Encyclopedia Entry: 74F244SC

Product Overview

Category

The 74F244SC belongs to the category of integrated circuits (ICs), specifically, it is a type of buffer/line driver IC.

Use

This IC is commonly used in digital electronic circuits to provide buffering and line driving capabilities. It helps in amplifying and shaping digital signals, ensuring proper signal transmission between different components of a circuit.

Characteristics

• The 74F244SC operates on a supply voltage range of 4.5V to 5.5V.
• It offers high-speed performance with a typical propagation delay of 6 nanoseconds.
• This IC has a wide operating temperature range of -40°C to 85°C, making it suitable for various environments.
• It features a tri-state output, allowing multiple devices to share a common bus without interference.

Package and Quantity

The 74F244SC is available in a 20-pin small outline integrated circuit (SOIC) package. Each package contains one IC.

Specifications

• Supply Voltage Range: 4.5V to 5.5V
• Operating Temperature Range: -40°C to 85°C
• Propagation Delay: 6 ns (typical)
• Output Current: ±24 mA
• Input Voltage High: 2.0V (min), 0.8V (max)
• Input Voltage Low: 0.8V (min), 0.2V (max)

Pin Configuration

The 74F244SC has a total of 20 pins, which are assigned specific functions as follows:

1. A1
2. Y1
3. A2
4. Y2
5. GND
6. Y3
7. A3
8. Y4
9. A4
10. Y5
11. GND
12. Y6
13. A5
14. Y7
15. A6
16. Y8
17. VCC
18. OE#
19. GND
20. OE#

Functional Features

• The 74F244SC provides eight non-inverting buffers with tri-state outputs.
• It offers high-speed signal amplification and shaping capabilities.
• The tri-state output allows for easy bus sharing between multiple devices.
• This IC has built-in protection against electrostatic discharge (ESD) and latch-up.

Advantages

• High-speed performance enables efficient signal transmission in digital circuits.
• Tri-state output facilitates bus sharing, reducing the number of required components.
• Built-in ESD and latch-up protection enhance reliability and durability.

Disadvantages

• The 74F244SC may consume relatively higher power compared to low-power buffer ICs.
• It requires careful handling during installation to avoid damage from static electricity.

Working Principles

The 74F244SC operates by receiving input signals on its designated pins and amplifying them to provide corresponding output signals. The tri-state output allows the IC to disconnect from the bus when not actively driving it, preventing signal interference.

Application Field Plans

The 74F244SC finds applications in various digital electronic systems, including: 1. Microprocessor-based systems 2. Data communication networks 3. Memory modules 4. Industrial control systems 5. Automotive electronics

Alternative Models

Other alternative models that can be used as substitutes for the 74F244SC include: - SN74LS244 - CD74HC244 - MC74ACT244

These alternatives offer similar functionality and characteristics, allowing flexibility in design choices.

In conclusion, the 74F244SC is a versatile buffer/line driver IC widely used in digital electronic circuits. Its high-speed performance, tri-state output, and built-in protection features make it suitable for various applications. Designers can also consider alternative models based on their specific requirements.