Encyclopedia Entry: 74ACT244SJ

Product Overview

Use

This product is commonly used in electronic circuits for signal amplification, buffering, and level shifting. It serves as a bidirectional octal buffer/line driver with 3-state outputs.

Characteristics

High-speed operation: The 74ACT244SJ operates at high speeds, making it suitable for applications requiring fast signal transmission.
3-state outputs: It features 3-state outputs that allow multiple devices to share a common bus without interfering with each other.
Wide voltage range: This IC can operate within a wide voltage range, typically between 2V and 6V.
Low power consumption: The 74ACT244SJ is designed to consume low power, making it energy-efficient.

Package and Quantity

The 74ACT244SJ is available in a small outline integrated circuit (SOIC) package. It is commonly sold in reels or tubes containing multiple units, with quantities varying depending on the supplier.

Specifications

Supply Voltage Range: 2V to 6V
Input Voltage Range: 0V to VCC
Output Voltage Range: 0V to VCC
Operating Temperature Range: -40°C to +85°C
Maximum Propagation Delay: 5 ns
Maximum Output Current: ±24 mA

Pin Configuration

The 74ACT244SJ has a total of 20 pins, which are assigned specific functions as follows:

Pin 1: Output Enable (OE)
Pin 2: Input/Output (IO1)
Pin 3: Input/Output (IO2)
Pin 4: Input/Output (IO3)
Pin 5: Input/Output (IO4)
Pin 6: Input/Output (IO5)
Pin 7: Input/Output (IO6)
Pin 8: Ground (GND)
Pin 9: Input/Output (IO7)
Pin 10: Input/Output (IO8)
Pin 11: Output Enable (OE)
Pin 12: Input/Output (IO9)
Pin 13: Input/Output (IO10)
Pin 14: Input/Output (IO11)
Pin 15: Input/Output (IO12)
Pin 16: Input/Output (IO13)
Pin 17: Input/Output (IO14)
Pin 18: Supply Voltage (VCC)
Pin 19: Input/Output (IO15)
Pin 20: Input/Output (IO16)

Functional Features

The 74ACT244SJ offers the following functional features:

Bidirectional Buffering: It allows bidirectional data flow, enabling seamless communication between different parts of a circuit.
3-State Outputs: The 3-state outputs provide flexibility by allowing the device to be disconnected from the bus when not in use.
High-Speed Operation: With a maximum propagation delay of 5 ns, this IC ensures efficient and rapid signal transmission.

Advantages and Disadvantages

Advantages

Fast signal propagation enables high-speed data transfer.
3-state outputs allow for easy bus sharing and system integration.
Wide voltage range compatibility enhances versatility in various applications.
Low power consumption contributes to energy efficiency.

Disadvantages

Limited number of input/output channels (16 in total).
May require additional components for specific circuit configurations.

Working Principles

The 74ACT244SJ operates based on the principles of digital logic. It uses transistors and other electronic components to amplify and buffer signals, ensuring reliable data transmission between different parts of an electronic circuit. The bidirectional nature of this IC allows for seamless communication in both directions.

Application Field Plans

The 74ACT244SJ finds applications in various fields, including:

Microprocessor Systems: It can be used to interface microprocessors with peripheral devices, such as memory modules or input/output devices.
Communication Systems: This IC facilitates signal buffering and level shifting in communication systems, ensuring accurate data transfer.
Industrial Automation: It plays a crucial role in controlling and interfacing different components within industrial automation systems.
Automotive Electronics: The 74ACT244SJ is utilized in automotive electronics for signal amplification and buffering in various control modules.

Alternative Models

Several alternative models are available that offer similar functionality to the 74ACT244SJ. Some notable alternatives include:

SN74ACT244: Manufactured by Texas Instruments, this IC offers comparable features and pin configuration to the 74ACT244SJ.
MC74ACT244: Produced by ON

Seznam 10 běžných otázek a odpovědí souvisejících s aplikací 74ACT244SJ v technických řešeních

Sure! Here are 10 common questions and answers related to the application of 74ACT244SJ in technical solutions:

Q: What is the 74ACT244SJ? A: The 74ACT244SJ is a type of octal buffer/line driver integrated circuit (IC) that can be used to amplify or buffer digital signals.
Q: What is the purpose of using the 74ACT244SJ? A: The 74ACT244SJ is commonly used to provide signal buffering, voltage level shifting, and isolation between different parts of a digital circuit.
Q: What is the maximum operating voltage for the 74ACT244SJ? A: The 74ACT244SJ has a maximum operating voltage of 5.5 volts.
Q: How many input/output pins does the 74ACT244SJ have? A: The 74ACT244SJ has 8 input pins and 8 output pins, making it an octal buffer.
Q: Can the 74ACT244SJ handle bidirectional data flow? A: Yes, the 74ACT244SJ supports bidirectional data flow, allowing data to be transmitted in both directions.
Q: What is the typical propagation delay of the 74ACT244SJ? A: The typical propagation delay of the 74ACT244SJ is around 5 nanoseconds.
Q: Can the 74ACT244SJ drive high capacitive loads? A: Yes, the 74ACT244SJ has a high output drive capability, allowing it to drive relatively high capacitive loads.
Q: Is the 74ACT244SJ compatible with TTL logic levels? A: Yes, the 74ACT244SJ is designed to be compatible with both TTL and CMOS logic levels.
Q: Can the 74ACT244SJ be used in high-speed applications? A: Yes, the 74ACT244SJ is specifically designed for high-speed operation and can be used in applications that require fast signal propagation.
Q: Are there any special considerations when using the 74ACT244SJ? A: It is important to ensure proper power supply decoupling and observe the recommended operating conditions mentioned in the datasheet to achieve optimal performance with the 74ACT244SJ.