 5.5V

Current - Quiescent (Max):: 1 µA

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

Input Logic Level - Low:: 0.9V ~ 1.65V

Input Logic Level - High:: 2.2V ~ 3.85V

Max Propagation Delay @ V, Max CL:: 10.6ns @ 5V, 50pF

Operating Temperature:: -40°C ~ 125°C

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: SC-74A

74AHC1G14GV,125 FAQ

1.How can I place an order for 74AHC1G14GV,125 through Aetrix?

Please submit a Request for Quotation (RFQ) for 74AHC1G14GV,125 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 74AHC1G14GV,125 reliable?

The price and inventory of 74AHC1G14GV,125 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74AHC1G14GV,125 is usually 5 days.

3.What payment methods are accepted for 74AHC1G14GV,125?

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4.How is shipping managed for 74AHC1G14GV,125?

74AHC1G14GV,125 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your 74AHC1G14GV,125 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 74AHC1G14GV,125?

For technical support, including 74AHC1G14GV,125 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74AHC1G14GV,125 requirements.

6.How does Aetrix verify that 74AHC1G14GV,125 is sourced from the original manufacturer or authorized distributors?

All 74AHC1G14GV,125 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 74AHC1G14GV,125 meets industry standards.

7.What is the process for return or replacement of 74AHC1G14GV,125?

All 74AHC1G14GV,125 units undergo pre-shipment inspection (PSI). If there is an issue with 74AHC1G14GV,125, 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 74AHC1G14GV,125 part is unused and in its original packaging.

Return procedure for 74AHC1G14GV,125:

1.Submit a request within 90 days.

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

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