CD74HC126EG4

Product Overview

• Category: Integrated Circuit
• Use: Logic Gate Buffer/Driver
• Characteristics: High-Speed, CMOS Technology
• Package: SOIC (Small Outline Integrated Circuit)
• Essence: Quad 3-State Non-Inverting Buffer
• Packaging/Quantity: Tape and Reel, 2500 pieces per reel

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: 9ns (typical)
• Output Current: ±6mA
• Input Capacitance: 3.5pF (typical)

Pin Configuration

The CD74HC126EG4 has a total of 14 pins arranged in a dual in-line package (DIP). The pin configuration is as follows:

1. 1A - Input 1 for Buffer A
2. 1Y - Output for Buffer A
3. GND - Ground
4. 2Y - Output for Buffer B
5. 2A - Input 2 for Buffer B
6. 3A - Input 3 for Buffer C
7. 3Y - Output for Buffer C
8. Vcc - Positive Power Supply
9. 4Y - Output for Buffer D
10. 4A - Input 4 for Buffer D
11. OE - Output Enable
12. NC - No Connection
13. NC - No Connection
14. GND - Ground

Functional Features

• Quad 3-state non-inverting buffer
• High-speed operation
• Compatible with CMOS logic levels
• Output can drive up to ±6mA
• Output can be disabled using the OE pin

Advantages and Disadvantages

Advantages

• High-speed operation allows for efficient data transfer
• CMOS technology provides low power consumption
• 3-state output allows for bus sharing and multiple device connections
• Wide operating voltage range (2V to 6V) offers flexibility in various applications

Disadvantages

• Limited output current may not be suitable for high-power applications
• Propagation delay of 9ns may cause timing issues in certain scenarios
• Not compatible with TTL logic levels

Working Principles

The CD74HC126EG4 is a quad 3-state non-inverting buffer that operates using CMOS technology. It takes input signals from four different sources and provides buffered outputs. The output can be enabled or disabled using the OE pin. When the OE pin is high, the outputs are active, and when it is low, the outputs are in a high-impedance state.

Detailed Application Field Plans

The CD74HC126EG4 is commonly used in various digital systems and electronic devices. Some of its application fields include:

1. Data communication systems
2. Microcontrollers and microprocessors
3. Memory interfaces
4. Industrial automation
5. Automotive electronics
6. Consumer electronics

Detailed and Complete Alternative Models

• SN74HC126N: DIP package, similar specifications
• MC74HC126AN: DIP package, similar specifications
• 74HCT126: DIP package, compatible with TTL logic levels

These alternative models offer similar functionality and can be used as replacements for the CD74HC126EG4 depending on specific requirements.

In conclusion, the CD74HC126EG4 is a versatile integrated circuit that serves as a quad 3-state non-inverting buffer. Its high-speed operation, compatibility with CMOS logic levels, and wide operating voltage range make it suitable for various digital systems and electronic devices. However, its limited output current and propagation delay should be considered when selecting this IC for specific applications.