Encyclopedia Entry: 74VHCT126BQ,115

Product Information Overview

• Category: Integrated Circuit (IC)
• Use: Logic Gate Buffer/Driver
• Characteristics: High-Speed CMOS, Quad Bus Buffer with 3-State Outputs
• Package: SOIC-14
• Essence: The 74VHCT126BQ,115 is a versatile logic gate buffer/driver that provides high-speed performance and 3-state outputs. It is commonly used in digital systems to amplify and buffer signals, ensuring proper signal integrity and driving capability.
• Packaging/Quantity: The 74VHCT126BQ,115 is typically packaged in reels or tubes, containing a specific quantity of ICs per package.

Specifications

• Supply Voltage: 2.0V to 5.5V
• Logic Family: VHCT
• Number of Inputs: 4
• Number of Outputs: 4
• Output Type: 3-State
• Propagation Delay Time: 6 ns (typical)
• Operating Temperature Range: -40°C to +125°C

Detailed Pin Configuration

The 74VHCT126BQ,115 IC has a total of 14 pins, which are assigned as follows:

1. Pin 1: Output Y1
2. Pin 2: Input A1
3. Pin 3: Enable (active low)
4. Pin 4: GND (Ground)
5. Pin 5: Input B1
6. Pin 6: Output Y2
7. Pin 7: Output Y3
8. Pin 8: VCC (Positive Power Supply)
9. Pin 9: Output Y4
10. Pin 10: Input A2
11. Pin 11: Enable (active low)
12. Pin 12: GND (Ground)
13. Pin 13: Input B2
14. Pin 14: Not Connected (NC)

Functional Features

• High-speed operation: The 74VHCT126BQ,115 is designed to operate at high speeds, making it suitable for applications that require fast signal propagation.
• 3-state outputs: The IC features 3-state outputs, allowing the user to control the output state (high impedance) when not actively driving the bus.
• Wide supply voltage range: With a supply voltage range of 2.0V to 5.5V, the IC can be used in various digital systems with different power requirements.
• Low power consumption: The VHCT logic family offers low power dissipation, making the IC energy-efficient.

Advantages and Disadvantages

Advantages: - High-speed performance - 3-state outputs for bus sharing - Wide supply voltage range - Low power consumption

Disadvantages: - Limited number of inputs and outputs (4 each) - Not suitable for applications requiring higher drive currents

Working Principles

The 74VHCT126BQ,115 operates based on complementary metal-oxide-semiconductor (CMOS) technology. It utilizes a combination of NMOS and PMOS transistors to achieve high-speed switching and low power consumption. The inputs are buffered and amplified to provide proper signal levels, while the 3-state outputs allow for bus sharing and prevent signal contention.

Detailed Application Field Plans

The 74VHCT126BQ,115 finds applications in various digital systems, including but not limited to: - Microcontrollers and microprocessors - Data communication systems - Memory interfaces - Industrial automation - Automotive electronics

Detailed and Complete Alternative Models

Some alternative models that offer similar functionality to the 74VHCT126BQ,115 are: - SN74LVC126A: Quad Bus Buffer with 3-State Outputs - MC74VHC126: High-Speed CMOS Quad Bus Buffer - CD74HCT126E: High-Speed CMOS Logic Quad Bus Buffer

These alternative models can be considered based on specific requirements and availability.

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