The 74HC86 XOR (Exclusive OR) Logic Gate is an essential and powerful integrated circuit (IC) that holds a crucial position in digital logic circuits. Its primary purpose is to execute the XOR operation, yielding a HIGH output exclusively when the count of HIGH inputs is odd. This versatile IC is designed to facilitate a wide range of applications in digital systems, the 7486 Quad 2-input Exclusive-OR CMOS Gate IC serves as a quad 2-input XOR gate, housing four XOR gates, each with two inputs. This feature-packed IC enables efficient XOR operations in various digital circuits, making it a reliable choice for engineers, hobbyists, and educators seeking to optimize their digital logic designs. Explore the potential of XOR logic and elevate your digital projects with the exceptional capabilities of the 74HC86 XOR Logic Gate.

 

Package Includes:

• 1 x 74HC86 XOR (Exclusive OR) Logic Gate

 

Features:

• Exclusive OR Operation: The 74HC86 performs the exclusive OR operation, a fundamental logic function used in many digital circuits for decision-making and data processing.
• Four Independent Gates: The IC contains four independent XOR gates in a single package, allowing for multiple XOR operations in a compact form factor.
• High-Speed Performance: With its advanced semiconductor technology, the 74HC86 offers high-speed performance, enabling efficient and rapid digital computations.
• Wide Voltage Range: The IC operates within a wide voltage range, making it suitable for various digital systems and applications.
• Input and Output Compatibility: The IC is compatible with standard TTL (Transistor-Transistor Logic) and CMOS (Complementary Metal-Oxide-Semiconductor) logic levels, ensuring seamless integration with other digital components.
• CMOS Technology: Built with CMOS (Complementary Metal-Oxide-Semiconductor) technology, the IC delivers high-speed performance and low power consumption.
• Input Compatibility: The IC is compatible with standard TTL (Transistor-Transistor Logic) and CMOS logic levels, ensuring seamless integration with other digital components.
• Low Power Consumption: The 74HC86 is designed for energy efficiency, consuming minimal power during operation.
• Versatile Applications: This XOR gate finds applications in digital systems, arithmetic circuits, data processing, encryption algorithms, error detection, and much more.
• Reliable Performance: The IC provides accurate and reliable outputs, ensuring the stability and correctness of digital operations.

 

Description:

The 74HC86 XOR (Exclusive OR) Logic Gate is a powerful and versatile integrated circuit (IC) that plays a fundamental and crucial role in digital logic circuits. It is specifically designed to perform the XOR operation, which is an essential binary logic function. The XOR gate outputs a HIGH signal when the number of HIGH inputs is odd, and a LOW signal when the number of HIGH inputs is even. The IC is commonly used as a quad 2-input XOR gate, meaning it contains four individual XOR gates, each with two input pins. This configuration allows the IC to process multiple XOR operations simultaneously, making it highly efficient for complex digital computations. The 74HC86 IC operates within the CMOS (Complementary Metal-Oxide-Semiconductor) technology, providing high-speed performance and low power consumption. Its wide operating voltage range and compatibility with standard TTL (Transistor-Transistor Logic) and CMOS logic levels make it suitable for various digital systems and applications. This versatile IC finds applications in a multitude of digital circuits, including arithmetic circuits, data processing, encryption algorithms, error detection, digital communications, and much more. It is also commonly used in digital design education to teach fundamental concepts of digital logic and circuit design. As a reliable and widely accessible component, the 74HC86 XOR Logic Gate empowers engineers, hobbyists, and educators to create innovative digital systems with accurate and reliable XOR operations. Whether you're exploring XOR logic principles or designing sophisticated digital circuits, the 74HC86 XOR Logic Gate is a valuable addition to your electronic toolkit. Embrace the power of XOR logic and experience the limitless possibilities this IC has to offer in the world of digital electronics.

 

Principle of Work:

The 74HC86 XOR (Exclusive OR) Logic Gate operates based on a combination of multiplication, addition, and inverting inputs. The Boolean expression for the output of the XOR gate is given as A.B ̅ + (A) ̅.B or (A + B).(A ̅ + B ̅). It can also be represented as (A XOR B) or (A ⊕ B).

The XOR gate takes two inputs, A and B, and produces an output, Z. The output is '1' (logic HIGH) when the inputs A and B are different (exclusive OR), and '0' (logic LOW) when the inputs are the same. In other words, the XOR gate outputs a '1' when either A or B is HIGH, but not both.

The truth table for the XOR gate is as follows:

Input A	Input B	Output Z
0	0	0
0	1	1
1	0	1
1	1	0

The XOR gate can be represented as a combination of AND, OR, and NOT gates. Its equivalent circ

 

Pinout of the Module:

 

1. Input Pin 1 (A1): This is the first input pin for the first XOR gate.
2. Input Pin 2 (B1): This is the second input pin for the first XOR gate.
3. Output Pin 1 (Y1): This is the output pin for the first XOR gate.
4. Input Pin 3 (A2): This is the first input pin for the second XOR gate.
5. Input Pin 4 (B2): This is the second input pin for the second XOR gate.
6. Output Pin 2 (Y2): This is the output pin for the second XOR gate.
7. GND (Ground): This is the ground connection pin.
8. Input Pin 5 (A3): This is the first input pin for the third XOR gate.
9. Input Pin 6 (B3): This is the second input pin for the third XOR gate.
10. Output Pin 3 (Y3): This is the output pin for the third XOR gate.
11. Input Pin 7 (A4): This is the first input pin for the fourth XOR gate.
12. Input Pin 8 (B4): This is the second input pin for the fourth XOR gate.
13. Output Pin 4 (Y4): This is the output pin for the fourth XOR gate.
14. VCC: This is the positive power supply pin.

 

Applications:

1. Digital Arithmetic: The XOR gate is commonly used in digital arithmetic circuits, such as adders and subtractors.
2. Data Processing: The IC is used in data processing systems for data comparison, data validation, and error detection.
3. Error Detection: The XOR gate is vital in error detection circuits, including checksum generation and error correction codes.
4. Encryption and Decryption: XOR gates are utilized in cryptographic algorithms and encryption/decryption circuits.
5. Digital Communications: In communication systems, the IC helps in data encoding and decoding.
6. Switching Circuits: XOR gates are utilized in switching circuits, such as flip-flops and multiplexers.
7. Parity Bit Generation: The IC is used to generate parity bits in digital communication and storage systems.
8. Frequency Division: XOR gates play a role in frequency division circuits, counters, and dividers.
9. Electronic Locks: The IC can be used in electronic lock systems for secure access control.
10. Signal Processing: XOR gates are used in signal processing applications, such as digital filters and waveform generators.
11. Logic Level Conversion: The IC can be used to perform logic level conversions between different voltage standards.
12. Robotics and Automation: XOR gates are used in robot control and automation circuits.
13. Data Transmission: The IC is utilized in data transmission circuits, including Manchester encoding and decoding.
14. Comparators: XOR gates are used as comparators to compare digital signals.
15. Sensor Interface: The IC can be used in sensor interface circuits for signal processing and threshold detection.

 

Circuit:

You can use the last circuit to experiment with the IC and also you can go to this Link to simulate the same cirucit.

 

 

Technical Details:

• Supply Voltage: 2V to 6V
• Logic Family: HC (High-Speed CMOS)
• Number of Gates: 4 XOR gates
• Number of Inputs per Gate: 2 (A and B)
• Number of Outputs per Gate: 1 (Y)
• Propagation Delay: Typically 6.5 nanoseconds (ns) at 5V supply and 25°C temperature
• Power Dissipation: Low power dissipation
• Package Type: Available in various packages such as DIP (Dual In-line Package) and SOIC (Small Outline Integrated Circuit)
• Temperature Range: -40°C to 85°C
• Pin Configuration: 14 pins for the four XOR gates (inputs A and B, output Y)
• Compatibility: Compatible with standard TTL (Transistor-Transistor Logic) and CMOS (Complementary Metal-Oxide-Semiconductor) logic levels

 

Resources:

• Datasheet

 

Comparisons:

The 74HC86 and 74LS86 are both XOR (Exclusive OR) gate ICs, but they belong to different logic families, which means they have some differences in their operating characteristics:

1. Logic Family:

• 74HC86: Part of the HC (High-Speed CMOS) logic family. It operates at high speed with CMOS technology, offering low power consumption and wide voltage range compatibility.
• 74LS86: Part of the LS (Low-Power Schottky TTL) logic family. It uses low-power Schottky TTL technology and operates at a higher speed than standard TTL logic.

2. Speed:

• 74HC86: The HC family generally offers higher speed performance compared to the LS family. The 74HC86 has relatively faster propagation delay times.
• 74LS86: The LS family is known for its faster switching times compared to standard TTL logic, making the 74LS86 slightly faster than the 74HC86.

3. Power Consumption:

• 74HC86: CMOS technology used in the HC family results in lower power consumption, making it more energy-efficient.
• 74LS86: The LS family uses low-power Schottky TTL technology, which contributes to lower power consumption compared to standard TTL logic.

4. Voltage Compatibility:

• 74HC86: Compatible with a wide voltage range from 2V to 6V, making it suitable for various digital systems and applications.
• 74LS86: Compatible with standard TTL voltage levels, typically operating at 5V.

5. Input Compatibility:

• 74HC86: Compatible with both standard TTL (5V) and CMOS (3.3V/5V) logic levels, providing versatile input compatibility.
• 74LS86: Designed for standard TTL (5V) input levels.