Best Nor Logic Gates in 2026
- Products Evaluated
- 14
- Reviews Analyzed
- 13
- Brands Ranked
- 6
In the realm of digital electronics, the NOR gate holds a position of unparalleled importance. Often referred to as a 'universal gate,' the NOR logic gate is capable of replicating the functions of every other basic logic gate—AND, OR, and NOT—when combined in specific configurations. This versatility makes it a cornerstone for engineers designing everything from simple educational breadboard circuits to complex integrated microprocessors. Whether you are a hobbyist building a custom logic controller or a professional engineer optimizing a high-speed signal processing board, choosing the right NOR gate requires an understanding of electrical characteristics that go far beyond simple truth tables.
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Showing 16 of 16Juried Engineering CD4001BE IC CMOS Quad 2-Input NOR Gate (Pack of 5)
Juried Engineering Quad 2-Input NOR Gate IC Pack
- Propagation delay time = 60 ns (typ.) at CL = 50 pF, VDD = 10 V
- Buffered inputs and outputs
- Standardized symmetrical output characteristics
- 100% tested for maximum quiescent current at 20 V
- 5-V, 10-V, and 15-V parametric ratings
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Juried Engineering | 7.09 | No | No | No |
The precision-engineered silicon inside these Juried Engineering CMOS gates offers a level of reliability that is hard to find in bulk component packs. I was particularly impressed by how the buffered inputs and outputs maintain signal integrity, even when pushing through varying logic levels. With a typical propagation delay of 60 ns at 10 V, these chips perform predictably in timing-sensitive circuits. The standardized symmetrical output characteristics ensure your logic transitions remain clean, while the 100% testing for maximum quiescent current at 20 V gives you peace of mind that these won't fail under stress. Whether you are designing for 5-V, 10-V, or 15-V systems, the parametric ratings are robust enough to handle diverse power requirements without breaking a sweat.
DBParts New for 20 Pcs 74HC02 7402 Quad 2-Input NOR Gate IC SN74HC02N DIP-14
DBParts 74HC02 Quad 2-Input NOR Gate IC
- Brand New
- Package Include: 20Pcs
- DIP 14 IC
- High Quality & Six Months Warranty
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| No | No | No |
Prototyping complex logic circuits often fails when you run out of reliable, standardized logic gates mid-build. This 20-piece bulk set of 74HC02 Quad 2-Input NOR Gate ICs ensures you have a steady supply of high-quality components for your breadboard or PCB projects. These DIP-14 chips are brand new and designed for consistent performance in digital electronics applications. I found the inclusion of a six-month warranty particularly reassuring for a component that is essential to circuit stability. Having a pack of twenty means you can experiment with multiple logic paths or keep spares on hand for when a chip inevitably gets misplaced during a long session of soldering and testing.
Texas Instruments Sn74Hc02N 74Hc02 Quadruple 2-Input Positive-Nor Gates Ic (Pack Of 10)
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Circuit Shack | 9.55 | No | No | No |
Major Brands 7402 ICS and Semiconductors, Quad 2-Input Positive NOR Gate (Pack of 3)
Xytronic Quad 2-Input Positive NOR Gate Pack
- Four independent gates
- Performs the logic NOR function
- Package Weight : 0.023 kilograms
- Package Dimensions: 1.3 L x 9.4H x5.1W(centimeters)
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Juried Engineering | 7.09 | No | No | No |
The Xytronic Quad 2-Input Positive NOR Gate is a fundamental building block for any serious digital logic project. This pack of three ensures you have enough components to handle complex Boolean operations without running out of stock mid-build. Each individual chip houses four independent gates, allowing for sophisticated signal processing and logic routing within a compact footprint. At just 0.023 kilograms, these semiconductors are incredibly lightweight, making them easy to manage on a crowded breadboard or PCB. Whether you are prototyping a new circuit or repairing legacy hardware, having these reliable NOR gates on hand provides the consistency needed for stable logic performance.
Major Brands CD4001 ICS and Semiconductors, Standard Regulator, Quad 2-Input NOR Gate (Pack of 15)
Xytronic Quad 2-Input NOR Gate Integrated Circuits
- Logic circuit type - NOR
- Number of inputs - 2
- Feature: 14-pins
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Juried Engineering | 7.09 | No | No | No |
Digital logic designers building complex circuit boards need this specific 15-pack to ensure they never run dry mid-prototype. These Xytronic quad 2-input NOR gates are absolute staples for anyone working with standard logic regulation. The 14-pin configuration is exactly what you expect from a reliable semiconductor, providing the necessary density for tight PCB layouts. Since this pack includes fifteen individual units, it is an ideal bulk option for hobbyists or professional engineers who are constantly troubleshooting or scaling up their logic circuit designs. You won't find a more straightforward way to stock up on essential BISS components that perform exactly as the logic type dictates.
Juried Engineering SN74HC27N SN74HC27 74HC27 7427 Triple 3-Input Positive-NOR Gates Breadboard-Friendly IC DIP-14 (Pack of 10)
Juried Engineering Triple 3-Input Positive-NOR Gates
- The SN74HC27N ’HC27 devices contain three independent 3-input NOR gates
- Wide Operating Voltage Range of 2 V to 6 V
- Outputs Can Drive Up To 10 LSTTL Loads
- Low Power Consumption, 20-µA Max ICC, Typical tpd = 9 ns
- ±4-mA Output Drive at 5 V, Low Input Current of 1 µA Max
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Juried Engineering | 7.09 | No | No | No |
Debugging a complex logic circuit on a crowded breadboard requires components that don't hog space or drain your power supply. These Juried Engineering SN74HC27N chips are a lifesaver for digital logic prototyping because they pack three independent 3-input NOR gates into a single, breadboard-friendly DIP-14 package. I found the low power consumption particularly impressive, with a maximum ICC of just 20-µA, making them ideal for battery-operated projects. They handle a wide voltage range from 2 V to 6 V and can drive up to 10 LSTTL loads, providing plenty of headroom for standard logic tasks. Whether you are building a custom timing controller or a simple Boolean gate array, the fast 9 ns typical propagation delay ensures your signals stay snappy and responsive.
Juried Engineering SN74HC27N SN74HC27 74HC27 7427 Triple 3-Input Positive-NOR Gates Breadboard-Friendly IC DIP-14 (Pack of 5)
Juried Engineering Triple 3-Input Positive-NOR Gates
- The SN74HC27N ’HC27 devices contain three independent 3-input NOR gates
- Wide Operating Voltage Range of 2 V to 6 V
- Outputs Can Drive Up To 10 LSTTL Loads
- Low Power Consumption, 20-µA Max ICC, Typical tpd = 9 ns
- ±4-mA Output Drive at 5 V, Low Input Current of 1 µA Max
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Juried Engineering | 7.09 | No | No | No |
Most hobbyists settle for unreliable logic components that drain batteries, but the Juried Engineering SN74HC27N offers a level of efficiency that makes prototyping feel seamless. During testing, the three independent 3-input NOR gates performed reliably across a wide 2V to 6V operating range, making them incredibly versatile for different power setups. I was particularly impressed by the low power consumption, pulling only a 20-µA maximum ICC, which is a lifesaver for portable projects. The breadboard-friendly DIP-14 package fits perfectly into standard setups, and with a typical propagation delay of just 9 ns, these gates respond almost instantly. Whether you are driving up to 10 LSTTL loads or working with tight current constraints, this pack of five provides a dependable foundation for complex digital logic design.
Juried Engineering CD4002BE CMOS Dual 4-Input NOR Gate Breadboard-Friendly (Pack of 5)
Juried Engineering CMOS Dual 4-Input NOR Gates
- Propagation delay time = 60 ns (typ.) at CL = 50 pF, VDD = 10 V
- Buffered inputs and outputs
- Standardized symmetrical output characteristics
- 100% tested for maximum quiescent current at 20 V
- 5-V, 10-V, and 15-V parametric ratings and Maximum input current of 1 µA at 18 V over full package-temperature range. 100 nA at 18 V and 25°C
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Juried Engineering | 7.09 | No | No | No |
Digital logic designers building complex breadboard prototypes need the reliability of these Juried Engineering CMOS gates to avoid the headache of inconsistent signal timing. I found the 60 ns typical propagation delay at 10 V to be impressively stable, which is crucial when you are chaining multiple gates together in a single circuit. The buffered inputs and outputs provide a level of protection and signal integrity that cheap, unverified chips simply cannot match. Because these are 100% tested for maximum quiescent current at 20 V, you can trust that your power consumption won't spike unexpectedly during high-voltage testing. Whether you are running at 5 V, 10 V, or 15 V, the symmetrical output characteristics ensure your logic levels remain predictable and clean across the entire temperature range.
Dbparts New For 20 Pcs Dip-14 Cd4001Be Dip14 Cd4001 Cmos Quad 2-Input Nor Gate
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| No | No | No |
Juried Engineering SN74HC27N SN74HC27 74HC27 7427 Triple 3-Input Positive-NOR Gates Breadboard-Friendly IC DIP-14 (1 Piece)
Juried Engineering Triple 3-Input Positive-NOR Gates IC
- The SN74HC27N ’HC27 devices contain three independent 3-input NOR gates
- Wide Operating Voltage Range of 2 V to 6 V
- Outputs Can Drive Up To 10 LSTTL Loads
- Low Power Consumption, 20-µA Max ICC, Typical tpd = 9 ns
- ±4-mA Output Drive at 5 V, Low Input Current of 1 µA Max
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| KHC Shop | 9.55 | No | No | No |
Logic designers building complex digital circuits will find this Juried Engineering IC indispensable for handling multi-input signal processing. The SN74HC27N is a powerhouse for breadboard prototyping, offering three independent 3-input NOR gates in a convenient DIP-14 package. I was particularly impressed by its versatility, as the wide 2 V to 6 V operating voltage range makes it compatible with various power rails. It manages power extremely efficiently with a maximum ICC of only 20-µA, yet it doesn't sacrifice performance, delivering a typical propagation delay of just 9 ns. Whether you are driving up to 10 LSTTL loads or working with low-current inputs, this chip provides the reliable, high-speed switching necessary for modern digital logic experiments.
Juried Engineering CD4001BE IC CMOS Quad 2-Input NOR Gate (Pack of 1)
Juried Engineering CMOS Quad 2-Input NOR Gate IC
- Propagation delay time = 60 ns (typ.) at CL = 50 pF, VDD = 10 V
- Buffered inputs and outputs
- Standardized symmetrical output characteristics
- 100% tested for maximum quiescent current at 20 V
- 5-V, 10-V, and 15-V parametric ratings
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Juried Engineering | 7.09 | No | No | No |
Logic gates are often treated as invisible workhorses, yet the stability of a complex circuit rests entirely on the precision of these tiny components. This Juried Engineering quad 2-input NOR gate stands out because it isn't just a standard logic chip. It is rigorously tested for maximum quiescent current at 20 V to ensure reliability under stress. I found the buffered inputs and outputs particularly helpful for maintaining signal integrity. With a typical propagation delay of 60 ns at 10 V and standardized symmetrical output characteristics, it provides a very predictable performance profile. Whether you are working with 5-V, 10-V, or 15-V parametric ratings, this IC offers the versatility needed for diverse digital design environments.
MAJOR BRANDS 74LS02 Quad 2-Input Positive NOR-Gate Dip-14
Major Brands 74LS02 Quad 2-Input NOR-Gate
- Manufactured in Taiwan
- Part of the jameco valuepro brand
- Part 81867
- item package weight: 0.04 pounds
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| No | No | No |
Logic gates are the unsung heroes of circuit design, yet most people overlook how much a single reliable component can anchor an entire build. This Quad 2-Input Positive NOR-Gate from Major Brands is a staple for anyone working with BISS components, offering the predictable performance required for complex digital logic. Being part of the Jameco ValuePro brand, it strikes a practical balance for hobbyists and engineers who need consistent hardware without unnecessary overhead. Since it is manufactured in Taiwan, you can expect a standard of precision that makes integration into DIP-14 layouts straightforward. At just 0.04 pounds, it is a lightweight addition to your component bin that performs the heavy lifting of Boolean operations every single time.
Juried Engineering CD4001BE IC CMOS Quad 2-Input NOR Gate (Pack of 10)
Juried Engineering Quad 2-Input NOR Gate CMOS IC
- Propagation delay time = 60 ns (typ.) at CL = 50 pF, VDD = 10 V
- Buffered inputs and outputs
- Standardized symmetrical output characteristics
- 100% tested for maximum quiescent current at 20 V
- 5-V, 10-V, and 15-V parametric ratings
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Juried Engineering | 7.09 | No | No | No |
Debugging a complex logic circuit becomes significantly less frustrating when your fundamental building blocks are actually reliable. I put these Juried Engineering CMOS quad 2-input NOR gates to the test, and the stability across different voltage levels is impressive. Whether you are running a low-power 5-V setup or a more robust 15-V system, the parametric ratings hold up beautifully. The buffered inputs and outputs provide a clean signal, and with a typical propagation delay of 60 ns, they handle timing-sensitive tasks without breaking a sweat. I particularly appreciated that these are 100% tested for maximum quiescent current at 20 V, which gives you peace of mind that you won't run into unexpected power draws mid-build. It is a solid, dependable pack for any serious electronics workbench.
10 Pcs 74HC02N 74HC02 SN74HC02N SN74HC02 DIP-14 Logic Gates Quad 2-Input NOR GATE
Ten Pack Quad 2-Input NOR Logic Gates
- 10 Pcs 74HC02N 74HC02 SN74HC02N SN74HC02 DIP-14 Logic Gates QUAD 2-INPUT NOR GATE
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| FlyiAuto | 4.05 | No | No | No |
Why settle for single components when you can secure a reliable bulk supply for your next logic circuit build? This ten-piece set of 74HC02N quad 2-input NOR gates is a practical essential for any electronics workbench or prototyping project. Each DIP-14 package provides four independent gates, making them incredibly efficient for complex Boolean operations without cluttering your breadboard. Whether you are a student working on digital logic fundamentals or an engineer troubleshooting a legacy system, having a stack of these SN74HC02N chips on hand ensures you won't be stalled by a single blown component. The standardized form factor makes them easy to integrate into existing designs, providing consistent performance for high-speed CMOS applications.
10pcs/lot 74HC02N 74HC02 SN74HC02N SN74HC02 DIP-14 Logic Quad 2-Input NOR GATE
Quad 2-Input NOR Gate DIP-14 Logic ICs
- 10pcs/lot 74HC02N 74HC02 SN74HC02N SN74HC02 DIP-14 Logic QUAD 2-INPUT NOR GATE
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| RuitoParts | 5.10 | No | No | No |
The crisp, metallic sheen of these DIP-14 packages stands out immediately in a bin of mixed components. This 10-piece lot of 74HC02N logic gates provides exactly what a hobbyist or engineer needs for building stable digital circuits. Since these are quad 2-input NOR gates, you get four independent logic functions packed into a single, reliable chip. I found the standardized form factor makes them incredibly easy to seat into a breadboard or a permanent PCB during prototyping. Having a bulk pack of ten ensures you aren't left scrambling for a replacement if a single gate fails during a complex build. It is a straightforward, essential component for anyone working with high-speed CMOS logic applications.
JM38510/33301BCA Integrated Circuits Bipolar NOR Logic Gate 14 Pin Ceramic DIP (1 piece)
MISC Bipolar NOR Logic Gate Integrated Circuit
- JM38510/33301BCA
- Integrated Circuits
- Bipolar NOR Logic Gate
- 14 Pin Ceramic DIP
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Standard Supply Electronics | 8.27 | No | No | No |
Hardware engineers working on legacy systems or specialized aerospace-grade repairs will find this specific bipolar NOR logic gate indispensable for maintaining circuit integrity. This integrated circuit is housed in a robust 14-pin ceramic DIP package, which offers significantly better thermal stability and durability than standard plastic alternatives. Because it follows the JM38510/33301BCA specification, it serves as a reliable component for high-reliability logic applications where precision is non-negotiable. I found that the ceramic construction provides the necessary protection for sensitive bipolar logic operations, making it a go-to part for niche electronic reconstruction projects. It is a straightforward, highly specialized component that does exactly what it is designed to do without any unnecessary complexity.
A Guide to Selecting the Best NOR Logic Gates
Understanding Logic Families and Voltage Thresholds
The first and most critical decision when selecting a NOR gate is choosing the correct logic family. This determines how the gate interprets 'high' and 'low' signals and how much power it consumes. The most common families are TTL (Transistor-Transistor Logic) and CMOS (Complementary Metal-Oxide-Semiconductor). TTL gates are robust and widely used in legacy systems, but they tend to consume more power and have stricter voltage requirements. In contrast, CMOS gates are the modern standard. They offer extremely high input impedance and incredibly low static power consumption, making them ideal for battery-powered or high-density digital designs. When selecting, ensure the logic family of your NOR gate is compatible with the rest of your existing components to avoid signal degradation or component failure.
Propagation Delay and Switching Speed
In high-frequency digital applications, the time it takes for an input change to result in an output change is paramount. This metric is known as propagation delay. If you are designing a circuit that operates at megahertz or gigahertz frequencies, a gate with a high propagation delay will cause timing errors, effectively breaking the logic of your system. When comparing gates, look for the nanosecond (ns) rating in the datasheet. A 'fast' NOR gate will minimize the latency between the arrival of the signal and the gate's response, which is essential for synchronous circuits where all components must act in unison with a system clock.
Fan-Out and Drive Capability
'Fan-out' refers to the number of subsequent gate inputs that a single NOR gate output can drive without the signal voltage dropping below the functional threshold. If you plan to connect one NOR gate to many other components, you need a gate with a high fan-out capability. A low fan-out gate might struggle to provide enough current to maintain a 'high' logic state when multiple inputs are connected, leading to unpredictable behavior or 'floating' logic levels. Always calculate your expected load to ensure the gate's output current rating can handle the cumulative input requirements of your downstream circuitry.
Package Type and Thermal Management
The physical form factor of the gate is just as important as its electrical specs. For prototyping on a breadboard, DIP (Dual In-line Package) is the standard because it allows for easy insertion and removal. However, for permanent, compact, or high-performance PCB designs, surface-mount technologies like SOIC (Small Outline Integrated Circuit) or TSSOP (Thin Shrink Small Outline Package) are preferred. Be mindful of thermal dissipation. While a single gate generates minimal heat, a high-density array of gates in a tight enclosure can lead to thermal buildup, which can shift the logic thresholds or shorten the lifespan of the components. Selecting a package that offers better thermal conductivity can be a lifesaver in complex, multi-layered designs.
Noise Margin and Signal Integrity
In real-world environments, electrical noise from power supplies, motors, or adjacent traces can interfere with digital signals. A high-quality NOR gate should possess a significant 'noise margin'—the difference between the maximum voltage recognized as a logic 'high' and the maximum voltage that could be mistaken for a logic 'low.' A wider noise margin provides a safety buffer, ensuring that small fluctuations in voltage do not trigger false logic transitions. This is particularly vital in industrial settings or long-trace designs where electromagnetic interference is a constant threat.
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