SN74HC21QDRG4Q1

Product Overview

• Category: Integrated Circuit
• Use: Logic Gate
• Characteristics: Dual 4-input AND Gate
• Package: SOIC (Small Outline Integrated Circuit)
• Essence: High-Speed CMOS Logic
• Packaging/Quantity: Tape and Reel, 2500 pieces per reel

Specifications

• Supply Voltage Range: 2V to 6V
• Input Voltage Range: 0V to VCC
• Output Voltage Range: 0V to VCC
• Operating Temperature Range: -40°C to +125°C
• Propagation Delay: 9 ns (typical)
• Maximum Quiescent Current: 1 µA
• Maximum Operating Frequency: 50 MHz

Detailed Pin Configuration

The SN74HC21QDRG4Q1 has a total of 14 pins. The pin configuration is as follows:

1. A1 (Input A1)
2. B1 (Input B1)
3. Y1 (Output Y1)
4. A2 (Input A2)
5. B2 (Input B2)
6. Y2 (Output Y2)
7. GND (Ground)
8. Y3 (Output Y3)
9. B3 (Input B3)
10. A3 (Input A3)
11. Y4 (Output Y4)
12. B4 (Input B4)
13. A4 (Input A4)
14. VCC (Supply Voltage)

Functional Features

• Dual 4-input AND gate with independent inputs and outputs.
• High-speed operation suitable for various applications.
• Compatible with TTL (Transistor-Transistor Logic) and CMOS (Complementary Metal-Oxide-Semiconductor) logic levels.
• Low power consumption.
• Schmitt-trigger input allows for noisy input signal tolerance.

Advantages and Disadvantages

Advantages: - High-speed operation enables efficient processing. - Compatibility with TTL and CMOS logic levels allows for easy integration into existing systems. - Low power consumption helps in reducing overall energy usage. - Schmitt-trigger input ensures reliable operation even in the presence of noise.

Disadvantages: - Limited number of inputs (4 per gate). - Not suitable for applications requiring a large number of inputs or complex logic operations.

Working Principles

The SN74HC21QDRG4Q1 is a dual 4-input AND gate. It performs the logical AND operation on its four input signals (A1, B1, A2, B2) and produces the corresponding output signals (Y1, Y2). The gate operates based on the principles of CMOS logic, where transistors are used to control the flow of current through different paths to achieve the desired logical function.

Detailed Application Field Plans

The SN74HC21QDRG4Q1 can be used in various applications that require logical AND operations. Some potential application fields include:

1. Digital circuit design: The gate can be used to implement logical functions in digital circuits such as microcontrollers, processors, and memory units.
2. Communication systems: It can be utilized in communication systems for signal processing, error detection, and data filtering.
3. Industrial automation: The gate can be integrated into control systems for logical decision-making and process control.
4. Automotive electronics: It finds applications in automotive systems for signal conditioning, sensor interfacing, and safety control.

Detailed and Complete Alternative Models

1. SN74HC08QDRG4Q1: Quad 2-input AND Gate
2. SN74HC32QDRG4Q1: Quad 2-input OR Gate
3. SN74HC86QDRG4Q1: Quad 2-input XOR Gate
4. SN74HC00QDRG4Q1: Quad 2-input NAND Gate
5. SN74HC02QDRG4Q1: Quad 2-input NOR Gate

These alternative models provide similar functionality to the SN74HC21QDRG4Q1 and can be used as substitutes depending on specific requirements.

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