Encyclopedia Entry: 74ACT240SJX

Product Information Overview

• Category: Integrated Circuit (IC)
• Use: Buffer/Line Driver
• Characteristics: High-Speed, Octal Inverting Buffer/Line Driver
• Package: SOIC (Small Outline Integrated Circuit)
• Essence: The 74ACT240SJX is a high-speed octal inverting buffer/line driver IC that provides eight independent buffers with tri-state outputs. It is commonly used for signal amplification and buffering in digital circuits.
• Packaging/Quantity: The 74ACT240SJX is typically available in a reel packaging format, containing 2500 units per reel.

Specifications

• Logic Family: ACT
• Number of Buffers: 8
• Input Voltage Range: 0V to 5.5V
• Output Voltage Range: 0V to 5.5V
• Propagation Delay Time: 4.5ns (Max)
• Operating Temperature Range: -40°C to +85°C
• Supply Voltage Range: 4.5V to 5.5V

Detailed Pin Configuration

The 74ACT240SJX has a total of 20 pins, which are assigned as follows:

1. GND (Ground)
2. A1 (Input A1)
3. Y1 (Output Y1)
4. A2 (Input A2)
5. Y2 (Output Y2)
6. A3 (Input A3)
7. Y3 (Output Y3)
8. A4 (Input A4)
9. Y4 (Output Y4)
10. A5 (Input A5)
11. Y5 (Output Y5)
12. A6 (Input A6)
13. Y6 (Output Y6)
14. A7 (Input A7)
15. Y7 (Output Y7)
16. A8 (Input A8)
17. Y8 (Output Y8)
18. OE (Output Enable)
19. VCC (Supply Voltage)
20. GND (Ground)

Functional Features

• High-speed operation: The 74ACT240SJX is designed to operate at high speeds, making it suitable for applications that require fast signal buffering.
• Tri-state outputs: The IC provides tri-state outputs, allowing the user to disable the output drivers when not needed.
• Wide voltage range: It supports a wide input and output voltage range of 0V to 5.5V, making it compatible with various digital logic systems.
• Low power consumption: The IC has low power consumption, making it energy-efficient.

Advantages and Disadvantages

Advantages: - High-speed operation - Tri-state outputs for flexibility - Wide voltage range compatibility - Low power consumption

Disadvantages: - Limited number of buffers (8 in total) - Requires external components for complete circuit implementation

Working Principles

The 74ACT240SJX operates by receiving input signals on its eight input pins (A1-A8). These signals are then buffered and inverted by the internal circuitry. The resulting output signals (Y1-Y8) are provided on the corresponding output pins. The tri-state output feature allows the user to enable or disable the output drivers using the OE (Output Enable) pin.

Detailed Application Field Plans

The 74ACT240SJX can be used in various applications, including but not limited to: - Digital data communication systems - Microprocessor-based systems - Memory address decoding circuits - Bus interface circuits - Signal amplification and buffering in digital circuits

Detailed and Complete Alternative Models

Some alternative models that offer similar functionality to the 74ACT240SJX include: - 74HC240: High-Speed Octal Inverting Buffer/Line Driver (CMOS Logic Family) - SN74LS240: Octal Buffer/Line Driver with 3-State Outputs (TTL Logic Family) - CD4049UB: Hex Inverting Buffer/Converter (CMOS Logic Family)

These alternative models can be considered based on specific requirements and compatibility with the target application.

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