MC74VHC126DR2G

Overview

• Category: Integrated Circuit (IC)
• Use: Logic Gate Buffer/Driver
• Characteristics: High-Speed, Low-Power, Quad Bus Buffer
• Package: SOIC-14
• Essence: Amplification and buffering of digital signals
• Packaging/Quantity: Tape & Reel, 2500 units per reel

Specifications

• Supply Voltage: 2.0V to 5.5V
• Input Voltage: -0.5V to VCC + 0.5V
• Output Voltage: -0.5V to VCC + 0.5V
• Operating Temperature: -40°C to +85°C
• Propagation Delay: 4.3ns (typical)
• Output Current: ±8mA
• Input Capacitance: 3pF (typical)

Pin Configuration

The MC74VHC126DR2G has a total of 14 pins, which are assigned as follows:

1. 1A (Input 1)
2. 1Y (Output 1)
3. GND (Ground)
4. 2A (Input 2)
5. 2Y (Output 2)
6. 3A (Input 3)
7. 3Y (Output 3)
8. 4A (Input 4)
9. 4Y (Output 4)
10. GND (Ground)
11. OE (Output Enable)
12. VCC (Power Supply)
13. NC (No Connection)
14. GND (Ground)

Functional Features

• Quad buffer with 3-state outputs
• High-speed operation
• Low power consumption
• Compatible with TTL and CMOS logic levels
• Output enable (OE) for easy control of output states
• Schmitt-trigger input for noise immunity

Advantages and Disadvantages

Advantages

• High-speed operation allows for efficient signal buffering
• Low power consumption makes it suitable for battery-powered devices
• 3-state outputs provide flexibility in controlling signal flow
• Wide supply voltage range enables compatibility with various systems
• Schmitt-trigger input ensures reliable operation in noisy environments

Disadvantages

• Limited output current may not be sufficient for certain applications requiring higher drive capabilities
• Propagation delay may introduce timing issues in time-critical circuits

Working Principles

The MC74VHC126DR2G is a quad buffer/driver IC that amplifies and buffers digital signals. It operates by receiving input signals through the A inputs and providing amplified outputs through the Y outputs. The output enable (OE) pin controls the state of the outputs, allowing them to be either active or in a high-impedance state.

The IC is designed to operate with a wide supply voltage range, making it compatible with various logic families such as TTL and CMOS. Its Schmitt-trigger input provides noise immunity, ensuring reliable operation even in environments with high levels of electrical noise.

Detailed Application Field Plans

The MC74VHC126DR2G can be used in a variety of applications, including:

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

In these applications, the IC can be utilized for signal buffering, level shifting, and driving capacitive loads. Its high-speed operation and low power consumption make it suitable for use in both high-performance and energy-efficient systems.

Detailed and Complete Alternative Models

1. SN74LVC126A: Quad Bus Buffer with 3-State Outputs
2. CD74HCT126E: High-Speed CMOS Logic Quad Buffer with 3-State Outputs
3. 74HC126: Quad Bus Buffer with 3-State Outputs

These alternative models offer similar functionality to the MC74VHC126DR2G and can be considered as replacements based on specific requirements and availability.

Word count: 497 words