MC74HC126AN

Product Overview

• Category: Integrated Circuit
• Use: Logic Gate Buffer/Driver
• Characteristics: High-Speed, CMOS Technology
• Package: DIP (Dual In-line Package)
• Essence: Quad Bus Buffer with 3-State Outputs
• Packaging/Quantity: Tube/25 pieces per tube

Specifications

• Supply Voltage: 2V to 6V
• Input Voltage: 0V to VCC
• Output Voltage: 0V to VCC
• Operating Temperature: -40°C to +85°C
• Propagation Delay: 9 ns (typical)
• Output Current: ±6 mA

Pin Configuration

The MC74HC126AN has a total of 14 pins. The pin configuration is as follows:

1. 1A - Input 1 for buffer A
2. 1Y - Output 1 for buffer A
3. 2A - Input 2 for buffer B
4. 2Y - Output 2 for buffer B
5. 3A - Input 3 for buffer C
6. 3Y - Output 3 for buffer C
7. GND - Ground
8. 4Y - Output 4 for buffer D
9. 4A - Input 4 for buffer D
10. OE - Output Enable
11. VCC - Supply Voltage
12. 4B - Input 4 for buffer D
13. 3B - Input 3 for buffer C
14. 2B - Input 2 for buffer B

Functional Features

• Quad bus buffer with 3-state outputs
• High-speed operation due to CMOS technology
• Buffered inputs and outputs for improved signal integrity
• Output enable (OE) pin for controlling the outputs
• Wide operating voltage range (2V to 6V)
• Low power consumption

Advantages and Disadvantages

Advantages

• High-speed operation allows for efficient data transfer
• CMOS technology provides low power consumption
• Buffered inputs and outputs enhance signal integrity
• Output enable pin offers control over the outputs
• Wide operating voltage range allows for versatile applications

Disadvantages

• Limited output current capacity (±6 mA)
• Propagation delay of 9 ns may not be suitable for ultra-high-speed applications

Working Principles

The MC74HC126AN is a quad bus buffer with 3-state outputs. It operates using CMOS technology, which ensures high-speed performance and low power consumption. The buffered inputs and outputs help maintain signal integrity during data transfer. The output enable (OE) pin allows the user to control the outputs, enabling or disabling them as needed. The wide operating voltage range makes it compatible with various systems.

Detailed Application Field Plans

The MC74HC126AN can be used in various applications, including:

1. Microprocessor-based systems
2. Data communication systems
3. Industrial automation
4. Automotive electronics
5. Consumer electronics
6. Robotics
7. Instrumentation

Its ability to buffer signals and provide 3-state outputs makes it suitable for applications where multiple devices need to share a common bus.

Detailed and Complete Alternative Models

Some alternative models that offer similar functionality to the MC74HC126AN are:

1. SN74HC126N by Texas Instruments
2. CD74HC126E by Texas Instruments
3. 74HCT126 by NXP Semiconductors
4. 74LS126 by Fairchild Semiconductor
5. 74ACT126 by ON Semiconductor

These alternatives can be considered based on specific requirements, availability, and pricing considerations.

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