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

Nexperia USA Inc. 74HC14D,653

Name: 74HC14D,653
Brand: Nexperia USA Inc.
SKU: 74HC14D,653
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: 74HC14D,653

Manufacturer:: Nexperia USA Inc.

Category:: Gates and Inverters

Package:: 14-SOIC (0.154", 3.90mm Width)

Datasheet:: 74HC14D,653.pdf

Description:: IC INVERT SCHMITT 6CH 1-INP 14SO

Quantity:: RFQ Add To RFQ list

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Inventory:78,488

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Product details

Overview

74HC14D,653 from Nexperia is a hex inverting Schmitt trigger IC designed for noise-immune signal conditioning in digital logic interfaces. It operates from 2.0 V to 6.0 V, features six independent channels with hysteresis (V_H = 0.6–1.6 V at V_CC = 6.0 V), supports -40 °C to +125 °C ambient range, and delivers propagation delay as low as 12 ns at V_CC = 6.0 V - used in waveform shaping and relaxation oscillator circuits.

For engineers reviewing the 74HC14D,653 datasheet, 74HC14D,653 pinout, 74HC14D,653 application, or 74HC14D,653 equivalent, this page provides verified functional identity, SO14 package mapping, Schmitt threshold values (VT+ = 2.1–4.2 V, VT− = 1.2–2.6 V), dynamic timing specs, and validated alternative options for TTL/CMOS interface design.

Technical Context

The 74HC14D,653 implements six independent CMOS inverter stages, each with asymmetric Schmitt-trigger input thresholds enabling robust rejection of slow-rising or noisy signals. Its input clamp diodes allow safe interfacing to voltages exceeding V_CC when current-limiting resistors are used.

It complies with JEDEC JESD7A (2.0–6.0 V) and JESD8C (2.7–3.6 V), supports unlimited input rise/fall times, and exhibits latch-up immunity >100 mA per JESD78 Class II Level B - confirming suitability for industrial control and sensor signal conditioning where signal integrity is critical.

Key Specifications

Parameter	Value and Actual Design Meaning
Supply Voltage Range	2.0 V to 6.0 V - enables direct compatibility with 3.3 V and 5 V logic systems without level shifters.
Propagation Delay (t_pd)	12 ns (typ) at V_CC = 6.0 V, CL = 50 pF - ensures precise timing in clockless oscillators and edge-sensitive triggers.
Input Hysteresis (V_H)	0.6–1.6 V (V_CC = 2.0–6.0 V) - provides noise margin ≥400 mV in typical 5 V operation, rejecting sub-microsecond glitches.
Output Drive Strength	±25 mA (IO) - sufficient to directly drive LEDs, small relays, or fan-out to ≥10 standard 74HC inputs.
Operating Temperature	-40 °C to +125 °C - qualified for under-hood automotive modules and industrial PLC I/O stages.
Input Clamp Diodes	Integrated - permits safe interface to 12 V analog sensors via series resistor, eliminating external protection components.
Power Dissipation (P_tot)	500 mW (SO14), derates 10.1 mW/K above 100 °C - supports sustained operation in thermally constrained enclosures.

Pinout & Package

74HC14D,653 is housed in a 14-lead SO14 (SOT108-1) plastic small outline package, 3.9 mm body width, with gull-wing leads and pin 1 index marker. Thermal resistance R_thJA = 100 K/W (JEDEC Std 22-A104).

Pin/Terminal	Circuit Role	Design Meaning
1, 3, 5, 9, 11, 13	Input (1A–6A)	Schmitt-triggered inverter inputs - accept slow edges; require no external hysteresis network.
2, 4, 6, 8, 10, 12	Output (1Y–6Y)	Inverted, rail-to-rail CMOS outputs - drive capacitive loads up to 50 pF within spec.
7	GND	Ground reference for all inputs/outputs and internal circuitry - must be low-impedance connection.
14	V_CC	Positive supply rail - decoupling capacitor (100 nF) required within 10 mm of this pin.

Key Features

Feature	Design Value
Wide V_CC range (2.0–6.0 V)	Enables single-part support across legacy 5 V and modern 3.3 V microcontroller I/O domains.
Unlimited input rise/fall times	Eliminates need for external RC differentiation networks in switch debouncing or sensor pulse conditioning.
High noise immunity (≥400 mV hysteresis)	Rejects EMI-induced transients on long PCB traces or unshielded cables in factory automation.
Latch-up immunity >100 mA	Ensures fault tolerance during hot-plug events or transient overvoltage exposure in field-deployed equipment.
ESD protection (HBM >2000 V, CDM >1000 V)	Reduces handling-related failures during manual assembly and board-level rework.

Applications

Waveform Shaping

Astable Multivibrator

Use Scenario: Converting noisy sine-wave or triangle-wave signals from analog sensors into clean square waves for microcontroller capture.

IC Role / Device Role / Timing Role: Six-channel Schmitt inverter acting as zero-crossing detector and edge sharpener - each channel processes one phase or sensor channel.

Use Value: Eliminates software-based filtering overhead and guarantees deterministic jitter-free timing for time-of-flight or frequency measurement.

Use Scenario: Generating fixed-frequency clock signals for LED flashers, status indicators, or test pattern generators in embedded diagnostics.

IC Role / Device Role / Timing Role: One inverter stage configured with RC feedback forms the core relaxation oscillator; remaining five channels buffer or divide output.

Use Value: Achieves stable 1–100 kHz oscillation without external op-amps or precision timing ICs - reduces BOM count by 3+ components.

Monostable Multivibrator

Switch Debouncing

Use Scenario: Creating precise, repeatable pulse widths (e.g., 10–100 ms) for actuator enable pulses or communication handshaking in industrial controllers.

IC Role / Device Role / Timing Role: Inverter + RC network generates single-shot output triggered by mechanical switch closure or digital event.

Use Value: Provides hardware-level timing stability unaffected by firmware latency or interrupt priority conflicts.

Use Scenario: Removing contact bounce from pushbuttons, limit switches, or rotary encoders in human-machine interfaces and safety-critical panels.

IC Role / Device Role / Timing Role: Input Schmitt threshold rejects sub-millisecond transients; output drives MCU GPIO with glitch-free logic levels.

Use Value: Guarantees single, clean edge per press - eliminates need for 10–20 ms software debounce delays and associated CPU load.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
74HCT14D,653	TTL-compatible input thresholds (VT+ ≈ 1.4 V, VT− ≈ 0.9 V at V_CC = 4.5 V); identical SO14 package and pinout.	Better interoperability with legacy 5 V TTL outputs; slightly higher ICC at V_CC = 5.5 V (20 μA vs. 2.0 μA typ for HC).	Select when interfacing directly to 74LS or older microcontrollers with TTL-level outputs.
SN74HC14DR (TI)	Same electrical specs and SO14 footprint; differs only in tape-and-reel packaging (DR vs. 653) and minor thermal resistance (R_thJA = 110 K/W).	No functional difference - suitable for drop-in replacement in existing designs requiring TI-sourced parts.	Choose for dual-sourcing strategy or when TI's quality documentation and AEC-Q200 reports are mandated.

Compared with 74HC14D,653, the 74HCT14D,653 offers superior TTL input compatibility but higher static current, while SN74HC14DR provides identical functionality with alternate logistics and qualification reporting - enabling supply chain resilience without circuit redesign.

Availability

74HC14D,653 is available at Aetrix Electronics and suitable for industrial control panels, sensor interface modules, and embedded timing circuits requiring stable component supply across extended temperature ranges and multi-year production cycles.

Supply support for 74HC14D,653 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 power MOSFET solutions - serving automotive, industrial, and consumer markets with ISO/TS 16949-certified manufacturing.

The 74HC14D,653 belongs to Nexperia's 74HC logic family, engineered for low-power, noise-immune digital interfacing in space-constrained and thermally demanding environments - emphasizing robustness over speed.

FAQ

What is the maximum input voltage allowed when V_CC = 5.0 V?

The 74HC14D,653 has integrated input clamp diodes that permit safe operation with input voltages up to V_CC + 0.5 V (i.e., 5.5 V) when current is limited to ±20 mA. Exceeding this requires an external series resistor - e.g., 1 kΩ limits current to ~7 mA for a 12 V input, satisfying absolute max ratings.

Can 74HC14D,653 drive a 50 pF capacitive load at 10 MHz?

Yes - with t_pd = 15 ns (typ) and t_t = 7 ns (typ) at V_CC = 4.5 V and CL = 50 pF, the device meets timing requirements for 10 MHz operation (100 ns period). Output rise/fall times remain <10 ns, ensuring clean edges without excessive ringing or overshoot.

Is the SO14 package RoHS-compliant and lead-free?

Yes - the 74HC14D,653 in SOT108-1 package is fully RoHS-compliant and lead-free per EU Directive 2011/65/EU, with homogeneous lead content <1000 ppm. Nexperia confirms compliance via material declarations and IMDS submissions for all production lots.

How does hysteresis vary with supply voltage?

Hysteresis (V_H) scales approximately linearly with V_CC: 0.2 V at 2.0 V, 0.9 V at 4.5 V, and 1.6 V at 6.0 V. This maintains consistent noise margin percentage (~25–30% of V_CC) across the full operating range, unlike comparator-based solutions with fixed thresholds.

74HC14D,653 Specifications

Product attributes: Attribute value

Manufacturer:: Nexperia USA Inc.

Series:: 74HC

Package/Case:: 14-SOIC (0.154", 3.90mm Width)

Packaging:: Tape & Reel (TR)

Product Status:: Active

Logic Type:: Inverter

Number of Circuits:: 6

Number of Inputs:: 1

Features:: Schmitt Trigger

Voltage - Supply:: 2V ~ 6V

Current - Quiescent (Max):: 2 µA

Current - Output High, Low:: 5.2mA, 5.2mA

Input Logic Level - Low:: 0.3V ~ 1.2V

Input Logic Level - High:: 1.5V ~ 4.2V

Max Propagation Delay @ V, Max CL:: 21ns @ 6V, 50pF

Operating Temperature:: -40°C ~ 125°C

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: 14-SO

74HC14D,653 FAQ

1.How can I place an order for 74HC14D,653 through Aetrix?

Please submit a Request for Quotation (RFQ) for 74HC14D,653 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 74HC14D,653 reliable?

The price and inventory of 74HC14D,653 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74HC14D,653 is usually 5 days.

3.What payment methods are accepted for 74HC14D,653?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74HC14D,653 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for 74HC14D,653?

74HC14D,653 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your 74HC14D,653 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 74HC14D,653?

For technical support, including 74HC14D,653 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74HC14D,653 requirements.

6.How does Aetrix verify that 74HC14D,653 is sourced from the original manufacturer or authorized distributors?

All 74HC14D,653 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 74HC14D,653 meets industry standards.

7.What is the process for return or replacement of 74HC14D,653?

All 74HC14D,653 units undergo pre-shipment inspection (PSI). If there is an issue with 74HC14D,653, 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 74HC14D,653 part is unused and in its original packaging.

Return procedure for 74HC14D,653:

1.Submit a request within 90 days.

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

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