74AHC125D,112

Product Overview

Category

The 74AHC125D,112 belongs to the category of integrated circuits (ICs).

Use

This IC is commonly used as a quad buffer/line driver with 3-state outputs.

Characteristics

• Quad buffer/line driver
• 3-state outputs
• High-speed CMOS technology
• Wide operating voltage range: 2 V to 5.5 V
• Low power consumption
• Schmitt-trigger action on all inputs

Package

The 74AHC125D,112 is available in a small outline package (SO) with 14 pins.

Essence

The essence of this product lies in its ability to provide buffering and line driving capabilities for digital signals, while also offering 3-state outputs for bus-oriented applications.

Packaging/Quantity

The 74AHC125D,112 is typically packaged in reels or tubes, with a quantity of 2500 units per reel/tube.

Specifications

• Supply voltage range: 2 V to 5.5 V
• Input voltage range: -0.5 V to VCC + 0.5 V
• Output voltage range: 0 V to VCC
• Operating temperature range: -40°C to +125°C
• Propagation delay: 6 ns (typical)
• Output current: ±8 mA

Detailed Pin Configuration

The 74AHC125D,112 has a total of 14 pins, which are assigned specific functions as follows:

1. 1OE - Output Enable Input for Channel 1
2. 1A - Data Input for Channel 1
3. 1Y - Buffered Output for Channel 1
4. GND - Ground
5. 2Y - Buffered Output for Channel 2
6. 2A - Data Input for Channel 2
7. 2OE - Output Enable Input for Channel 2
8. VCC - Positive Power Supply
9. 3OE - Output Enable Input for Channel 3
10. 3A - Data Input for Channel 3
11. 3Y - Buffered Output for Channel 3
12. NC - No Connection
13. 4Y - Buffered Output for Channel 4
14. 4A - Data Input for Channel 4

Functional Features

• Quad buffer/line driver: The IC can handle four independent data lines simultaneously.
• 3-state outputs: The outputs can be put into a high-impedance state, allowing multiple devices to share the same bus without interference.
• High-speed CMOS technology: Enables fast switching and data transmission.
• Schmitt-trigger action on all inputs: Provides hysteresis and improves noise immunity.

Advantages and Disadvantages

Advantages

• Wide operating voltage range allows compatibility with various systems.
• Low power consumption helps conserve energy.
• Schmitt-trigger action enhances noise immunity.
• 3-state outputs facilitate bus-oriented applications.

Disadvantages

• Limited output current may restrict use in certain high-current applications.
• Propagation delay of 6 ns may not be suitable for extremely time-critical operations.

Working Principles

The 74AHC125D,112 operates by receiving digital input signals through its data input pins (1A, 2A, 3A, 4A). These signals are then buffered and amplified before being transmitted to the corresponding buffered output pins (1Y, 2Y, 3Y, 4Y). The output enable pins (1OE, 2OE, 3OE) control the activation of the respective outputs. When an output is disabled, it enters a high-impedance state, allowing other devices to drive the bus.

Detailed Application Field Plans

The 74AHC125D,112 finds applications in various fields, including:

1. Microcontroller-based systems
2. Data communication systems
3. Industrial automation
4. Automotive electronics
5. Consumer electronics

Detailed and Complete Alternative Models

Some alternative models that offer similar functionality to the 74AHC125D,112 include:

1. SN74LVC125A: Quad buffer/line driver with 3-state outputs, operating voltage range of 1.65 V to 5.5 V.
2. MC74VHC125: Quad buffer/line driver with 3-state outputs, operating voltage range of 2 V to 5.5 V.
3. CD74HCT125E: Quad buffer/line driver with 3-state outputs, operating voltage range of 4.5 V to 5.5 V.

These alternative models can be considered based on specific requirements and compatibility with existing systems.

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