Encyclopedia Entry: 74VHC244MTCX

Product Overview

Category

The 74VHC244MTCX belongs to the category of integrated circuits (ICs), specifically, it falls under the family of VHC logic gates.

Use

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

Characteristics

• High-speed operation: The 74VHC244MTCX operates at high speeds, making it suitable for applications requiring fast signal propagation.
• Low power consumption: This IC is designed to consume minimal power, ensuring energy efficiency in electronic systems.
• Wide operating voltage range: It can operate within a wide voltage range, typically between 2V and 5.5V.
• 3-state outputs: The 74VHC244MTCX features 3-state outputs, allowing multiple devices to share a common bus without interference.

Package and Quantity

The 74VHC244MTCX is available in a TSSOP-20 package. Each package contains one IC.

Specifications

• Supply Voltage Range: 2V to 5.5V
• Input Voltage Range: 0V to VCC
• Output Voltage Range: 0V to VCC
• Maximum Operating Frequency: 125 MHz
• Number of Inputs/Outputs: 8

Pin Configuration

The 74VHC244MTCX has a total of 20 pins, arranged as follows:

+---\/---+ A1 -|1 20|- VCC A2 -|2 19|- B1 A3 -|3 18|- B2 A4 -|4 17|- B3 A5 -|5 16|- B4 A6 -|6 15|- B5 A7 -|7 14|- B6 A8 -|8 13|- B7 GND -|9 12|- B8 OE1 -|10 11|- OE2 +--------+

Functional Features

• Non-inverting buffer: The 74VHC244MTCX amplifies and buffers input signals without inverting their logic levels.
• 3-state outputs: It provides three output states - high, low, and high impedance (disconnected), allowing for bus sharing and preventing signal conflicts.
• High-speed operation: This IC ensures fast signal propagation, making it suitable for time-critical applications.

Advantages

• Wide operating voltage range allows compatibility with various digital systems.
• Low power consumption contributes to energy efficiency.
• 3-state outputs enable efficient bus sharing among multiple devices.
• High-speed operation facilitates time-sensitive applications.

Disadvantages

• Limited number of inputs/outputs (8) may restrict its use in complex systems requiring a higher count.

Working Principles

The 74VHC244MTCX operates based on CMOS (Complementary Metal-Oxide-Semiconductor) technology. It utilizes transistors to amplify and buffer input signals while maintaining their logic levels. The 3-state outputs allow the IC to control the flow of signals onto a shared bus, preventing conflicts and ensuring efficient communication between devices.

Application Field Plans

The 74VHC244MTCX finds application in various digital systems, including: 1. Microcontrollers and microprocessors 2. Memory interfaces 3. Data communication systems 4. Industrial automation 5. Automotive electronics

Alternative Models

For those seeking alternative options, the following ICs can be considered: 1. SN74LVC244A: This IC offers similar functionality with a wider operating voltage range. 2. CD74HCT244: It provides compatibility with higher input/output counts but operates at a lower maximum frequency.

In conclusion, the 74VHC244MTCX is a high-speed, low-power octal buffer/line driver IC used in digital electronics. Its non-inverting nature, 3-state outputs, and wide operating voltage range make it suitable for various applications. However, its limited number of inputs/outputs may restrict its use in complex systems.