Encyclopedia Entry: 74ACT125TTR

Product Overview

Category

The 74ACT125TTR belongs to the category of integrated circuits (ICs).

Use

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

Characteristics

• The 74ACT125TTR operates at high speed, making it suitable for applications requiring fast data transfer.
• It has four independent buffer gates with tri-state outputs.
• This IC is designed to be compatible with TTL input and output voltage levels.
• It offers low power consumption and high noise immunity.

Package

The 74ACT125TTR is available in a small outline transistor (SOT) package.

Essence

The essence of the 74ACT125TTR lies in its ability to provide buffering and line driving functions, ensuring efficient data transmission.

Packaging/Quantity

This IC is typically packaged in reels or tubes, with a quantity of 2500 units per reel/tube.

Specifications

• Supply Voltage Range: 4.5V to 5.5V
• High-Level Input Voltage: 2.0V to VCC + 0.5V
• Low-Level Input Voltage: -0.5V to 0.8V
• High-Level Output Voltage: VCC - 0.5V
• Low-Level Output Voltage: 0.5V
• Maximum Operating Frequency: 120MHz
• Propagation Delay Time: 6ns (max)
• Operating Temperature Range: -40°C to 85°C

Detailed Pin Configuration

The 74ACT125TTR has a total of 14 pins, which are assigned specific functions as follows:

1. Pin 1: Input Enable (G1)
2. Pin 2: Buffer Input (A1)
3. Pin 3: Buffer Output (Y1)
4. Pin 4: Ground (GND)
5. Pin 5: Buffer Output (Y2)
6. Pin 6: Buffer Input (A2)
7. Pin 7: Input Enable (G2)
8. Pin 8: VCC
9. Pin 9: Buffer Input (A3)
10. Pin 10: Buffer Output (Y3)
11. Pin 11: Buffer Output (Y4)
12. Pin 12: Buffer Input (A4)
13. Pin 13: Input Enable (G3)
14. Pin 14: Buffer Output (Y4)

Functional Features

• The 74ACT125TTR provides four independent buffer gates, allowing for simultaneous operation.
• It offers tri-state outputs, enabling the connection of multiple devices without interference.
• This IC has a high-speed operation, making it suitable for applications requiring quick data transfer.
• It ensures compatibility with TTL input and output voltage levels, facilitating integration into existing systems.
• The 74ACT125TTR exhibits low power consumption, contributing to energy-efficient designs.
• It possesses high noise immunity, ensuring reliable performance even in noisy environments.

Advantages and Disadvantages

Advantages

• High-speed operation enables fast data transfer.
• Tri-state outputs allow for efficient device connectivity.
• Compatibility with TTL voltage levels simplifies integration.
• Low power consumption contributes to energy efficiency.
• High noise immunity ensures reliable performance.

Disadvantages

• Limited number of buffer gates (four in total).
• Requires careful consideration of operating temperature range (-40°C to 85°C).

Working Principles

The 74ACT125TTR operates by receiving input signals through its buffer inputs (A1-A4). These signals are then buffered and amplified before being transmitted through the corresponding buffer outputs (Y1-Y4). The input enable pins (G1-G3) control the activation of the buffer gates, allowing for tri-state outputs when necessary. The IC's compatibility with TTL voltage levels ensures seamless integration into various systems.

Detailed Application Field Plans

The 74ACT125TTR finds applications in a wide range of fields, including:

1. Data communication systems
2. Industrial automation
3. Automotive electronics
4. Consumer electronics
5. Medical equipment
6. Robotics
7. Telecommunications

In data communication systems, this IC can be used to interface between different logic families, ensuring reliable signal transmission. In industrial automation, it facilitates the control and monitoring of various processes. Automotive electronics benefit from its high-speed operation and noise immunity. Consumer electronics, such as smartphones and tablets, utilize the 74ACT125TTR for efficient data transfer. Medical equipment relies on its reliability and compatibility. Robotics and telecommunications also make use of this IC for their data processing and transmission needs.

Detailed and Complete Alternative Models

Some alternative models that offer similar functionality to the 74ACT125TTR include:

1. SN74ACT125: Manufactured by Texas Instruments, this IC provides quad buffer