Encyclopedia Entry: 74VHCT244AMTR

Product Overview

Category

The 74VHCT244AMTR belongs to the category of integrated circuits (ICs) and specifically falls under the family of logic gates.

Use

This IC is commonly used for signal amplification, buffering, and level shifting in digital electronic circuits. It serves as a non-inverting octal buffer/line driver with 3-state outputs.

Characteristics

• Voltage Compatibility: The 74VHCT244AMTR operates at a voltage range of 2.0V to 5.5V, making it suitable for both low and high voltage applications.
• High-Speed Operation: With a propagation delay of only a few nanoseconds, this IC ensures efficient signal transmission.
• 3-State Outputs: The 74VHCT244AMTR features three-state outputs, allowing multiple devices to share a common bus without interference.
• Low Power Consumption: This IC is designed to consume minimal power, making it energy-efficient.

Package and Quantity

The 74VHCT244AMTR is available in a small outline transistor (SOT) package. It is typically sold in reels containing a quantity of 2500 units.

Specifications

• Supply Voltage Range: 2.0V to 5.5V
• Input Voltage Range: 0V to VCC
• Output Voltage Range: 0V to VCC
• Operating Temperature Range: -40°C to +85°C
• Maximum Propagation Delay: 6 ns
• Maximum Quiescent Current: 4 μA

Pin Configuration

The 74VHCT244AMTR has a total of 20 pins, which are arranged as follows:

__ __ A1 -| 01 20 |- VCC A2 -| 02 19 |- B1 A3 -| 03 18 |- B2 A4 -| 04 17 |- B3 A5 -| 05 16 |- B4 A6 -| 06 15 |- B5 A7 -| 07 14 |- B6 A8 -| 08 13 |- B7 GND -| 09 12 |- B8 OE1 -| 10 11 |- OE2 ¯¯ ¯¯

Functional Features

• Non-Inverting Buffer: The 74VHCT244AMTR amplifies and buffers digital signals without inverting their logic levels.
• 3-State Outputs: The IC features three-state outputs, allowing the user to control the output state (high impedance) when not actively driving the bus.
• High-Speed Operation: With a maximum propagation delay of 6 ns, this IC ensures fast and efficient signal transmission.

Advantages and Disadvantages

Advantages

• Wide Voltage Compatibility: Operates within a broad voltage range, making it versatile for various applications.
• Low Power Consumption: Designed to consume minimal power, reducing energy consumption.
• Compact Package: The small outline transistor package allows for space-efficient circuit designs.

Disadvantages

• Limited Output Current: The 74VHCT244AMTR has a relatively low output current capability, which may restrict its use in certain high-current applications.
• Sensitivity to Noise: As with most digital ICs, this device is susceptible to noise interference, requiring proper noise mitigation techniques.

Working Principles

The 74VHCT244AMTR operates based on the principles of CMOS (Complementary Metal-Oxide-Semiconductor) technology. It utilizes a combination of N-channel and P-channel MOSFETs to achieve non-inverting buffering and signal amplification. The three-state outputs allow for bus sharing among multiple devices without signal interference.

Detailed Application Field Plans

The 74VHCT244AMTR finds applications in various digital electronic circuits, including but not limited to: - Microcontrollers - Data communication systems - Memory interfaces - Industrial automation - Automotive electronics

Alternative Models

For users seeking alternative options, the following ICs can be considered: - SN74LV244A: This IC offers similar functionality with a lower voltage range (1.65V to 5.5V). - MC74VHCT244A: A compatible alternative with a wider operating temperature range (-55°C to +125°C).

These alternatives provide similar features and can be used as substitutes depending on specific requirements.

In conclusion, the 74VHCT244AMTR is a versatile logic gate IC that provides non-inverting buffering and signal amplification capabilities. With its wide voltage compatibility, low power consumption, and compact package, it finds applications in various digital electronic circuits. However,