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

Nexperia USA Inc. 74HC02DB,118

Name: 74HC02DB,118
Brand: Nexperia USA Inc.
SKU: 74HC02DB,118
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: 74HC02DB,118

Manufacturer:: Nexperia USA Inc.

Category:: Gates and Inverters

Package:: 14-SSOP (0.209", 5.30mm Width)

Datasheet:: 74HC02DB,118.pdf

Description:: IC GATE NOR 4CH 2-INP 14SSOP

Quantity:: RFQ Add To RFQ list

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Product details

Overview

74HC02DB,118 from Nexperia is a quad 2-input NOR gate logic IC operating from 2.0 V to 6.0 V supply, delivering CMOS-level input compatibility, propagation delays as low as 7 ns at VCC = 6.0 V (CL = 50 pF), and guaranteed operation from −40 °C to +125 °C. It features input clamp diodes enabling safe interfacing to voltages exceeding VCC using current-limiting resistors, and is housed in a 14-lead SSOP package (SOT337-1).

For engineers reviewing the 74HC02DB,118 datasheet, 74HC02DB,118 pinout, 74HC02DB,118 application, or 74HC02DB,118 equivalent, this device serves as a standard-compliant, temperature-robust building block for combinational logic synthesis, reset signal conditioning, and enable/disable control in industrial control units, power management sequencers, and digital interface glue logic.

Technical Context

The 74HC02DB,118 implements four independent 2-input NOR gates with fully buffered outputs and symmetric HIGH/LOW output drive capability (±4.0 mA at VCC = 4.5 V). Its inputs accept CMOS-level thresholds (VIH = 3.15 V min at VCC = 4.5 V; VIL = 1.35 V max), ensuring noise immunity >1.3 V under nominal conditions.

It complies with JEDEC JESD7A (2.0–6.0 V) and JESD8C (2.7–3.6 V), supports HBM ESD >2000 V and CDM >1000 V, and exhibits static input leakage <±1 μA across full temperature range - critical for low-power battery-backed systems and high-reliability embedded controllers.

Key Specifications

Parameter	Value and Actual Design Meaning
Logic Function	Quad 2-input NOR gate - provides four independent OR-NOT logic operations per package
Supply Voltage Range	2.0 V to 6.0 V - enables direct interface with 3.3 V and 5 V logic domains without level shifters
Propagation Delay (tpd)	7 ns typical at VCC = 6.0 V, CL = 50 pF - supports >70 MHz toggle rates in synchronous logic paths
Output Drive	±4.0 mA at VCC = 4.5 V - sufficient to directly drive multiple 74HC-series inputs or small capacitive loads (<30 pF)
Operating Temperature	−40 °C to +125 °C - qualified for under-hood automotive modules, industrial PLCs, and outdoor telecom equipment
Input Clamp Diodes	Integrated - permits safe overvoltage input handling (e.g., 12 V sensor signals) when used with series current-limiting resistors
Power Dissipation (Ptot)	500 mW (SSOP package) - supports sustained operation in compact enclosures with minimal thermal derating up to 100 °C

Pinout & Package

74HC02DB,118 is supplied in a 14-lead shrink small outline package (SSOP), designated SOT337-1, with 0.65 mm lead pitch and body dimensions of 5.3 × 6.2 × 1.75 mm. The package is lead-free and RoHS compliant.

Pin/Terminal	Circuit Role	Design Meaning
1, 4, 10, 13	1Y, 2Y, 3Y, 4Y	Active-HIGH NOR gate outputs - sink/source up to ±4.0 mA, rail-to-rail swing within 0.1–0.26 V of VCC/GND
2, 5, 8, 11	1A, 2A, 3A, 4A	First input per gate - CMOS-compatible threshold, supports VI = 0 to VCC, clamped to −0.5 V / VCC + 0.5 V
3, 6, 9, 12	1B, 2B, 3B, 4B	Second input per gate - identical electrical behavior to A inputs; both inputs fully interchangeable
7	GND	Ground reference (0 V) - must be connected to system ground plane for stable noise margin and output switching
14	VCC	Positive supply - decoupling capacitor (100 nF ceramic) required within 5 mm for reliable high-speed operation

Key Features

Feature	Design Value
Wide VCC range	2.0–6.0 V operation - eliminates need for separate voltage regulators in mixed-supply systems
High noise immunity	Typical noise margin >1.3 V at VCC = 4.5 V - ensures robust operation in electrically noisy factory environments
Latch-up immunity	Exceeds 100 mA per JESD78 Class II Level B - prevents destructive latch-up during transient overvoltage events
Input clamp diodes	Integrated on all inputs - enables direct connection to external 12 V sensors or switches with only a series resistor
ESD protection	HBM >2000 V, CDM >1000 V - reduces field failure risk during manual handling and board assembly

Applications

Industrial Control Logic

Power Sequencing

Use Scenario: Generating synchronized enable/disable signals for multiple DC-DC converters in a programmable power supply.

IC Role / Device Role / Timing Role: NOR gate configured as active-low OR function to combine fault flags and inhibit converter startup until all rails are stable.

Use Value: Eliminates discrete diode-OR networks, reducing BOM count and improving timing consistency across channels.

Use Scenario: Implementing hardware-based reset hold-off during cold-start of an FPGA-based motor controller.

IC Role / Device Role / Timing Role: Combining POR, watchdog timeout, and overtemperature signals into a single system reset assertion via NOR logic inversion.

Use Value: Ensures deterministic reset behavior independent of software state, meeting IEC 61800-5-2 functional safety requirements.

Digital Interface Glue

Legacy Bus Arbitration

Use Scenario: Translating between 3.3 V microcontroller GPIO and 5 V legacy peripheral address strobes.

IC Role / Device Role / Timing Role: Level-shifting logic gate with CMOS input thresholds compatible with both voltage domains and rail-to-rail output swing.

Use Value: Avoids dedicated level translators while maintaining <10 ns propagation skew across four parallel lines.

Use Scenario: Resolving bus contention in a multi-master RS-485 network using hardware priority encoding.

IC Role / Device Role / Timing Role: Building priority encoder subcircuit where NOR gates detect dominant master request and mask lower-priority assertions.

Use Value: Guarantees sub-microsecond arbitration response without software overhead or interrupt latency.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
74HC02D,118	SO14 package (SOT108-1); 3.9 mm body width; 1.27 mm lead pitch; higher thermal resistance (10.1 mW/K derating above 100 °C)	Better suited for through-hole prototyping or wave-soldered industrial PCBs where mechanical robustness outweighs footprint density	Select when board assembly uses traditional reflow or wave soldering and thermal load is moderate
74HC02PW,118	TSSOP14 package (SOT402-1); 4.4 mm body width; 0.65 mm pitch; improved thermal performance (7.3 mW/K derating above 81 °C)	Preferred for space-constrained consumer electronics where thermal dissipation under continuous load is critical	Select when PCB real estate is limited and ambient temperature exceeds 85 °C during operation

Compared with 74HC02DB,118, the SO14 variant offers greater mechanical stability but larger footprint and slower thermal response, while the TSSOP14 improves thermal efficiency and density at the cost of slightly reduced handling robustness - choice depends on assembly method, thermal budget, and layout constraints.

Availability

74HC02DB,118 is available at Aetrix Electronics and suitable for industrial control logic, power sequencing circuits, and digital interface glue requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for 74HC02DB,118 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 specializing in high-performance, high-reliability logic, analog, and discrete components, with manufacturing rooted in process technology leadership and automotive-grade quality systems.

The 74HC02DB,118 belongs to Nexperia's 74HC logic family, engineered for low-power, high-noise-immunity digital interfacing in industrial automation, power management, and embedded control applications where reliability across wide temperature and voltage ranges is essential.

FAQ

Can 74HC02DB,118 operate reliably at 2.0 V supply?

Yes. The 74HC02DB,118 is fully specified down to 2.0 V supply voltage, with guaranteed VIH ≥1.5 V and VIL ≤0.5 V at that level, and propagation delay ≤90 ns (typical 25 ns) under 50 pF load. This makes it suitable for ultra-low-voltage battery-powered systems where other HC variants may fail to meet timing or noise margin specs.

What is the maximum capacitive load this device can drive without exceeding recommended transition times?

At VCC = 4.5 V, the 74HC02DB,118 delivers typical transition time (tt) of 7 ns with CL = 50 pF. Driving loads >75 pF increases tt beyond 15 ns and risks setup/hold violations in synchronous designs. For loads >50 pF, add a series resistor (22–47 Ω) near the output to damp ringing and maintain signal integrity.

Does this part include Schmitt-trigger inputs?

No. The 74HC02DB,118 has standard CMOS inputs without hysteresis. Its input thresholds are fixed ratios of VCC (VIH ≈ 0.7×VCC, VIL ≈ 0.3×VCC), not voltage-difference dependent. For noisy signal conditioning, pair it with a dedicated Schmitt-trigger buffer such as the 74HC14 before the NOR input.

Is the SSOP package (SOT337-1) pin-compatible with SO14 or TSSOP14 footprints?

No. The 74HC02DB,118 in SOT337-1 (SSOP) has 0.65 mm lead pitch and 5.3 mm width, differing from SO14 (1.27 mm pitch, 3.9 mm width) and TSSOP14 (0.65 mm pitch but 4.4 mm width). Mechanical interference and solder joint reliability will be compromised if substituted without PCB footprint revision.

74HC02DB,118 Specifications

Product attributes: Attribute value

Manufacturer:: Nexperia USA Inc.

Series:: 74HC

Package/Case:: 14-SSOP (0.209", 5.30mm Width)

Packaging:: Tape & Reel (TR)

Product Status:: Obsolete

Logic Type:: NOR Gate

Number of Circuits:: 4

Number of Inputs:: 2

Features:: -

Voltage - Supply:: 2V ~ 6V

Current - Quiescent (Max):: 2 µA

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

Input Logic Level - Low:: 0.5V ~ 1.8V

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

Max Propagation Delay @ V, Max CL:: 15ns @ 6V, 50pF

Operating Temperature:: -40°C ~ 125°C

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: 14-SSOP

74HC02DB,118 FAQ

1.How can I place an order for 74HC02DB,118 through Aetrix?

Please submit a Request for Quotation (RFQ) for 74HC02DB,118 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 74HC02DB,118 reliable?

The price and inventory of 74HC02DB,118 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74HC02DB,118 is usually 5 days.

3.What payment methods are accepted for 74HC02DB,118?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74HC02DB,118 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for 74HC02DB,118?

74HC02DB,118 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your 74HC02DB,118 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 74HC02DB,118?

For technical support, including 74HC02DB,118 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74HC02DB,118 requirements.

6.How does Aetrix verify that 74HC02DB,118 is sourced from the original manufacturer or authorized distributors?

All 74HC02DB,118 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 74HC02DB,118 meets industry standards.

7.What is the process for return or replacement of 74HC02DB,118?

All 74HC02DB,118 units undergo pre-shipment inspection (PSI). If there is an issue with 74HC02DB,118, 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 74HC02DB,118 part is unused and in its original packaging.

Return procedure for 74HC02DB,118:

1.Submit a request within 90 days.

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

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