Encyclopedia Entry: 74VHCT238AMTR

Product Overview

Category

The 74VHCT238AMTR belongs to the category of integrated circuits (ICs) and specifically falls under the family of digital multiplexers/demultiplexers.

Use

This product is primarily used in digital electronic systems for data routing and selection purposes. It acts as a multiplexer, allowing multiple input signals to be transmitted through a single output line, or as a demultiplexer, enabling a single input signal to be routed to one of several output lines.

Characteristics

• High-speed operation: The 74VHCT238AMTR offers fast switching times, making it suitable for applications requiring rapid data transmission.
• Low power consumption: This IC is designed to operate efficiently with low power requirements, making it ideal for battery-powered devices.
• Wide voltage range: It can function within a broad voltage range, typically between 2V and 5.5V, ensuring compatibility with various electronic systems.
• Compact package: The 74VHCT238AMTR is available in a small surface-mount package, facilitating easy integration into circuit boards.

Package and Quantity

The 74VHCT238AMTR is commonly packaged in a Tape & Reel format, which provides protection during shipping and handling. Each reel typically contains a quantity of 2500 units.

Specifications

• Supply Voltage Range: 2V to 5.5V
• Input Voltage Range: 0V to VCC
• Output Voltage Range: 0V to VCC
• Maximum Operating Frequency: 100 MHz
• Number of Inputs: 3
• Number of Outputs: 8
• Logic Family: VHCT

Pin Configuration

The 74VHCT238AMTR features a 16-pin configuration, as follows:

+---+--+---+ A0 --|1 +--+ 16|-- VCC A1 --|2 15|-- Y0 A2 --|3 14|-- Y1 /OE --|4 13|-- Y2 B0 --|5 12|-- Y3 B1 --|6 11|-- Y4 B2 --|7 10|-- Y5 GND --|8 9|-- Y6 +----------+

Functional Features

• Multiplexing: The 74VHCT238AMTR can combine three input signals (A0, A1, and A2) into a single output line (Y0-Y6), based on the control signal (/OE).
• Demultiplexing: It can also route a single input signal to one of the eight output lines, depending on the control signal (/OE).

Advantages and Disadvantages

Advantages

• High-speed operation enables efficient data transmission.
• Low power consumption prolongs battery life in portable devices.
• Wide voltage range ensures compatibility with various systems.
• Compact package facilitates integration into circuit boards.

Disadvantages

• Limited number of inputs and outputs may restrict its application in complex systems.
• Lack of built-in protection features against electrical faults or ESD events.

Working Principles

The 74VHCT238AMTR operates based on the principles of digital logic. When the control signal (/OE) is active (low), the IC functions as a multiplexer, combining the three input signals (A0, A1, and A2) into a single output line (Y0-Y6). Conversely, when the control signal is inactive (high), it acts as a demultiplexer, routing a single input signal to one of the eight output lines.

Application Field Plans

The 74VHCT238AMTR finds applications in various digital electronic systems, including but not limited to: - Data communication networks - Microcontrollers and microprocessors - Industrial automation systems - Consumer electronics - Automotive electronics

Alternative Models

Several alternative models with similar functionality are available in the market. Some notable alternatives to the 74VHCT238AMTR include: - SN74HC238N by Texas Instruments - CD74HC238E by Texas Instruments - MC74HC238N by ON Semiconductor - 74HC238D by NXP Semiconductors

These alternatives can be considered based on specific requirements, availability, pricing, and compatibility with the target system.

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