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

STMicroelectronics 74V1G14CTR

Name: 74V1G14CTR
Brand: STMicroelectronics
SKU: 74V1G14CTR
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: 74V1G14CTR

Manufacturer:: STMicroelectronics

Category:: Gates and Inverters

Package:: 5-TSSOP, SC-70-5, SOT-353

Datasheet:: 74V1G14CTR.pdf

Description:: IC INVERTER 1CH 1-INP SOT323-5

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Product details

Overview

74V1G14CTR from STMicroelectronics is a single high-speed CMOS Schmitt trigger inverter in SOT323-5L package, operating from 2V to 5.5V, with 4.3ns typical propagation delay at 5V, 1µA max quiescent current at 25°C, and 1V typical hysteresis at 4.5V; used for noise-immune signal conditioning in 3.3V/5V mixed-voltage interface circuits.

For engineers reviewing the 74V1G14CTR datasheet, 74V1G14CTR pinout, 74V1G14CTR application, or 74V1G14CTR equivalent, key selection criteria include input hysteresis width (0.4–1.4V), symmetrical output drive (±8mA min), power-down input protection, ESD-hardened inputs, and compatibility with slow-edge signals in industrial sensor interfaces and level-shifting receivers.

Technical Context

The device implements a three-stage buffered Schmitt inverter architecture with internal hysteresis, enabling reliable switching on slowly rising/falling waveforms without oscillation. Its input accepts 0–7V regardless of VCC, supporting hot-swap and 5V-to-3V translation.

It features power-down protection that prevents back-driving during supply-off conditions, and includes ESD protection diodes rated for ±20mA input/output clamp current. Output impedance is balanced (|IOH| = IOL ≥ 8mA at VCC = 4.5V), ensuring matched rise/fall times.

Key Specifications

Parameter	Value and Actual Design Meaning
Propagation Delay	4.3ns typ. at VCC=5V, CL=15pF - enables high-speed clock/data edge regeneration
Hysteresis Voltage	0.4–1.4V across VCC=3–5.5V - rejects noise up to ±700mV on input transitions
Supply Range	2V to 5.5V - supports dual-rail systems including 3.3V and 5V logic domains
Output Drive	±8mA min. at VCC=4.5V - drives standard CMOS loads with margin for fanout & trace capacitance
Quiescent Current	1µA max. at TA=25°C - suitable for battery-backed or ultra-low-power wake-up circuits
Input Voltage Range	−0.5V to +7.0V - allows safe interfacing to overvoltage or unpowered subsystems

Pinout & Package

SOT323-5L package: 1.35mm × 2.1mm × 0.95mm body, 5-terminal surface-mount, lead pitch 0.65mm, moisture sensitivity level MSL3.

Pin/Terminal	Circuit Role	Design Meaning
1	NC	No connection - electrically isolated; no routing or soldering required
2	1A	Inverting Schmitt input - accepts 0–7V, provides hysteresis-triggered logic transition
3	GND	Ground reference - return path for all internal currents and ESD clamps
4	1Y	Inverted output - actively driven high/low with symmetrical sourcing/sinking capability
5	VCC	Positive supply - powers internal logic stages and output buffers; tolerant of 2–5.5V

Key Features

Feature	Design Value
Input hysteresis	Guaranteed 0.4V min. at 3V supply - eliminates chatter on noisy or slow analog-like signals
Power-down input protection	Accepts 0–7V input with VCC = 0V - prevents latch-up and back-powering in partial-power-down systems
ESD immunity	Human-body model ≥ 2kV - protects against handling damage without external TVS
Balanced propagation delays	tPLH ≅ tPHL - ensures minimal duty-cycle distortion in clock inversion applications

Applications

Industrial Sensor Interface

Level-Shifting Receiver

Use Scenario: Converting slow-rising thermistor or potentiometer output into clean digital edges for microcontroller ADC trigger or GPIO interrupt.

IC Role / Device Role / Timing Role: Schmitt inverter acting as noise-immune signal conditioner and edge shaper before digital sampling.

Use Value: Hysteresis width ≥0.4V rejects EMI-induced glitches on long sensor traces without external RC filtering.

Use Scenario: Interfacing a 5V open-collector encoder output to a 3.3V FPGA input bank with mixed-voltage I/O.

IC Role / Device Role / Timing Role: Voltage-tolerant inverter providing bidirectional level translation and signal inversion.

Use Value: Input range (0–7V) and VCC-independent clamping allow safe operation even when 3.3V rail is off.

Low-Power Wake-Up Circuit

Reset Signal Debouncer

Use Scenario: Monitoring a battery-monitoring comparator output to wake an MCU from deep sleep using minimal current.

IC Role / Device Role / Timing Role: Ultra-low-I_CC (1µA max.) inverter generating clean reset-release pulse after voltage stabilization.

Use Value: Quiescent current <1µA extends shelf life of coin-cell-powered devices over years.

Use Scenario: Cleaning mechanical switch bounce on a system reset line before feeding to a PMIC or processor reset pin.

IC Role / Device Role / Timing Role: Hysteresis-based debouncer eliminating multiple false resets caused by contact chatter.

Use Value: Guaranteed 0.4–1.4V hysteresis suppresses transients ≤150ms without external timing components.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
SN74LVC1G14DBVR	Lower VCC range (1.65–5.5V); 3.5ns tPD at 3.3V; no 7V input tolerance	Not suitable for hot-swap or overvoltage-safe designs where input may exceed VCC	Prefer when only 1.8V/3.3V operation is needed and board space is constrained (SOT23-5)
NC7SZ14P5X	Higher ICC (10µA typ.); smaller SOT353-5 package; hysteresis ~0.3V at 3.3V	Reduced noise margin and higher static power limit use in always-on battery nodes	Choose for cost-sensitive consumer designs where 0.3V hysteresis suffices and ESD robustness is secondary

Compared with SN74LVC1G14DBVR and NC7SZ14P5X, the 74V1G14CTR uniquely combines 7V input tolerance, sub-µA quiescent current, and guaranteed 0.4V+ hysteresis - making it optimal for industrial mixed-voltage systems requiring fail-safe signal integrity under partial power-down.

Availability

74V1G14CTR is available at Aetrix Electronics and suitable for industrial sensor interfaces, low-power wake-up circuits, reset debouncing, and level-shifting receivers requiring stable component supply across extended temperature ranges (−55°C to +125°C).

Supply support for 74V1G14CTR 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, designing and manufacturing analog, MEMS, power, and microcontroller solutions for automotive, industrial, and consumer markets.

The 74V series targets high-speed, low-power logic applications in harsh environments, emphasizing robustness, wide supply range, and mixed-voltage interoperability for industrial control and instrumentation.

FAQ

Can 74V1G14CTR operate with VCC = 2.0V while accepting a 5V input signal?

Yes. The device supports input voltages from −0.5V to +7.0V independent of VCC, so a 5V signal applied to pin 2 (1A) is fully valid and safely clamped even when VCC = 2.0V. This enables reliable level translation without external resistors or diodes.

What is the minimum hysteresis voltage at VCC = 3.3V?

At VCC = 3.3V, the minimum hysteresis voltage (V_H = V_T+ − V_T−) is 0.3V, derived from guaranteed thresholds of V_T+ ≥ 0.9V and V_T− ≤ 1.9V (per DC specs table, 3.0V row). This ensures noise rejection ≥150mV on slow edges.

Is pin 1 (NC) internally connected or floating?

Pin 1 is explicitly designated "Not Connected" in the official pin description and has no internal bond wire or silicon connection. It must remain unconnected on PCB layout - no pull-up, pull-down, or routing is permitted, as confirmed by ST's mechanical and functional documentation.

Does 74V1G14CTR support hot-swap insertion when VCC is unpowered?

Yes. Power-down protection on the input allows safe application of signals to pin 2 while VCC = 0V. Internal clamping diodes route excess current to GND or VCC (whichever is present), preventing back-powering and latch-up - verified per absolute maximum ratings and input equivalent circuit diagrams.

74V1G14CTR Specifications

Product attributes: Attribute value

Manufacturer:: STMicroelectronics

Series:: 74V

Package/Case:: 5-TSSOP, SC-70-5, SOT-353

Packaging:: Tape & Reel (TR)

Product Status:: Obsolete

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:: 8ns @ 5V, 50pF

Operating Temperature:: -55°C ~ 125°C

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: SOT-323-5

74V1G14CTR FAQ

1.How can I place an order for 74V1G14CTR through Aetrix?

Please submit a Request for Quotation (RFQ) for 74V1G14CTR 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 74V1G14CTR reliable?

The price and inventory of 74V1G14CTR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74V1G14CTR is usually 5 days.

3.What payment methods are accepted for 74V1G14CTR?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74V1G14CTR transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for 74V1G14CTR?

74V1G14CTR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your 74V1G14CTR 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 74V1G14CTR?

For technical support, including 74V1G14CTR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74V1G14CTR requirements.

6.How does Aetrix verify that 74V1G14CTR is sourced from the original manufacturer or authorized distributors?

All 74V1G14CTR 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 74V1G14CTR meets industry standards.

7.What is the process for return or replacement of 74V1G14CTR?

All 74V1G14CTR units undergo pre-shipment inspection (PSI). If there is an issue with 74V1G14CTR, 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 74V1G14CTR part is unused and in its original packaging.

Return procedure for 74V1G14CTR:

1.Submit a request within 90 days.

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

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