Encyclopedia Entry: 74ACTQ240PC

Product Information Overview

• Category: Integrated Circuit (IC)
• Use: Logic Buffer/Line Driver
• Characteristics: High-Speed, Low-Power, Octal Buffer/Line Driver
• Package: 20-pin Plastic Dual Inline Package (PDIP)
• Essence: The 74ACTQ240PC is a versatile integrated circuit that provides high-speed buffering and line driving capabilities for digital logic circuits.
• Packaging/Quantity: Available in tubes or reels with varying quantities.

Specifications

The 74ACTQ240PC has the following 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
• Propagation Delay Time: 3.8ns (typical)
• Output Drive Capability: ±24mA

Detailed Pin Configuration

The 74ACTQ240PC features a 20-pin PDIP package with the following pin configuration:

1. GND (Ground)
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. GND (Ground)
9. A3 (Input A3)
10. B3 (Input B3)
11. Y3 (Output Y3)
12. A4 (Input A4)
13. B4 (Input B4)
14. Y4 (Output Y4)
15. GND (Ground)
16. OE (Output Enable)
17. A5 (Input A5)
18. B5 (Input B5)
19. Y5 (Output Y5)
20. VCC (Supply Voltage)

Functional Features

The 74ACTQ240PC offers the following functional features:

• Octal buffer/line driver with 3-state outputs
• High-speed operation, making it suitable for time-critical applications
• Low-power consumption, ensuring efficient use of energy
• 3-state outputs allow multiple devices to share a common bus without interference
• Schmitt-trigger inputs provide hysteresis and improve noise immunity

Advantages and Disadvantages

Advantages of the 74ACTQ240PC include:

• High-speed operation enables rapid data transmission
• Low-power consumption reduces energy requirements
• 3-state outputs facilitate bus sharing in complex systems
• Schmitt-trigger inputs enhance noise immunity

Disadvantages of the 74ACTQ240PC include:

• Limited output drive capability may not be suitable for high-current applications
• Requires careful handling to prevent damage due to electrostatic discharge (ESD)

Working Principles

The 74ACTQ240PC operates by receiving input signals on its A1-A5 and B1-B5 pins. These signals are buffered and amplified internally before being driven to the corresponding Y1-Y5 output pins. The OE (Output Enable) pin controls the output state, allowing the device to enter a high-impedance state when disabled.

Detailed Application Field Plans

The 74ACTQ240PC finds applications in various fields, including:

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

In microprocessor-based systems, the 74ACTQ240PC can be used to interface between the microprocessor and other peripheral devices, ensuring reliable data transfer. In data communication networks, it helps in buffering and driving signals across different network components. In industrial automation and automotive electronics, it aids in controlling and interfacing various sensors and actuators. In consumer electronics, it can be utilized for signal conditioning and level shifting.

Detailed and Complete Alternative Models

Some alternative models to the 74ACTQ240PC include:

1. 74HC240: High-Speed CMOS Octal Buffer/Line Driver
2. SN74LS240: Low-Power Schottky TTL Octal Buffer/Line Driver
3. CD74ACT240: Advanced CMOS Octal Buffer/Line Driver

These alternatives offer similar functionality but may have different specifications, pin configurations, or package options. It is important to consider the specific requirements of the application when selecting an alternative model.

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