Encyclopedia Entry: 74ACTQ244

Product Overview

• Category: Integrated Circuit (IC)
• Use: Buffer/Line Driver
• Characteristics: High-Speed, Low-Power, Octal Bus Buffer with 3-State Outputs
• Package: 20-pin SOIC (Small Outline Integrated Circuit)
• Essence: The 74ACTQ244 is a high-performance octal buffer designed to provide signal amplification and isolation for digital systems.
• Packaging/Quantity: Available in reels or tubes, typically sold in quantities of 25 or 100 units.

Specifications

• Supply Voltage: 2.0V to 6.0V
• Input Voltage Levels: CMOS/TTL Compatible
• Output Drive Capability: ±24mA
• Propagation Delay: 5.5ns (typical)
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The 74ACTQ244 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. GND (Ground)
11. Y5 (Output Y5)
12. A5 (Input A5)
13. Y6 (Output Y6)
14. A6 (Input A6)
15. Y7 (Output Y7)
16. A7 (Input A7)
17. Y8 (Output Y8)
18. VCC (Positive Power Supply)
19. OE (Output Enable)
20. GND (Ground)

Functional Features

• Octal buffer with 3-state outputs for bidirectional data flow.
• Provides signal amplification and isolation between different sections of a digital system.
• High-speed operation allows for efficient data transfer.
• Low-power consumption makes it suitable for battery-powered devices.
• CMOS/TTL compatible input voltage levels ensure compatibility with various logic families.

Advantages

• Fast propagation delay enables high-speed data transmission.
• Low power consumption helps conserve energy in portable devices.
• 3-state outputs allow for bus sharing and efficient data routing.
• Wide operating voltage range provides flexibility in different applications.

Disadvantages

• Limited output drive capability may not be suitable for driving heavy loads.
• Sensitivity to electrostatic discharge (ESD) requires proper handling during assembly and usage.

Working Principles

The 74ACTQ244 operates by receiving digital input signals on its A1-A7 pins. These inputs are then amplified and isolated before being transmitted to the corresponding Y1-Y8 output pins. The OE (Output Enable) pin controls the 3-state outputs, allowing the device to be enabled or disabled as needed.

Detailed Application Field Plans

The 74ACTQ244 is commonly used in various digital systems, including but not limited to: - Microprocessors and microcontrollers - Memory interfaces - Data communication systems - Industrial automation equipment - Automotive electronics

Alternative Models

• 74ACTQ240: Octal Buffer/Line Driver with Non-Inverting 3-State Outputs
• 74ACTQ241: Octal Buffer/Line Driver with Inverting 3-State Outputs
• 74ACTQ245: Octal Bus Transceiver with 3-State Outputs

Note: The above alternative models provide similar functionality but may have slight differences in pin configuration and specifications.

This encyclopedia entry provides an overview of the 74ACTQ244, including its product details, specifications, pin configuration, functional features, advantages, disadvantages, working principles, application field plans, and alternative models.