Encyclopedia Entry: 74ACT253PC

Product Overview

Category

The 74ACT253PC belongs to the category of integrated circuits (ICs) and specifically falls under the family of digital multiplexers.

Use

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

Characteristics

• High-speed operation
• Low power consumption
• Wide operating voltage range
• Compatibility with TTL logic levels
• Two independent 4-input multiplexers in a single package

Package

The 74ACT253PC is available in a 16-pin dual in-line package (DIP).

Essence

The essence of the 74ACT253PC lies in its ability to efficiently select and route data signals, enabling effective data management within electronic systems.

Packaging/Quantity

The 74ACT253PC is typically packaged in tubes or trays, with quantities varying based on customer requirements.

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: 6ns (max)
• Input Capacitance: 3pF (typ)
• Output Current: ±24mA

Detailed Pin Configuration

The 74ACT253PC features a total of 16 pins, each serving a specific function:

1. A0: Multiplexer A Data Input 0
2. A1: Multiplexer A Data Input 1
3. A2: Multiplexer A Data Input 2
4. A3: Multiplexer A Data Input 3
5. B0: Multiplexer B Data Input 0
6. B1: Multiplexer B Data Input 1
7. B2: Multiplexer B Data Input 2
8. B3: Multiplexer B Data Input 3
9. S1: Select Input 1
10. S0: Select Input 0
11. GND: Ground
12. Y: Multiplexer Output
13. VCC: Supply Voltage
14. NC: No Connection
15. NC: No Connection
16. NC: No Connection

Functional Features

The key functional features of the 74ACT253PC include: - Dual 4-input multiplexers - Independent selection control for each multiplexer - High-speed data selection and routing - Compatibility with TTL logic levels - Low power consumption

Advantages and Disadvantages

Advantages

• High-speed operation allows for efficient data processing.
• Wide operating voltage range enhances compatibility with various systems.
• Low power consumption contributes to energy efficiency.
• Dual multiplexers provide flexibility in data selection and routing.

Disadvantages

• Limited number of inputs (4 per multiplexer) may restrict certain applications requiring more inputs.
• Availability of alternative models with additional features may limit its competitiveness in specific scenarios.

Working Principles

The 74ACT253PC operates based on the principles of digital multiplexing. It utilizes the select inputs (S1 and S0) to determine which set of data inputs (A or B) is routed to the output (Y). The selected data is then available at the output pin for further processing or transmission.

Detailed Application Field Plans

The 74ACT253PC finds application in various electronic systems, including but not limited to: - Data communication equipment - Industrial automation systems - Consumer electronics - Automotive electronics - Medical devices

Detailed and Complete Alternative Models

Some alternative models that offer similar functionality to the 74ACT253PC are: - 74HC253: CMOS logic family, compatible with 5V systems - CD74ACT253: Advanced CMOS logic family, high-speed operation - SN54ACT253: Texas Instruments' version of the ACT253, wide temperature range

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

In conclusion, the 74ACT253PC is a versatile integrated circuit that enables efficient data selection and routing in various electronic applications. Its high-speed operation, low power consumption, and compatibility with TTL logic levels make it a valuable component in digital systems. However, its limited number of inputs and availability of alternative models should be taken into consideration when selecting the appropriate IC for a particular application.