Encyclopedia Entry: 74ABT2244CPC

Product Overview

Category

The 74ABT2244CPC belongs to the category of integrated circuits (ICs).

Use

This IC is commonly used in digital electronic systems for signal amplification and buffering purposes.

Characteristics

• The 74ABT2244CPC is a high-speed octal buffer/line driver with 3-state outputs.
• It operates on a wide voltage range, typically between 4.5V and 5.5V.
• This IC offers a high output current capability, making it suitable for driving various loads.
• It features a symmetrical output impedance, ensuring balanced signal transmission.

Package and Quantity

The 74ABT2244CPC is available in a 20-pin plastic dual in-line package (PDIP). It is commonly sold in reels or tubes containing multiple units.

Essence

The essence of the 74ABT2244CPC lies in its ability to amplify and buffer digital signals, providing reliable and efficient signal transmission within electronic systems.

Specifications

• Supply Voltage Range: 4.5V to 5.5V
• High-Level Input Voltage: 2.0V (min), 3.85V (max)
• Low-Level Input Voltage: 0.8V (min), 1.35V (max)
• High-Level Output Voltage: 2.4V (min), VCC (max)
• Low-Level Output Voltage: GND (min), 0.55V (max)
• Maximum Operating Frequency: 125 MHz
• Output Current: ±24 mA

Detailed Pin Configuration

The 74ABT2244CPC has a total of 20 pins, which are assigned specific functions as follows:

1. OE (Output Enable) - Output Enable Control Input
2. A1 - Data Input/Output
3. Y1 - Data Output
4. GND - Ground
5. Y2 - Data Output
6. A2 - Data Input/Output
7. Y3 - Data Output
8. VCC - Positive Power Supply
9. Y4 - Data Output
10. A3 - Data Input/Output
11. Y5 - Data Output
12. A4 - Data Input/Output
13. Y6 - Data Output
14. A5 - Data Input/Output
15. Y7 - Data Output
16. A6 - Data Input/Output
17. Y8 - Data Output
18. A7 - Data Input/Output
19. GND - Ground
20. OE (Output Enable) - Output Enable Control Input

Functional Features

• The 74ABT2244CPC provides eight independent buffer/line driver channels.
• It offers 3-state outputs, allowing for efficient bus sharing and signal isolation.
• This IC has a built-in output enable control, enabling easy control of the output state.
• It features balanced propagation delays, ensuring accurate signal synchronization.

Advantages and Disadvantages

Advantages

• High-speed operation allows for quick signal processing.
• Wide voltage range compatibility enhances versatility in various applications.
• Symmetrical output impedance ensures balanced signal transmission.
• 3-state outputs facilitate efficient bus sharing.

Disadvantages

• Limited maximum operating frequency compared to some newer ICs.
• Requires careful consideration of power supply voltage to ensure proper functionality.

Working Principles

The 74ABT2244CPC operates by receiving digital input signals on its data input pins (A1-A7). These signals are then amplified and buffered by the internal circuitry. The output state is controlled by the output enable pins (OE), which can be used to enable or disable the output channels. The amplified and buffered signals are then transmitted through the respective data output pins (Y1-Y8).

Detailed Application Field Plans

The 74ABT2244CPC finds applications in various digital electronic systems, including but not limited to: - Microprocessor-based systems - Data communication systems - Memory interfaces - Industrial control systems - Automotive electronics

Alternative Models

Here are some alternative models that can be considered as substitutes for the 74ABT2244CPC: - SN74ABT2244A by Texas Instruments - MC74ABT2244 by ON Semiconductor - CD74ABT2244 by Texas Instruments - 74ACT2244 by Fairchild Semiconductor

These alternative models offer similar functionality and characteristics, providing options for different sourcing preferences.

In conclusion, the 74ABT2244CPC is a versatile integrated circuit that serves as a high-speed octal buffer/line driver. Its wide voltage range compatibility, balanced signal transmission, and 3-state outputs make it suitable for various digital electronic applications.