Encyclopedia Entry: 74F244SCX

Product Overview

Category

The 74F244SCX belongs to the category of integrated circuits (ICs) and specifically falls under the family of octal buffers/drivers with 3-state outputs.

Use

This product is commonly used in digital electronic systems for signal buffering and driving applications. It provides a high-speed, non-inverting buffer with 3-state outputs, making it suitable for various digital logic designs.

Characteristics

• High-speed operation: The 74F244SCX offers fast switching times, allowing for efficient data transfer.
• 3-state outputs: This feature enables the device to be effectively connected to multiple devices without causing conflicts.
• Wide operating voltage range: The IC can operate within a broad voltage range, making it compatible with different power supply levels.
• Low power consumption: The 74F244SCX is designed to minimize power usage, enhancing energy efficiency.

Package and Quantity

The 74F244SCX is typically available in a small-outline integrated circuit (SOIC) package. It consists of 20 pins and is supplied in reels or tubes. The quantity per package varies depending on the manufacturer's specifications.

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: 6ns (max)
• Output Current: ±24mA

Detailed Pin Configuration

The 74F244SCX has a total of 20 pins, which are assigned specific functions as follows:

1. A1: Input A1
2. Y1: Output Y1
3. A2: Input A2
4. Y2: Output Y2
5. GND: Ground
6. A3: Input A3
7. Y3: Output Y3
8. A4: Input A4
9. Y4: Output Y4
10. VCC: Power Supply
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. OE: Output Enable
19. GND: Ground
20. A8: Input A8

Functional Features

The 74F244SCX offers the following functional features:

• Non-inverting buffer: The IC provides a non-inverting function, ensuring that the output signal matches the input signal.
• 3-state outputs: The device can be enabled or disabled using the Output Enable (OE) pin, allowing for multiple devices to share a common bus without interference.
• High-speed operation: With a propagation delay time of only 6ns, the IC facilitates rapid data transfer in digital systems.

Advantages and Disadvantages

Advantages

• Fast switching times enable efficient data transfer.
• 3-state outputs allow for easy integration into complex digital systems.
• Wide operating voltage range enhances compatibility with various power supply levels.
• Low power consumption contributes to energy efficiency.

Disadvantages

• Limited output current capacity may restrict certain applications requiring higher current levels.
• Sensitivity to electrostatic discharge (ESD) necessitates proper handling during installation and usage.

Working Principles

The 74F244SCX operates based on the principles of digital logic. It receives input signals through the designated pins and processes them using internal circuitry. The non-inverting buffer amplifies the input signals and provides corresponding outputs. The 3-state outputs enable the device to be connected to multiple devices without causing conflicts on the shared bus.

Detailed Application Field Plans

The 74F244SCX finds applications in various digital electronic systems, including but not limited to:

1. Microprocessor-based systems: The IC can be used for address and data bus buffering in microprocessor-based designs.
2. Memory systems: It is suitable for interfacing with memory modules, such as RAM and ROM, ensuring efficient data transfer.
3. Communication systems: The 74F244SCX facilitates signal buffering and driving in communication equipment, such as routers and switches.
4. Industrial automation: It can be employed in control systems, PLCs (Programmable Logic Controllers), and other industrial automation applications.

Alternative Models

Several alternative models are available that offer similar functionality to the 74F244SCX. These include:

• 74HC244: This model operates at a lower voltage range and offers compatibility with both CMOS and TTL logic levels.
• SN74LS244: It is a low-power Schottky TTL compatible model with similar characteristics to the