Electronics Components Distributor

74HC02 Quad 2-Input NOR Gate Guide
2024-11-16 704

The 74HC02 is prized in digital electronics for its reliable versatility as a quad 2-input NOR gate. This section delves into the characteristics and applications that make the 74HC02 valuable, catering to both basic understanding and advanced considerations in diverse scenarios. The discussion extends to related concepts involving complementary components: semiconductors, capacitors, resistors, and integrated circuits.

Catalog

1. 74HC02 Pin Configuration

2. CAD Design for 74HC02

3. 74HC02 Comprehensive Analysis

4. Characteristics of 74HC02

5. Technical Specifications

6. Comparable Components

7. 74HC02 Functional Schematic

8. Circuit Diagram for 74HC02

74HC02 Pin Configuration

74HC02 Pinout

CAD Design for 74HC02

74HC02 CAD Model

74HC02 Comprehensive Analysis

The 74HC02 is a quad 2-input NOR gate IC with built-in clamp diodes on its inputs, allowing it to interface with voltages above V_CC when used with current-limiting resistors. It operates over a 2V to 6V supply range, making it compatible with both TTL and CMOS logic levels. The 74HC02 is ideal for digital logic applications that require reliable NOR gate operations, flexible voltage interfacing, and efficient performance in low-power circuits.

Characteristics of 74HC02

Wide Range of Supply Voltage

The 74HC02 operates seamlessly with supply voltages ranging from 2.0V to 6.0V. This broad compatibility allows integration with a diverse set of circuit designs, accommodating devices that function on low-power batteries as well as intricate electronic systems. We find this flexibility useful when crafting products for varied environments.

Efficient Power Use

Being a CMOS device, the 74HC02 features reduced power consumption, enhancing the operational lifespan of battery-based devices and lowering energy expenditures in larger setups. In mobile and embedded applications, the drive toward power-efficient components is increasingly evident, aligning with broader ecological goals to minimize environmental impact.

Superior Noise Immunity

The 74HC02's capacity to ward off unwanted electrical interference ensures consistent operation even amidst high electromagnetic disturbances. This quality is to uphold signal integrity, especially in industrial environments or densely packed circuit boards where interference is an ongoing challenge.

Strong Latch-Up Defense

Demonstrating a latch-up current capability surpassing 100 mA based on JESD 78 standards, the 74HC02 showcases exceptional durability. Its ability to resist latch-up is instrumental in defending circuits from potential failures, thereby strengthening overall system reliability. This feature proves advantageous in contexts by reducing maintenance requirements and extending the lifespan of the devices.

Adherence to Logic Level Standards

Operating at the CMOS level, the 74HC02 contrasts with the TTL-aligned 74HCT02, both conforming to JEDEC standards. This distinction allows for adaptability to various logic standards, thereby easing integration into diverse digital circuit architectures. We find it straightforward to align these components with pre-existing hardware, resulting in improved compatibility and fewer design limitations.

Protection Against Electrostatic Discharge (ESD)

Equipped with ESD safeguards adhering to HBM and MM standards, the 74HC02 is well-shielded against static discharge incidents. This protection handling and installation, stages where static electricity could pose serious risks. By adhering to best practices in ESD management, we can decrease the likelihood of component damage and failure.

Flexible Packaging and Temperature Tolerance

With a variety of packaging options, the 74HC02 meets diverse application demands, showing adaptability in both space-limited and high-temperature settings. Its operational temperature span from -40°C to +125°C ensures reliability in extreme conditions, ranging from frigid outdoor settings to sweltering industrial environments. This adaptability is often for applications where maintaining consistent performance despite temperature variations is deemed requiredl.

Technical Specifications

The 74HC02 ideally operates within a supply voltage range spanning from 2V to 6V, fostering adaptability across numerous digital systems. With ease, it melds into current circuits due to this wide range. Similarly, the Nexperia USA Inc. 74HC02BQ,115 offers an equivalent voltage spectrum, emphasizing its broad applicability in varying technological contexts. Here are the specifications, attributes, parameters of the Nexperia USA Inc. 74HC02BQ,115.

Type	Parameter
Factory Lead Time	8 Weeks
Contact Plating	Gold
Mount	Surface Mount
Mounting Type	Surface Mount
Package / Case	14-VFQFN Exposed Pad
Number of Pins	14
Logic Level-High	1.5V ~ 4.2V
Logic Level-Low	0.5V ~ 1.8V
Operating Temperature	-40°C~125°C
Packaging	Tape & Reel (TR)
Series	74HC
Published	2013
JESD-609 Code	e4
Part Status	Active
Moisture Sensitivity Level (MSL)	1 (Unlimited)
Number of Terminations	14
Max Power Dissipation	500mW
Voltage - Supply	2V~6V
Terminal Position	DUAL
Number of Functions	4
Supply Voltage	5V
Terminal Pitch	0.5mm
Base Part Number	74HC02
Pin Count	14
Number of Outputs	1
Output Voltage	6V
Operating Supply Voltage	5V
Supply Voltage-Max (Vsup)	6V
Supply Voltage-Min (Vsup)	2V
Power Dissipation	500mW
Output Current	25mA
Propagation Delay	15 ns
Quiescent Current	2μA
Turn On Delay Time	7 ns
Family	HC/UH
Logic Function	NOR
Number of Inputs	2
Logic Type	NOR Gate
Number of Gates	4
Max Propagation Delay @ V, Max CL	15ns @ 6V, 50pF
Number of Input Lines	8
Length	3mm
Radiation Hardening	No
RoHS Status	ROHS3 Compliant
Lead Free	Lead Free

Comparable Components

Parameter	74HC02BQ,115	SN74HC02DBR	74HC02BQ-Q100,115	SN74HC02DE4	SN74HC02NSR
Manufacturer	Nexperia USA Inc.	Texas Instruments	Nexperia USA Inc.	Texas Instruments	Texas Instruments
Package / Case	14-VFQFN Exposed Pad	14-SOIC (0.209, 5.30mm)	14-SSOP (0.209, 5.30mm)	14-VFQFN Exposed Pad	SOIC
Number of Inputs	2	2	2	2	-
Number of Pins	14	14	14	14	14
Logic Function	NOR	NOR	NOR	NOR	NOR
Propagation Delay	15 ns	15 ns	15 ns	15 ns	15 ns
Supply Voltage	5 V	5 V	5 V	5 V	5 V
Quiescent Current	2 μA	2 μA	2 μA	2 μA	2 μA
Technology	CMOS	CMOS	CMOS	CMOS	CMOS

74HC02 Functional Schematic

74HC02 Block

Circuit Diagram for 74HC02

74HC02 Circuit

Datasheet PDF

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Frequently Asked Questions [FAQ]

1. What Role does the 74HC02 Gate Serve?

The 74HC02 consists of a quad 2-input NOR gate, designed for interfacing with voltages beyond VCC through the use of clamp diodes. This setup not only increases its flexibility but also highlights the adaptability of these gates in various electronic designs. The NOR gate plays a role in digital logic circuits, as evidenced by its widespread presence in numerous digital systems.

2. Who Holds the Rights to the 74HC02 Datasheet?

Fairchild Semiconductor owns the copyright to the datasheet, which serves informational purposes. The broad distribution of such documentation and comprehension in both educational and professional technology sectors.

3. When Was the SN54HC02 SCLS076G First Introduced?

The SN54HC02 SCLS076G was initially released in December 1982 and underwent revisions until December 2020. These updates exhibit the continuous evolution regarding its availability, warranty, and applications, keeping it pertinent and effective in changing technological environments.

4. What Defines a NAND Logic Gate?

A NAND gate exclusively provides a false output when all inputs are true; otherwise, it outputs a high signal if any input is low. This contrasts with an AND gate, illustrating a complexity that supports the core framework of many logic circuits by offering alternative routes for signal processing.

Originating from Sheffer's 1913 findings, the NAND operation forms a cornerstone of logic operations within modern integrated circuits and computers. It holds significance not only in models but also in this implementations that guide the integrity and logic of computational systems.

5. What is the Voltage Range for Operating a 74HC02 OR Gate Chip?

The 74HC series functions within a flexible voltage range of 2 to 6 volts, with input and output levels dependent on specific operating conditions. This versatility is mirrored across numerous applications, the role of these specifications in adapting to various operational contexts and boosting component efficiency.