Encyclopedia Entry: 74AC240SC

Product Overview

Category

The 74AC240SC belongs to the category of integrated circuits (ICs), specifically digital logic devices.

Use

This IC is commonly used in electronic circuits for signal amplification, buffering, and switching purposes. It serves as a non-inverting octal buffer/line driver with 3-state outputs.

Characteristics

• Non-inverting buffer/line driver
• Octal (8-bit) configuration
• 3-state outputs
• High-speed operation
• Low power consumption
• Wide operating voltage range

Package

The 74AC240SC is available in a small-outline integrated circuit (SOIC) package. This package type provides compactness and ease of integration into various electronic systems.

Essence

The essence of the 74AC240SC lies in its ability to amplify and buffer digital signals while maintaining their integrity and providing efficient signal routing options.

Packaging/Quantity

The 74AC240SC is typically packaged in reels or tubes, containing a quantity of 250 or 1000 units per package, respectively.

Specifications

• Supply Voltage Range: 2V to 6V
• Input Voltage Range: 0V to VCC
• Output Voltage Range: 0V to VCC
• Maximum Operating Frequency: 125 MHz
• Propagation Delay Time: 5 ns (max)
• Output Current: ±24 mA

Detailed Pin Configuration

The 74AC240SC has a total of 20 pins, which are assigned specific functions as follows:

1. GND: Ground (0V)
2. A1: Input A1
3. B1: Input B1
4. Y1: Output Y1
5. A2: Input A2
6. B2: Input B2
7. Y2: Output Y2
8. A3: Input A3
9. B3: Input B3
10. Y3: Output Y3
11. A4: Input A4
12. B4: Input B4
13. Y4: Output Y4
14. VCC: Positive Supply Voltage
15. OE: Output Enable
16. Y5: Output Y5
17. A5: Input A5
18. B5: Input B5
19. Y6: Output Y6
20. A6: Input A6

Functional Features

• Non-inverting buffer/line driver operation
• 3-state outputs allow for high impedance state when disabled
• High-speed operation enables efficient signal processing
• Wide operating voltage range provides flexibility in various applications
• Low power consumption ensures energy efficiency

Advantages and Disadvantages

Advantages

• Provides signal amplification and buffering capabilities
• Allows for efficient signal routing with 3-state outputs
• High-speed operation enhances overall system performance
• Versatile voltage range compatibility
• Low power consumption contributes to energy-efficient designs

Disadvantages

• Limited output current capacity (±24 mA)
• Propagation delay time may affect timing-sensitive applications

Working Principles

The 74AC240SC operates based on the principles of digital logic. It receives input signals, amplifies them, and routes them to the corresponding outputs. The non-inverting nature of the device ensures that the output signals maintain the same logic level as the inputs. The 3-state outputs provide the option to disable the outputs, effectively placing them in a high impedance state.

Detailed Application Field Plans

The 74AC240SC finds application in various electronic systems, including but not limited to: - Microprocessor-based systems - Data communication networks - Memory modules - Industrial automation equipment - Consumer electronics

Detailed and Complete Alternative Models

Some alternative models to the 74AC240SC that serve similar functions include: - 74HC240: High-speed CMOS octal buffer/line driver - SN74LS240: Low-power Schottky TTL octal inverting buffer/line driver - CD4049: Hex inverting buffer/converters

These alternative models offer different characteristics, specifications, and package options, allowing designers to choose the most suitable option for their specific requirements.

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