Encyclopedia Entry: 74VHCT08AMTR

Product Overview

Category

The 74VHCT08AMTR belongs to the category of integrated circuits (ICs) and specifically falls under the family of logic gates.

Use

This product is commonly used in digital electronics for logical operations. It serves as a quad 2-input AND gate, allowing for the combination of multiple input signals to produce an output based on the logical AND operation.

Characteristics

• High-speed operation: The 74VHCT08AMTR is designed to operate at high speeds, making it suitable for applications that require quick response times.
• Low power consumption: This IC is known for its low power consumption, making it energy-efficient and suitable for battery-powered devices.
• Wide operating voltage range: The 74VHCT08AMTR can operate within a wide voltage range, typically between 2V and 5.5V, providing flexibility in various electronic systems.
• Schmitt-trigger inputs: It features Schmitt-trigger inputs, which help improve noise immunity and provide hysteresis for better signal integrity.

Package and Quantity

The 74VHCT08AMTR is available in a surface-mount package, specifically the TSSOP-14 package. It is supplied in tape and reel packaging, with a quantity of 2500 units per reel.

Specifications

• Supply Voltage Range: 2V 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: 6 ns (typical)
• Quiescent Current: 1 µA (maximum)

Pin Configuration

The 74VHCT08AMTR has a total of 14 pins, arranged as follows:

+---+--+---+ A1 --|1 +--+ 14|-- VCC B1 --|2 13|-- Y1 A2 --|3 12|-- B4 B2 --|4 11|-- A4 Y2 --|5 74VHCT08AMTR 10|-- B3 GND --|6 9 |-- A3 Y3 --|7 8 |-- B3 +----------+

Functional Features

• Quad 2-input AND gate: The 74VHCT08AMTR consists of four independent 2-input AND gates, allowing for the combination of multiple input signals.
• High-speed operation: It offers fast propagation delay times, enabling efficient processing of logical operations.
• Schmitt-trigger inputs: The Schmitt-trigger inputs enhance noise immunity and provide a more reliable signal detection mechanism.

Advantages and Disadvantages

Advantages

• High-speed operation allows for quick response times in digital circuits.
• Low power consumption makes it suitable for energy-efficient applications.
• Wide operating voltage range provides flexibility in various electronic systems.
• Schmitt-trigger inputs improve noise immunity and signal integrity.

Disadvantages

• Limited to 2-input AND gate functionality, which may not be suitable for all logic operations.
• Surface-mount package may require specialized equipment for soldering and assembly.

Working Principles

The 74VHCT08AMTR operates based on the principles of digital logic. Each 2-input AND gate within the IC compares the logical states of its two input signals and produces an output based on the AND operation. The output will be high (logic level 1) only if both input signals are high; otherwise, the output will be low (logic level 0).

Application Field Plans

The 74VHCT08AMTR finds applications in various digital systems, including but not limited to: - Microcontrollers and microprocessors - Communication systems - Industrial automation - Consumer electronics - Automotive electronics

Alternative Models

There are several alternative models available that offer similar functionality to the 74VHCT08AMTR. Some notable alternatives include: - 74HC08: This IC operates at a higher voltage range (2V to 6V) and is compatible with CMOS logic levels. - SN74LS08: This IC operates at a wider temperature range (-55°C to +125°C) and is known for its robustness in harsh environments.

These alternative models can be considered based on specific application requirements and design constraints.

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