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

Diodes Incorporated 74AHCT14T14-13

Name: 74AHCT14T14-13
Brand: Diodes Incorporated
SKU: 74AHCT14T14-13
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: 74AHCT14T14-13

Manufacturer:: Diodes Incorporated

Category:: Gates and Inverters

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

Datasheet:: 74AHCT14T14-13.pdf

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

Quantity:: RFQ Add To RFQ list

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Product details

Overview

74AHCT14T14-13 from Diodes Incorporated is a hex inverter IC with Schmitt-trigger inputs, designed for noise-immune signal conditioning in 5V logic systems. It features six independent gates, TTL-compatible inputs, 4.5V–5.5V supply operation, ±8mA output drive at V_CC = 4.5V, and hysteresis of 0.5V (min) at 4.5V - enabling reliable debouncing in keyboard interfaces and sensor input conditioning.

For engineers reviewing the 74AHCT14T14-13 datasheet, 74AHCT14T14-13 pinout, 74AHCT14T14-13 application, or 74AHCT14T14-13 equivalent, key selection criteria include input hysteresis width, propagation delay under 15pF load (typ. 3.4ns), output drive capability, ESD robustness (2kV HBM), and TSSOP-14 package compatibility with high-density PCB layouts.

Technical Context

The device implements six identical inverting buffers, each with asymmetric Schmitt-trigger thresholds (VT+ = 1.9V, VT− = 0.5V at V_CC = 4.5V), delivering 1.4V hysteresis to reject slow-rising or noisy signals. All inputs tolerate 0–5.5V and are TTL-level compatible, while outputs drive standard CMOS loads with rail-to-rail swing.

It operates across −40°C to +125°C ambient, supports 1MHz switching (C_pd = 14.8pF/gate), and meets JESD 78 Class II latch-up immunity (>250mA). Unused inputs must be tied to V_CC or GND to prevent floating-induced current leakage.

Key Specifications

Parameter	Value and Actual Design Meaning
Supply Voltage	4.5V–5.5V - ensures stable operation across industrial-grade 5V rails with ±10% tolerance.
Input Hysteresis	0.5V min at 4.5V - enables clean edge detection on slow or noisy signals like mechanical switch bounce.
Output Drive	±8mA at V_CC = 4.5V - sufficient to drive multiple 74-series inputs or small LED indicators without external buffering.
Propagation Delay	3.4ns typ (CL = 15pF, V_CC = 5.5V) - supports >100MHz toggle rates in timing-critical logic paths.
ESD Protection	2kV HBM - exceeds IEC 61000-4-2 Level 2, reducing need for external TVS in board-level ESD protection schemes.
Power Dissipation	20μA ICC (quiescent, TA = 25°C) - enables low-static-power operation in battery-backed or always-on subsystems.

Pinout & Package

TSSOP-14 package: 4.9mm × 4.4mm body, 0.65mm pitch, 1.2mm max height, lead-free and RoHS-compliant. Designed for automated SMT assembly and thermal performance in compact consumer electronics.

Pin/Terminal	Circuit Role	Design Meaning
1, 3, 5, 9, 11, 13 (A)	Input (Inverter Stage N)	Accepts TTL/CMOS logic levels; Schmitt-trigger action prevents metastability on slow edges.
2, 4, 6, 8, 10, 12 (Y)	Output (Inverted Signal)	Push-pull CMOS output capable of sourcing/sinking 8mA; compatible with 74-series fanout requirements.
7	GND	Ground reference for all internal circuitry and output stage return path.
14	V_CC	Primary power supply terminal; decoupling capacitor (0.1μF) required within 5mm for noise suppression.

Key Features

Feature	Design Value
Schmitt-trigger inputs	Enables reliable signal recovery from slow-rise sources (e.g., RC-debounced switches) without external hysteresis components.
TTL-compatible inputs	Accepts standard 0.8V/2.0V logic thresholds - simplifies interface with legacy microcontrollers and peripheral ICs.
Low quiescent current	20μA typical ICC allows use in low-power subsystems where standby current budget is constrained.
Robust ESD rating	2kV HBM and 1kV CDM support direct handling and board-level integration without additional ESD mitigation.

Applications

Keyboard Interface

Industrial Sensor Interface

Use Scenario: Debouncing mechanical keypresses in notebook or embedded keypad designs.

IC Role / Device Role / Timing Role: Signal conditioner that converts noisy, slow-rising switch transitions into clean digital edges.

Use Value: Eliminates need for external RC networks or firmware debouncing, reducing BOM count and latency.

Use Scenario: Conditioning analog sensor outputs (e.g., thermistor-based voltage dividers) before ADC sampling.

IC Role / Device Role / Timing Role: Threshold comparator with hysteresis to suppress noise-induced false triggers.

Use Value: Provides deterministic switching at defined upper/lower thresholds, improving system reliability in electrically noisy environments.

Legacy Bus Interface

Digital Audio Clock Buffer

Use Scenario: Level-shifting and waveform sharpening between 3.3V microcontroller GPIO and 5V legacy peripherals.

IC Role / Device Role / Timing Role: Logic-level translator and edge accelerator for bidirectional data lines.

Use Value: Maintains signal integrity across mixed-voltage domains without active level shifters or timing skew.

Use Scenario: Cleaning jitter-prone crystal oscillator outputs feeding audio codec clock inputs.

IC Role / Device Role / Timing Role: Digital buffer with noise rejection to stabilize clock edges before distribution.

Use Value: Reduces cycle-to-cycle jitter by suppressing sub-threshold noise on clock lines, improving audio SNR.

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
SN74AHCT14DR	SOIC-14 package; identical electrical specs but larger footprint and higher thermal resistance.	Preferred for through-hole prototyping or legacy SOIC-based boards with lower density constraints.	Select when board layout lacks space for fine-pitch TSSOP or requires manual soldering.
74LVC14APW,118	3.3V-only operation (1.65–3.6V); lower hysteresis (0.3V typ); 24mA drive; smaller TSSOP-14 footprint.	Optimized for modern low-voltage MCU interfaces; not interoperable with 5V systems.	Choose only for 3.3V-native designs requiring higher drive strength and lower static power.

Compared with SN74AHCT14DR and 74LVC14APW,118, the 74AHCT14T14-13 uniquely balances 5V compatibility, TSSOP-14 miniaturization, and proven Schmitt-noise immunity - making it optimal for space-constrained, industrial-grade 5V logic interfacing where legacy voltage compliance is mandatory.

Availability

74AHCT14T14-13 is available at Aetrix Electronics and suitable for industrial control panels, consumer audio/video equipment, and embedded computing platforms requiring stable component supply and long-term manufacturability.

Supply support for 74AHCT14T14-13 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

Diodes Incorporated is a global manufacturer of discrete semiconductors and analog ICs, specializing in high-reliability, cost-optimized components for industrial, computing, and consumer markets.

The AHCT logic family targets 5V mixed-signal systems needing TTL compatibility, low power, and robust noise immunity - specifically engineered for legacy interface bridging and signal conditioning in high-volume electronics.

FAQ

Can 74AHCT14T14-13 operate reliably at 4.5V supply?

Yes. The device is fully specified from 4.5V to 5.5V per its Recommended Operating Conditions. At 4.5V, it delivers guaranteed 3.8V VOH (IOH = –8mA) and 0.44V VOL (IOL = 8mA), meeting 74-series interface thresholds with margin. Propagation delay remains ≤9.0ns over temperature.

What is the maximum capacitive load this device can drive?

The datasheet specifies switching characteristics up to CL = 50pF, with tPD ≤11.0ns at VCC = 5.5V and –40°C to +125°C. Driving >50pF may increase delay and reduce edge rate but does not damage the part. For loads >100pF, consider adding a series resistor to limit ringing.

Are unused inputs required to be terminated?

Yes. Per datasheet Note 5, all unused inputs must be tied to VCC or GND. Floating inputs cause increased ICC, potential oscillation, and elevated junction temperature due to partial conduction in input-stage transistors - risking functional instability and accelerated wear-out.

Does this part support hot-swap or live-insertion?

No. The 74AHCT14T14-13 lacks bus-hold, power-up 3-state, or Ioff protection. Applying signals before VCC stabilization may forward-bias internal clamps, causing excessive current flow. Always power VCC before applying input signals in hot-swap scenarios.

74AHCT14T14-13 Specifications

Product attributes: Attribute value

Manufacturer:: Diodes Incorporated

Series:: 74AHCT

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

Packaging:: Tape & Reel (TR)

Product Status:: Active

Logic Type:: Inverter

Number of Circuits:: 6

Number of Inputs:: 1

Features:: -

Voltage - Supply:: 4.5V ~ 5.5V

Current - Quiescent (Max):: 20 µA

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

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

Input Logic Level - High:: 1.9V ~ 2.1V

Max Propagation Delay @ V, Max CL:: 10ns @ 5V, 50pF

Operating Temperature:: -40°C ~ 125°C (TA)

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: 14-TSSOP

74AHCT14T14-13 FAQ

1.How can I place an order for 74AHCT14T14-13 through Aetrix?

Please submit a Request for Quotation (RFQ) for 74AHCT14T14-13 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 74AHCT14T14-13 reliable?

The price and inventory of 74AHCT14T14-13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74AHCT14T14-13 is usually 5 days.

3.What payment methods are accepted for 74AHCT14T14-13?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74AHCT14T14-13 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for 74AHCT14T14-13?

74AHCT14T14-13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your 74AHCT14T14-13 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 74AHCT14T14-13?

For technical support, including 74AHCT14T14-13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74AHCT14T14-13 requirements.

6.How does Aetrix verify that 74AHCT14T14-13 is sourced from the original manufacturer or authorized distributors?

All 74AHCT14T14-13 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 74AHCT14T14-13 meets industry standards.

7.What is the process for return or replacement of 74AHCT14T14-13?

All 74AHCT14T14-13 units undergo pre-shipment inspection (PSI). If there is an issue with 74AHCT14T14-13, 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 74AHCT14T14-13 part is unused and in its original packaging.

Return procedure for 74AHCT14T14-13:

1.Submit a request within 90 days.

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

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