Encyclopedia Entry: 74ACT240TTR

Product Overview

Category

The 74ACT240TTR belongs to the category of integrated circuits (ICs).

Use

This IC is commonly used in digital electronic systems for signal amplification and buffering purposes.

Characteristics

• The 74ACT240TTR is a high-speed octal buffer/line driver with three-state outputs.
• It operates on a wide voltage range, typically between 4.5V and 5.5V.
• This IC offers fast propagation delay times, making it suitable for high-performance applications.
• It has a low power consumption, making it energy-efficient.

Package

The 74ACT240TTR is available in a small-outline transistor (SOT) package.

Essence

The essence of the 74ACT240TTR lies in its ability to amplify and buffer digital signals effectively.

Packaging/Quantity

This IC is typically packaged in reels or tubes, containing a specific quantity per package. Please refer to the manufacturer's specifications for detailed packaging information.

Specifications

• Supply Voltage Range: 4.5V to 5.5V
• Input Voltage Range: 0V to VCC
• Output Voltage Range: 0V to VCC
• Operating Temperature Range: -40°C to +85°C
• Maximum Propagation Delay Time: 6 ns
• Maximum Quiescent Current: 8 mA

Detailed Pin Configuration

The 74ACT240TTR has a total of 20 pins, which are assigned specific functions as follows:

1. Pin 1: Output Y1
2. Pin 2: Output Y2
3. Pin 3: Output Y3
4. Pin 4: Output Y4
5. Pin 5: Output Y5
6. Pin 6: Output Y6
7. Pin 7: Output Y7
8. Pin 8: Output Y8
9. Pin 9: GND (Ground)
10. Pin 10: Input OE (Output Enable)
11. Pin 11: Input A1
12. Pin 12: Input A2
13. Pin 13: Input A3
14. Pin 14: Input A4
15. Pin 15: Input A5
16. Pin 16: Input A6
17. Pin 17: Input A7
18. Pin 18: Input A8
19. Pin 19: VCC (Supply Voltage)
20. Pin 20: NC (No Connection)

Functional Features

• The 74ACT240TTR acts as a buffer and line driver, providing signal amplification and buffering capabilities.
• It features three-state outputs, allowing for easy control of the output signals.
• This IC has a high-speed operation, making it suitable for applications requiring fast signal propagation.

Advantages and Disadvantages

Advantages

• Wide voltage range allows for compatibility with various digital systems.
• Low power consumption makes it energy-efficient.
• High-speed operation enables use in high-performance applications.

Disadvantages

• Limited pin count may restrict its use in complex systems requiring more inputs/outputs.
• Availability and pricing may vary depending on the supplier and market conditions.

Working Principles

The 74ACT240TTR works by receiving input signals through its eight input pins (A1 to A8). These signals are then amplified and buffered before being transmitted to the corresponding output pins (Y1 to Y8). The Output Enable (OE) pin controls the activation of the outputs. When the OE pin is low, the outputs are enabled, allowing the amplified signals to pass through. Conversely, when the OE pin is high, the outputs are disabled, resulting in a high-impedance state.

Detailed Application Field Plans

The 74ACT240TTR finds applications in various digital electronic systems, including but not limited to: - Microcontrollers and microprocessors - Data communication systems - Memory interfaces - Industrial automation systems - Automotive electronics

Detailed and Complete Alternative Models

Some alternative models that offer similar functionality to the 74ACT240TTR include: - 74HC240: This IC operates at a lower voltage range (2V to 6V) and has a higher propagation delay time compared to the 74ACT240TTR. - SN74LS240: This IC operates at a wider temperature range (-55°C to +125°C) and has a slower maximum propagation delay time compared to the 74ACT240TTR.

Please note that the suitability of alternative models may vary depending on specific application requirements. It is recommended to consult the manufacturer's datasheets for detailed specifications and compatibility information.

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