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

Nexperia USA Inc. 74AHCT1G14GV,125

Name: 74AHCT1G14GV,125
Brand: Nexperia USA Inc.
SKU: 74AHCT1G14GV,125
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: 74AHCT1G14GV,125

Manufacturer:: Nexperia USA Inc.

Category:: Gates and Inverters

Package:: SC-74A, SOT-753

Datasheet:: 74AHCT1G14GV,125.pdf

Description:: IC INVERT SCHMITT 1CH 1INP SC74A

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Product details

Overview

74AHCT1G14GV,125 from Nexperia is a single-channel CMOS inverting Schmitt trigger with TTL-compatible input thresholds (VT+ = 2.0 V, VT− = 0.6 V at VCC = 5.5 V), 5-pin SC-74A (SOT753) package, −40 °C to +125 °C operating range, and 4.1 ns typical propagation delay (CL = 15 pF, VCC = 5 V). It enables robust signal conditioning in noisy industrial sensor interfaces and digital timing circuits.

For engineers reviewing the 74AHCT1G14GV,125 datasheet, 74AHCT1G14GV,125 pinout, 74AHCT1G14GV,125 application, or 74AHCT1G14GV,125 equivalent, this page delivers verified functional identity, validated pin roles, confirmed Schmitt-trigger hysteresis (0.4–1.6 V), real-world noise immunity metrics, and precise substitution guidance for mixed-voltage logic translation.

Technical Context

This device implements a single inverting Schmitt trigger gate with asymmetric TTL-level input switching thresholds (VT+ = 2.0 V, VT− = 0.6 V at VCC = 5.5 V), enabling reliable waveform shaping of slow-rising or noisy signals. Its overvoltage-tolerant inputs accept up to 5.5 V regardless of supply voltage, supporting level translation between 3.3 V and 5 V domains.

It operates across 4.5 V to 5.5 V, delivers symmetrical output drive (±8 mA), and maintains stable hysteresis (VH = 1.4 V typical at VCC = 5.5 V) over full temperature range. The SC-74A package supports high-density PCB layouts while meeting JESD78 Class II Level A latch-up immunity (>100 mA).

Key Specifications

Parameter	Value and Actual Design Meaning
Logic Function	Inverting Schmitt trigger - converts slow/noisy analog-like inputs into clean digital outputs with defined hysteresis
Supply Voltage Range	4.5 V to 5.5 V - ensures compatibility with standard 5 V TTL systems and margin against rail droop
Input Thresholds (VCC = 5.5 V)	VT+ = 2.0 V, VT− = 0.6 V - provides 1.4 V hysteresis for noise rejection in industrial environments
Propagation Delay (CL = 15 pF)	4.1 ns typ - enables use in sub-100 MHz clock conditioning and pulse edge sharpening
Output Drive Strength	±8 mA - sufficient to directly drive multiple 74-series TTL inputs or small capacitive loads
Operating Temperature	−40 °C to +125 °C - qualified for under-hood automotive modules and industrial control cabinets
Input Overvoltage Tolerance	5.5 V absolute max - allows safe interfacing with 5 V signals even when VCC = 4.5 V

Pinout & Package

74AHCT1G14GV,125 uses the SC-74A (SOT753) plastic surface-mounted package: 5-terminal, 1.1 × 0.9 mm body, 0.65 mm lead pitch, no thermal pad, pin 1 marked by lower-left corner notch below marking "C14".

Pin/Terminal	Circuit Role	Design Meaning
1	Not connected (n.c.)	Internally unconnected - must be left floating or tied to GND; no electrical function
2	Data input (A)	Schmitt-trigger input accepting 0–5.5 V; TTL-compatible thresholds enable direct 5 V logic interfacing
3	Ground (GND)	Reference node for all I/O and supply - requires low-impedance PCB connection to minimize noise coupling
4	Data output (Y)	Inverted, buffered output with rail-to-rail swing and ±8 mA drive capability
5	Supply voltage (VCC)	Positive supply rail (4.5–5.5 V); decoupling capacitor (100 nF) required within 3 mm of this pin

Key Features

Feature	Design Value
TTL input switching levels	VT+ = 2.0 V, VT− = 0.6 V at VCC = 5.5 V - ensures interoperability with legacy 5 V microcontrollers and logic families
Overvoltage-tolerant inputs	Withstand 5.5 V regardless of VCC - eliminates need for external level-shifting resistors in mixed-supply systems
Hysteresis voltage (VH)	0.4–1.6 V over temperature - guarantees noise margins > 400 mV in motor-drive feedback or sensor signal paths
High noise immunity	CMOS input structure + Schmitt trigger + 1.4 V typical hysteresis - rejects EMI-induced glitches on long PCB traces
Latch-up immunity	Exceeds 100 mA per JESD78 Class II Level A - prevents destructive latch-up during transient overvoltage events

Applications

Waveform Shaping

Pulse Conditioning

Use Scenario: Converting slow-rising encoder quadrature signals or thermistor-derived analog waveforms into clean square waves for MCU capture timers.

IC Role / Device Role / Timing Role: Inverting Schmitt trigger performing threshold-based signal regeneration with hysteresis to suppress contact bounce and EMI.

Use Value: Eliminates false edge detection in position sensing; enables reliable 10 kHz quadrature decoding without software debouncing.

Use Scenario: Sharpening degraded clock edges from long cables or high-capacitance PCB traces before feeding FPGA clock buffers.

IC Role / Device Role / Timing Role: Single-gate inverter restoring rise/fall times and amplitude integrity via hysteresis-enhanced switching.

Use Value: Reduces jitter accumulation in clock distribution trees; supports stable operation up to 80 MHz system clocks.

Astable Multivibrator

Monostable Pulse Generator

Use Scenario: Building compact relaxation oscillators for LED blinkers or watchdog timeout sources using only one IC, resistor, and capacitor.

IC Role / Device Role / Timing Role: Core inverting Schmitt element providing positive feedback path with RC timing network.

Use Value: Achieves frequency stability of ±5% over −40 °C to +125 °C using K-factor curves from datasheet Fig. 16.

Use Scenario: Generating fixed-duration pulses from pushbutton presses or interrupt signals in industrial HMI panels.

IC Role / Device Role / Timing Role: Triggered inverter stage converting momentary input into controlled-width output pulse via RC network.

Use Value: Delivers consistent 10–100 ms pulse widths independent of switch bounce; eliminates need for microcontroller GPIO timing.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
74AHC1G14GV,125	CMOS input thresholds (VT+ = 4.4 V @ VCC = 4.5 V); wider 2–5.5 V supply range	Better suited for 3.3 V systems with 5 V tolerant inputs; lower ICC at 3.3 V	Select when interfacing with mixed 3.3/5 V logic or requiring ultra-low static current (<1 μA)
SN74LVC1G14DBVR	TTL thresholds like AHCT but 1.65–5.5 V supply; higher drive (±32 mA); different pinout (SOT-23-5)	Supports 1.8 V logic; requires PCB redesign due to non-pin-compatible footprint	Choose for 1.8 V–3.3 V designs needing stronger drive or tighter propagation delay variation (±0.3 ns)

Compared with 74AHC1G14GV,125 and SN74LVC1G14DBVR, the 74AHCT1G14GV,125 offers optimal balance of TTL compatibility, 5 V system integration, and SC-74A space efficiency-making it the preferred choice for cost-sensitive, high-volume 5 V industrial controls where pin-for-pin replacement isn't required.

Availability

74AHCT1G14GV,125 is available at Aetrix Electronics and suitable for industrial sensor interfaces, automotive body control modules, and programmable logic timing circuits requiring stable component supply across extended temperature ranges.

Supply support for 74AHCT1G14GV,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 74AHCT series targets robust 5 V TTL-compatible logic translation and signal conditioning in harsh environments, emphasizing latch-up immunity, wide temperature operation, and input overvoltage tolerance.

FAQ

What is the maximum input voltage the 74AHCT1G14GV,125 can tolerate?

The 74AHCT1G14GV,125 supports absolute maximum input voltage of +7.0 V per IEC 60134, but its overvoltage-tolerant inputs are rated to 5.5 V under normal operation - meaning it safely accepts 5 V signals even when powered at minimum 4.5 V, eliminating external clamping components in mixed-rail systems.

Can this device operate at 3.3 V supply?

No - the 74AHCT1G14GV,125 is specified only for 4.5 V to 5.5 V supply. For 3.3 V operation, use the pin-compatible 74AHC1G14GV,125 (CMOS thresholds, 2–5.5 V range) or SN74LVC1G14DBVR (1.65–5.5 V, higher drive), both requiring validation of input threshold compatibility with driving sources.

How does the Schmitt trigger hysteresis improve noise immunity?

Hysteresis creates separate rising (VT+) and falling (VT−) thresholds - here 2.0 V and 0.6 V at VCC = 5.5 V - so noise spikes <1.4 V cannot cause unintended output toggling. This prevents false triggering on slow edges or EMI-coupled signals in motor drives, sensor lines, or long cable runs.

Is pin 1 internally connected or truly unused?

Pin 1 is explicitly designated "n.c." (not connected) in the official Nexperia datasheet Section 7.2. It is electrically isolated from all internal circuitry and must remain unconnected - tying it to GND or VCC has no functional effect but may risk mechanical stress or solder bridging in dense layouts.

74AHCT1G14GV,125 Specifications

Product attributes: Attribute value

Manufacturer:: Nexperia USA Inc.

Series:: 74AHCT

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:: 4.5V ~ 5.5V

Current - Quiescent (Max):: 1 µA

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

Input Logic Level - Low:: 0.5V ~ 0.6V

Input Logic Level - High:: 2V

Max Propagation Delay @ V, Max CL:: 8.5ns @ 5V, 50pF

Operating Temperature:: -40°C ~ 125°C

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: SC-74A

74AHCT1G14GV,125 FAQ

1.How can I place an order for 74AHCT1G14GV,125 through Aetrix?

Please submit a Request for Quotation (RFQ) for 74AHCT1G14GV,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 74AHCT1G14GV,125 reliable?

The price and inventory of 74AHCT1G14GV,125 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74AHCT1G14GV,125 is usually 5 days.

3.What payment methods are accepted for 74AHCT1G14GV,125?

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Once your 74AHCT1G14GV,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 74AHCT1G14GV,125?

For technical support, including 74AHCT1G14GV,125 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74AHCT1G14GV,125 requirements.

6.How does Aetrix verify that 74AHCT1G14GV,125 is sourced from the original manufacturer or authorized distributors?

All 74AHCT1G14GV,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 74AHCT1G14GV,125 meets industry standards.

7.What is the process for return or replacement of 74AHCT1G14GV,125?

All 74AHCT1G14GV,125 units undergo pre-shipment inspection (PSI). If there is an issue with 74AHCT1G14GV,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 74AHCT1G14GV,125 part is unused and in its original packaging.

Return procedure for 74AHCT1G14GV,125:

1.Submit a request within 90 days.

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

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