Logic Gate AND 74HC08
The 74HC08N is a quad 2-input AND CMOS Gate, integral for performing logical conjunction in digital circuits. It features four independent 2-input AND gates in a single package. The output of each gate is high only when both of its inputs are high.
Package Includes:
1 x 74HC08N IC
Features:
Quad 2-Input AND Gate: Contains four independent AND gates, enabling multiple logic operations in one package.
Digital Logic: Operates with binary inputs and outputs.
Standard CMOS Technology: Low power consumption and enhanced noise immunity.
Input Compatibility: Compatible with Standard CMOS outputs.
Built-in Pullup Resistors: No need for external pullups.
High-Speed Operation: Performs efficiently with rapid data processing.
Wide Voltage Range: Supports a range of voltages, ensuring versatility.
Pin Compatibility: Compatible with LS08, enabling easy replacement.
Cost-Effective: Optimizes logic operations while reducing components.
Low Quiescent Current: Power-efficient when inactive.
RoHS Compliant: Manufactured in line with environmental standards.
Description: The 74HC08N integrates four 2-input AND gates into a single IC, offering a compact and efficient solution for logic operations. It uses CMOS technology for low power consumption and noise immunity, ensuring robust performance even in noise-sensitive applications. The IC simplifies circuit design by incorporating pullup resistors on inputs, eliminating the need for additional components. Its high-speed operation and flexibility make it ideal for diverse digital circuits and applications, ranging from microprocessors to control circuits and beyond.
Principle of Work: Each of the 74HC08N’s gates performs the AND operation on its two inputs. The output is high only when both inputs are high, based on the truth table of the AND gate:
A1 | B1 | Y1
0 | 0 | 0
0 | 1 | 0
1 | 0 | 0
1 | 1 | 1
This logic is consistent across all four gates within the IC. You can connect these gates to form complex logic circuits tailored to your needs.
Pinout:
Pin 1: NC (No Connection)
Pin 2: IN1 (Input 1)
Pin 3: IN2 (Input 2)
Pin 4: NC (No Connection)
Pin 6: GND (Ground)
Pin 11: Y3 (Output 3)
Pin 12: Y2 (Output 2)
Applications:
Logic Gates: Fundamental building block in complex logic gate systems.
Microprocessors: Key in binary data processing and logical operations.
Memory Systems: Used in address decoding for efficient read/write operations.
Control Circuits: Implements decision-making logic.
Arithmetic Circuits: Facilitates binary mathematical operations.
Signal Processing: Combines multiple signals based on specific conditions.
Data Filtering and Multiplexing: Filters data and selects data inputs based on control signals.
Technical Details:
Supply Voltage: 2V to 6V
Operating Temperature: -40°C to +85°C
Propagation Delay: 10ns (typical) at 5V
Quiescent Current: 1μA (max)
Comparisons: The 74HC08N compares favorably with the 74LS08 in terms of speed, power consumption, and compatibility:
Speed & Propagation Delay: The 74HC08N is faster with a shorter propagation delay.
Power Efficiency: 74HC08N consumes less power due to its CMOS technology.
Input Compatibility: The 74HC08N is more flexible, compatible with both CMOS and TTL logic levels.
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