Encyclopedia Entry: 74F258APC

Product Overview

Category

The 74F258APC belongs to the category of integrated circuits (ICs) and specifically falls under the family of multiplexers/demultiplexers.

Use

This IC is commonly used in digital electronic systems for data multiplexing and demultiplexing operations. It enables the selection and routing of multiple input signals to a single output or vice versa.

Characteristics

• The 74F258APC is a quad 2-input multiplexer with 3-state outputs.
• It operates on a supply voltage range of 4.5V to 5.5V.
• This IC offers high-speed performance, making it suitable for applications requiring fast data switching.
• It features low power consumption, contributing to energy-efficient designs.
• The 74F258APC is designed to be compatible with various TTL families.

Package and Quantity

The 74F258APC is available in a 16-pin dual in-line package (DIP). Each package contains one IC.

Specifications

• Supply Voltage Range: 4.5V to 5.5V
• Input Voltage High (VIH): 2.0V (min)
• Input Voltage Low (VIL): 0.8V (max)
• Output Voltage High (VOH): 2.4V (min)
• Output Voltage Low (VOL): 0.4V (max)
• Operating Temperature Range: -40°C to +85°C
• Propagation Delay Time: 7ns (typical)

Pin Configuration

The 74F258APC has a total of 16 pins, each serving a specific function. The pin configuration is as follows:

┌───┬───┐ A1 --|1 └─ 16|-- VCC B1 --|2 15|-- Y1 A2 --|3 14|-- Y2 B2 --|4 13|-- Y3 E --|5 12|-- Y4 Y --|6 11|-- B4 GND --|7 10|-- A4 A3 --|8 9|-- B3 └───────┘

Functional Features

• The 74F258APC offers four independent multiplexers in a single IC package.
• It provides three-state outputs, allowing for easy connection to other digital circuits.
• This IC supports both active-high and active-low enable inputs, providing flexibility in system design.

Advantages and Disadvantages

Advantages: - High-speed performance enables efficient data switching. - Low power consumption contributes to energy-efficient designs. - Compatibility with various TTL families allows for versatile integration.

Disadvantages: - Limited number of input/output channels compared to larger multiplexer ICs. - May require additional external components for certain applications.

Working Principles

The 74F258APC operates based on the principles of digital logic. It uses internal circuitry to select and route input signals to the desired output based on the control inputs. The three-state outputs allow the IC to effectively isolate itself from the rest of the circuit when not actively transmitting data.

Application Field Plans

The 74F258APC finds application in various digital systems, including but not limited to: - Data communication systems - Multiplexed data buses - Address decoding circuits - Data routing and selection modules

Alternative Models

Other alternative models that can be considered as replacements or substitutes for the 74F258APC include: - 74HC258 - 74LS258 - CD4051

These alternative models offer similar functionality and can be used interchangeably in many applications.

In conclusion, the 74F258APC is a versatile quad 2-input multiplexer IC that provides high-speed data switching capabilities. Its low power consumption and compatibility with various TTL families make it suitable for a wide range of digital electronic systems.

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