SN74AS244AN

Product Overview

• Category: Integrated Circuit (IC)
• Use: Buffer/Line Driver
• Characteristics:
  • High-speed operation
  • Wide voltage range
  • Non-inverting buffer
• Package: DIP (Dual In-line Package)
• Essence: Logic gate buffer with non-inverting functionality
• Packaging/Quantity: Tube packaging, 25 pieces per tube

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: 9ns (typical)
• Output Current: ±24mA

Detailed Pin Configuration

The SN74AS244AN has a 20-pin DIP package with the following pin configuration:

__ __ A1 |1 U 20| VCC B1 |2 19| B7 A2 |3 18| A7 B2 |4 17| GND A3 |5 16| B6 B3 |6 15| A6 A4 |7 14| B5 B4 |8 13| A5 G1 |9 12| B5 GND |10 11| A5 --------

Functional Features

• Non-inverting buffer: The SN74AS244AN amplifies and buffers digital signals without changing their logic levels.
• High-speed operation: It operates at a fast propagation delay time of 9ns, making it suitable for high-frequency applications.
• Wide voltage range: The IC can operate within a voltage range of 4.5V to 5.5V, providing flexibility in various electronic systems.

Advantages and Disadvantages

Advantages: - High-speed operation enables efficient signal amplification. - Wide voltage range allows compatibility with different power supply levels. - Non-inverting functionality preserves the logic levels of input signals.

Disadvantages: - Limited output current may restrict its use in applications requiring higher current capabilities. - DIP package may not be suitable for space-constrained designs.

Working Principles

The SN74AS244AN is based on TTL (Transistor-Transistor Logic) technology. It consists of multiple transistor-based buffer circuits that amplify and buffer digital signals. The non-inverting nature of the buffer ensures that the logic levels of the input signals are preserved in the output.

Detailed Application Field Plans

The SN74AS244AN can be used in various applications, including:

1. Data communication systems: It can be employed as a line driver to amplify and transmit digital signals over long distances.
2. Microprocessor interfacing: The IC can act as a buffer between a microprocessor and other peripheral devices, ensuring proper signal levels.
3. Clock distribution: It can be utilized to distribute clock signals across different components in a system, maintaining synchronization.

Detailed and Complete Alternative Models

Some alternative models to SN74AS244AN include:

1. SN74LS244: Similar functionality but operates at a lower speed.
2. SN74HC244: Compatible with CMOS logic levels and offers improved power efficiency.
3. SN74ACT244: Provides faster switching speeds and lower power consumption compared to the AS series.

These alternatives offer similar buffering capabilities but may have variations in speed, power consumption, and voltage compatibility.

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