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

NXP Semiconductors 74HC02D,652

Name: 74HC02D,652
Brand: NXP Semiconductors
SKU: 74HC02D,652
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: 74HC02D,652

Manufacturer:: NXP Semiconductors

Category:: Gates and Inverters

Package:: -

Datasheet:: 74HC02D,652.pdf

Description:: IC GATE NOR

Quantity:: RFQ Add To RFQ list

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Inventory:29,110

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Product details

Overview

74HC02D,652 from Nexperia is a quad 2-input NOR gate in SO14 package, operating from 2.0 V to 6.0 V supply, delivering CMOS-level input compatibility, propagation delay as low as 7 ns at VCC = 6.0 V, and guaranteed operation from −40 °C to +125 °C - used for digital logic inversion, enable/disable control, and reset signal conditioning in industrial microcontroller interfaces.

For engineers reviewing the 74HC02D,652 datasheet, 74HC02D,652 pinout, 74HC02D,652 application, or 74HC02D,652 equivalent, key selection factors include input voltage thresholds (VIH = 4.2 V min at VCC = 6.0 V), output drive capability (VOH ≥ 5.48 V at IO = −5.2 mA), thermal stability across automotive-grade temperature range, and SO14 package compatibility with legacy PCB footprints.

Technical Context

This device implements four independent 2-input NOR gates using silicon-gate CMOS technology, with input clamp diodes enabling safe interfacing to voltages exceeding VCC when current-limiting resistors are used. Each gate exhibits symmetrical HIGH/LOW output voltage specs and defined transition behavior per IEC 60617 logic symbols.

It complies with JEDEC JESD7A (2.0–6.0 V) and JESD8C (2.7–3.6 V) standards, supports HBM ESD protection >2000 V and CDM >1000 V, and maintains latch-up immunity exceeding 100 mA per JESD78 Class II Level B - confirming robustness in noisy industrial environments.

Key Specifications

Parameter	Value and Actual Design Meaning
Logic Function	Quad 2-input NOR: outputs HIGH only when both inputs are LOW; enables active-LOW combinational logic and reset generation.
Supply Voltage Range	2.0 V to 6.0 V - supports mixed-voltage system interfacing (e.g., 3.3 V MCU controlling 5 V peripherals).
Propagation Delay	7 ns typical at VCC = 6.0 V, CL = 50 pF - ensures timing-critical signal routing in synchronous logic blocks.
Input Thresholds	VIH = 4.2 V min, VIL = 1.8 V max at VCC = 6.0 V - provides 1.2 V noise margin for reliable TTL/CMOS signal recognition.
Output Drive	VOH ≥ 5.48 V at IO = −5.2 mA; VOL ≤ 0.26 V at IO = 5.2 mA - sustains rail-to-rail swing into 50 pF loads without degradation.
Operating Temperature	−40 °C to +125 °C - qualified for under-hood automotive modules and industrial motor controllers.
Power Dissipation	500 mW max (SO14); derates linearly above 100 °C - allows sustained operation in thermally constrained enclosures.

Pinout & Package

74HC02D,652 uses the SOT108-1 (SO14) plastic small outline package: 14-pin, 3.9 mm body width, 1.27 mm lead pitch, gull-wing leads, and standard JEDEC MS-012 footprint.

Pin/Terminal	Circuit Role	Design Meaning
1, 4, 10, 13	1Y, 2Y, 3Y, 4Y	Independent NOR gate outputs - each drives one logic stage; open-drain use requires external pull-up.
2, 5, 8, 11	1A, 2A, 3A, 4A	First input per gate - accepts CMOS-level signals; clamp diodes allow overvoltage tolerance with series resistor.
3, 6, 9, 12	1B, 2B, 3B, 4B	Second input per gate - identical electrical behavior to A inputs; enables dual-input boolean evaluation.
7	GND	Ground reference (0 V) - must be low-impedance connection to minimize ground bounce in high-speed switching.
14	VCC	Positive supply rail - decoupling capacitor (100 nF ceramic) required within 5 mm of pin for stable operation.

Key Features

Feature	Design Value
Wide VCC range	2.0–6.0 V operation eliminates need for level shifters in multi-rail systems (e.g., 3.3 V FPGA + 5 V sensor interface).
High noise immunity	Guaranteed 1.2 V input hysteresis at VCC = 6.0 V reduces susceptibility to EMI-induced false triggering.
Input clamp diodes	Enable direct connection to 12 V control lines via 10 kΩ series resistor - avoids external protection components.
Latch-up immunity	Exceeds 100 mA per JESD78 Class II Level B - prevents destructive failure during transient overcurrent events.
Thermal grade	Rated for −40 °C to +125 °C ambient - validated for engine control units and power supply sequencers.

Applications

Industrial PLC I/O Expansion

Automotive Body Control Module

Use Scenario: Adding discrete logic to extend GPIO count on a Cortex-M4-based controller managing relay banks and status LEDs.

IC Role / Device Role / Timing Role: NOR gate implements active-LOW enable logic for grouped relay drivers and debounced fault indicator latching.

Use Value: Eliminates need for firmware polling by providing hardware-level signal combination with sub-10 ns timing precision.

Use Scenario: Generating synchronized reset pulses for multiple CAN transceivers and LIN bus nodes during ignition-on sequencing.

IC Role / Device Role / Timing Role: Quad NOR structure combines ignition signal, battery OK flag, and watchdog timeout to produce fail-safe reset assertion.

Use Value: Ensures deterministic power-up behavior across distributed ECUs without software dependency or clock source.

Medical Infusion Pump Logic

Test Equipment Signal Conditioning

Use Scenario: Interlocking safety interlocks (door switch, pressure sensor, motor stall detection) before enabling stepper motor driver.

IC Role / Device Role / Timing Role: Acts as hardware AND-NOT gate (via NOR + inversion) to enforce multi-condition enable requirement.

Use Value: Provides SIL-2 compliant response time (<15 ns) independent of MCU firmware execution path.

Use Scenario: Converting TTL-level pattern generator outputs to CMOS-compatible levels for DUT stimulus in automated test fixtures.

IC Role / Device Role / Timing Role: Level-shifting and signal inversion stage between 5 V test head and 3.3 V DUT inputs.

Use Value: Maintains <10 ns skew across all four channels, preserving timing integrity in high-speed digital validation.

Equivalent & Alternatives

The following parts are listed as comparable options for similar quad NOR gate applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
74HCT02D,652	TTL-compatible inputs (VIH = 2.0 V min), otherwise identical SO14 pinout and timing.	Better suited for interfacing with legacy 5 V TTL logic families without level translation.	Select when driving from 74LS-series or microcontroller GPIO lacking full CMOS swing.
SN74HC02DR	Same logic function and specs, but TI-manufactured SO14 package with different thermal resistance (RθJA = 110 K/W vs Nexperia's 100 K/W).	Slightly lower thermal performance limits maximum sustained switching frequency in unventilated enclosures.	Prefer for designs already using TI logic families to simplify supply chain and qualification.

Compared with 74HC02D,652, the 74HCT02D,652 offers easier integration with older TTL sources but sacrifices noise margin; the SN74HC02DR delivers identical functionality with minor thermal trade-offs and broader distributor availability in North America.

Availability

74HC02D,652 is available at Aetrix Electronics and suitable for industrial automation, automotive body electronics, medical device logic, and test equipment requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for 74HC02D,652 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 essential efficiency technologies, delivering high-performance logic, analog, and discrete components with emphasis on reliability and sustainability.

The 74HC02 belongs to Nexperia's HC logic family - engineered for low-power, high-noise-immunity digital interfacing in industrial, automotive, and consumer applications where robustness and wide supply range are critical.

FAQ

What is the maximum clock frequency supported by 74HC02D,652?

The 74HC02D,652 is not a clocked device - it is an asynchronous combinational logic gate. Its usable toggle rate depends on propagation delay (7 ns typical at VCC = 6.0 V) and load capacitance. With 50 pF load, maximum reliable switching frequency is approximately 35 MHz, assuming clean edges and proper decoupling.

Can 74HC02D,652 drive LED indicators directly?

No - its output current rating is ±25 mA absolute maximum, but recommended continuous drive is ≤4 mA per output to maintain VOH/VOL specs. Direct LED driving risks violating VOL spec and accelerating parametric drift. Use a discrete transistor or dedicated LED driver for sustained illumination.

Is 74HC02D,652 pin-compatible with 74LS02?

Yes, electrically and physically: both use SO14 packages and share identical pin assignments (1Y–4Y, 1A–4B, GND, VCC). However, 74HC02D,652 draws µA-level quiescent current versus mA for 74LS02, and requires CMOS-level inputs - direct replacement needs verification of driving source compatibility.

Does 74HC02D,652 require external pull-up resistors on outputs?

No - it features push-pull outputs capable of actively driving HIGH and LOW. Pull-ups are unnecessary unless implementing wired-OR logic (not supported by NOR topology) or interfacing with open-drain buses. Unused inputs must be tied to VCC or GND to prevent floating node oscillation.

74HC02D,652 Specifications

Product attributes: Attribute value

Manufacturer:: NXP Semiconductors

Series:: *

Package/Case:: -

Packaging:: Bulk

Product Status:: Active

Logic Type:: -

Number of Circuits:: -

Number of Inputs:: -

Features:: -

Voltage - Supply:: -

Current - Quiescent (Max):: -

Current - Output High, Low:: -

Input Logic Level - Low:: -

Input Logic Level - High:: -

Max Propagation Delay @ V, Max CL:: -

Operating Temperature:: -

Grade:: -

Qualification:: -

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74HC02D,652 FAQ

1.How can I place an order for 74HC02D,652 through Aetrix?

Please submit a Request for Quotation (RFQ) for 74HC02D,652 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 74HC02D,652 reliable?

The price and inventory of 74HC02D,652 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74HC02D,652 is usually 5 days.

3.What payment methods are accepted for 74HC02D,652?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74HC02D,652 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for 74HC02D,652?

74HC02D,652 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your 74HC02D,652 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 74HC02D,652?

For technical support, including 74HC02D,652 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74HC02D,652 requirements.

6.How does Aetrix verify that 74HC02D,652 is sourced from the original manufacturer or authorized distributors?

All 74HC02D,652 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 74HC02D,652 meets industry standards.

7.What is the process for return or replacement of 74HC02D,652?

All 74HC02D,652 units undergo pre-shipment inspection (PSI). If there is an issue with 74HC02D,652, 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 74HC02D,652 part is unused and in its original packaging.

Return procedure for 74HC02D,652:

1.Submit a request within 90 days.

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

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