SN7400D

Product Overview

Category

SN7400D belongs to the category of integrated circuits (ICs).

Use

It is commonly used in digital logic circuits for various applications.

Characteristics

• SN7400D is a quad 2-input NAND gate.
• It operates on a supply voltage range of 4.5V to 5.5V.
• The gate has a maximum propagation delay of 15 ns.
• It is designed to work in a wide temperature range, typically from -40°C to 85°C.

Package

SN7400D is available in a 14-pin dual in-line package (DIP).

Essence

The essence of SN7400D lies in its ability to perform logical operations using NAND gates, which are fundamental building blocks in digital circuit design.

Packaging/Quantity

SN7400D is typically sold in reels or tubes containing multiple units. The exact quantity may vary depending on the supplier.

Specifications

• Supply Voltage Range: 4.5V to 5.5V
• Input Voltage Range: 0V to Vcc
• Output Voltage Range: 0V to Vcc
• Maximum Propagation Delay: 15 ns
• Operating Temperature Range: -40°C to 85°C

Detailed Pin Configuration

SN7400D has a total of 14 pins, numbered 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

• SN7400D consists of four independent 2-input NAND gates.
• Each gate can perform logical NAND operations on two input signals.
• The outputs are active-low, meaning they are inverted versions of the logical NAND results.

Advantages and Disadvantages

Advantages

• Compact integration of four NAND gates in a single package.
• Wide operating temperature range allows for versatile applications.
• Low propagation delay enables high-speed digital circuit designs.

Disadvantages

• Limited to performing only NAND operations.
• Requires external components for complex logic functions.

Working Principles

SN7400D operates based on the principles of digital logic. Each NAND gate within the IC receives two input signals and produces an output based on the logical NAND operation. The inputs and outputs are connected internally according to the pin configuration.

Detailed Application Field Plans

SN7400D finds applications in various digital systems, including but not limited to: - Arithmetic circuits - Memory units - Control systems - Data processing units - Communication devices

Detailed and Complete Alternative Models

Some alternative models to SN7400D that serve similar purposes include: - SN74LS00: Low-power Schottky version with improved power efficiency. - SN74HC00: High-speed CMOS version with increased operating frequency. - SN74ACT00: Advanced CMOS version with enhanced noise immunity.

These alternatives offer different characteristics and performance specifications, allowing designers to choose the most suitable option for their specific requirements.

In conclusion, SN7400D is a quad 2-input NAND gate integrated circuit used in digital logic circuits. Its compact design, wide operating temperature range, and low propagation delay make it a versatile choice for various applications. However, its limited functionality and reliance on external components for complex logic functions are notable disadvantages. Designers can consider alternative models such as SN74LS00, SN74HC00, and SN74ACT00 to meet specific requirements.