DM74LS244N

Overview

Category: Integrated Circuit (IC)

Use: The DM74LS244N is a popular octal buffer/line driver IC. It is commonly used in digital electronics circuits to provide buffering and signal amplification capabilities.

Characteristics: - Octal (8-bit) buffer/line driver - TTL (Transistor-Transistor Logic) compatible inputs - High-speed operation - Low power consumption - Wide operating voltage range - Output current capability: ±15mA - Output voltage level compatibility: 5V

Package: DIP (Dual In-line Package)

Essence: The DM74LS244N is designed to provide high-performance buffering and line driving capabilities for digital signals in various electronic applications.

Packaging/Quantity: The DM74LS244N is typically available in a standard DIP package, which contains a single IC unit.

Specifications

The specifications of the DM74LS244N are as follows:

• Supply Voltage Range: 4.75V to 5.25V
• Input Voltage Range: 0V to 5V
• Operating Temperature Range: -40°C to +85°C
• Propagation Delay Time: 10ns (max)
• Output Rise/Fall Time: 6ns (typ)
• Quiescent Power Dissipation: 500mW (max)

Pin Configuration

The DM74LS244N has a total of 20 pins, which are arranged as follows:

__ __ A1 -| 01 20 |- VCC B1 -| 02 19 |- A2 A3 -| 03 18 |- B2 B3 -| 04 17 |- A4 A5 -| 05 16 |- B4 B5 -| 06 15 |- A6 A7 -| 07 14 |- B6 B7 -| 08 13 |- A8 GND -| 09 12 |- B8 Y1 -| 10 11 |- G ¯¯ ¯¯

Functional Features

The DM74LS244N offers the following functional features:

• Octal buffer/line driver with 3-state outputs
• Inputs are TTL compatible, allowing easy integration with other digital logic circuits
• High-speed operation enables efficient signal transmission
• Low power consumption ensures energy efficiency
• Wide operating voltage range provides flexibility in various applications
• Output current capability of ±15mA allows driving of multiple loads
• 3-state outputs allow for bus-oriented applications and bidirectional data flow

Advantages and Disadvantages

Advantages: - High-speed operation - Wide operating voltage range - Low power consumption - TTL compatible inputs - 3-state outputs for bus-oriented applications

Disadvantages: - Limited output current capability (±15mA) - Propagation delay time may affect timing-sensitive applications

Working Principles

The DM74LS244N operates by receiving input signals and amplifying them to drive corresponding output lines. It utilizes TTL-compatible inputs to ensure compatibility with other digital logic circuits. The 3-state outputs enable bidirectional data flow and facilitate bus-oriented applications.

Detailed Application Field Plans

The DM74LS244N finds applications in various fields, including but not limited to:

1. Microprocessor-based systems
2. Data communication systems
3. Industrial automation
4. Instrumentation and measurement equipment
5. Automotive electronics
6. Consumer electronics

Alternative Models

Below are some alternative models that offer similar functionality to the DM74LS244N:

1. SN74LS244N
2. 74HC244
3. CD74HCT244E
4. MC74ACT244N

These alternative models can be considered based on specific requirements and availability.

In conclusion, the DM74LS244N is a versatile octal buffer/line driver IC that offers high-speed operation, low power consumption, and wide operating voltage range. Its TTL-compatible inputs and 3-state outputs make it suitable for various digital electronics applications.