Encyclopedia Entry: 74ACT253SC

Product Overview

Category

The 74ACT253SC belongs to the category of integrated circuits (ICs) and specifically falls under the family of digital logic multiplexers.

Use

This IC is primarily used for data selection and routing purposes in various electronic applications.

Characteristics

• The 74ACT253SC is a dual 4-input multiplexer with common select inputs.
• It operates on a supply voltage range of 4.5V to 5.5V.
• This IC offers high-speed performance and low power consumption.
• It is designed to be compatible with TTL (Transistor-Transistor Logic) input and output voltage levels.
• The 74ACT253SC is known for its reliable and robust operation.

Package

The 74ACT253SC is available in a small outline integrated circuit (SOIC) package.

Essence

The essence of the 74ACT253SC lies in its ability to efficiently route and select data signals, enabling effective data management within electronic systems.

Packaging/Quantity

The 74ACT253SC is typically packaged in reels or tubes, containing a specific quantity of ICs per package. The exact packaging and quantity may vary depending on the manufacturer.

Specifications

• Supply Voltage Range: 4.5V to 5.5V
• Input Voltage Levels: TTL-compatible
• Output Voltage Levels: TTL-compatible
• Operating Temperature Range: -40°C to +85°C
• Propagation Delay Time: <10 ns
• Maximum Power Dissipation: 500 mW

Detailed Pin Configuration

The 74ACT253SC features a 16-pin configuration. The pinout diagram is as follows:

+---\/---+ A1 -|1 16|- Vcc A2 -|2 15|- B1 A3 -|3 14|- B2 A4 -|4 13|- S0 GND -|5 12|- S1 Y1 -|6 11|- /OE Y2 -|7 10|- /OE B3 -|8 9|- /OE +--------+

Functional Features

• Dual 4-input multiplexer with common select inputs.
• Allows selection between two sets of four data inputs based on the select inputs.
• Provides two independent outputs, each corresponding to one set of selected inputs.
• Offers TTL-compatible input and output voltage levels for seamless integration with other digital logic circuits.
• High-speed operation enables efficient data routing.

Advantages and Disadvantages

Advantages

• High-speed performance allows for quick data selection and routing.
• Low power consumption contributes to energy-efficient designs.
• Reliable operation ensures consistent functionality.
• Compatibility with TTL voltage levels facilitates integration with existing systems.

Disadvantages

• Limited number of inputs and outputs may restrict certain applications requiring more extensive data routing capabilities.
• The IC's small size may pose challenges during manual handling and soldering processes.

Working Principles

The 74ACT253SC operates based on the principles of digital logic multiplexing. It utilizes select inputs to choose between multiple data inputs and routes the selected data to the corresponding outputs. The IC's internal circuitry ensures that only the desired data is transmitted, while maintaining compatibility with TTL voltage levels.

Detailed Application Field Plans

The 74ACT253SC finds application in various electronic systems where data selection and routing are crucial. Some specific application fields include:

1. Data communication systems: Used to manage data flow and route signals between different components.
2. Multiplexing/demultiplexing circuits: Enables efficient selection and routing of data in complex systems.
3. Digital signal processing: Facilitates data selection and routing in DSP applications.
4. Microcontroller-based systems: Utilized for managing input/output signals in microcontroller circuits.

Detailed and Complete Alternative Models

1. 74HC253: Similar dual 4-input multiplexer, compatible with CMOS logic levels.
2. 74LS253: Dual 4-input multiplexer with TTL-compatible inputs and outputs, but operates at a slower speed compared to the 74ACT253SC.
3. CD4052: Analog multiplexer/demultiplexer IC with similar pin configuration, suitable for both digital and analog signal routing.

These alternative models offer similar functionality to the 74ACT253SC, catering to different voltage level requirements or specific application scenarios.

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