SN74AS20DRE4

Product Overview

• Category: Integrated Circuit (IC)
• Use: Logic Gates
• Characteristics: Dual 4-input NAND Gate
• Package: SOIC (Small Outline Integrated Circuit)
• Essence: High-speed CMOS technology
• Packaging/Quantity: Tape and Reel, 2500 units per reel

Specifications

• Supply Voltage Range: 4.5V to 5.5V
• Input Voltage Range: 0V to VCC
• Output Voltage Range: 0V to VCC
• Operating Temperature Range: -40°C to +85°C
• Propagation Delay Time: 9ns (typical)
• High-Level Output Current: -0.4mA (max)
• Low-Level Output Current: 8mA (max)

Detailed Pin Configuration

The SN74AS20DRE4 has a total of 14 pins. The pin configuration is as follows:

1. Pin 1: Input A1
2. Pin 2: Input B1
3. Pin 3: Output Y1
4. Pin 4: Ground (GND)
5. Pin 5: Input A2
6. Pin 6: Input B2
7. Pin 7: Output Y2
8. Pin 8: VCC (+5V)
9. Pin 9: Input C1
10. Pin 10: Input D1
11. Pin 11: Output Z1
12. Pin 12: Input C2
13. Pin 13: Input D2
14. Pin 14: Output Z2

Functional Features

• Dual 4-input NAND gate with Schmitt-trigger inputs
• High-speed operation due to advanced CMOS technology
• Wide supply voltage range allows compatibility with various systems
• Schmitt-trigger inputs provide hysteresis for improved noise immunity
• TTL-compatible inputs and outputs

Advantages and Disadvantages

Advantages: - High-speed operation enables efficient data processing - Wide supply voltage range allows compatibility with different power sources - Schmitt-trigger inputs enhance noise immunity, ensuring reliable performance - Compact SOIC package saves board space

Disadvantages: - Limited number of inputs may restrict complex logic operations - Propagation delay time may affect timing-sensitive applications

Working Principles

The SN74AS20DRE4 is a dual 4-input NAND gate that utilizes high-speed CMOS technology. It operates by performing logical NAND operations on the four input signals. The Schmitt-trigger inputs ensure stable and accurate switching even in the presence of noise or signal fluctuations. The output signals are TTL-compatible, making it suitable for integration into various digital systems.

Detailed Application Field Plans

The SN74AS20DRE4 can be used in a wide range of applications, including but not limited to: - Digital logic circuits - Data processing systems - Microcontrollers and microprocessors - Communication equipment - Industrial automation - Consumer electronics

Detailed and Complete Alternative Models

1. SN74AS00: Quad 2-input NAND Gate
2. SN74AS02: Quad 2-input NOR Gate
3. SN74AS08: Quad 2-input AND Gate
4. SN74AS32: Quad 2-input OR Gate
5. SN74AS86: Quad 2-input XOR Gate

These alternative models offer similar functionality and characteristics to the SN74AS20DRE4 and can be considered as substitutes depending on specific requirements.

In conclusion, the SN74AS20DRE4 is a dual 4-input NAND gate IC that provides high-speed logic operations with excellent noise immunity. Its compact package and wide supply voltage range make it suitable for various digital applications.