Encyclopedia Entry: 74HCT244PW,112

Product Overview

Category

The 74HCT244PW,112 belongs to the category of integrated circuits (ICs). Specifically, it falls under the category of logic gates.

Use

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

Characteristics

• Non-inverting buffer/line driver
• 3-state outputs
• High-speed operation
• Wide operating voltage range
• Low power consumption
• Schmitt-trigger action on all inputs

Package and Quantity

The 74HCT244PW,112 is available in a TSSOP (Thin Shrink Small Outline Package) package. It is supplied in tape and reel packaging, with a quantity of 2500 units per reel.

Specifications

• Supply Voltage Range: 4.5V to 5.5V
• Input Voltage Range: 0V to VCC
• Output Voltage Range: 0V to VCC
• Operating Temperature Range: -40°C to +125°C
• Maximum Propagation Delay: 17 ns
• Maximum Quiescent Current: 8 μA

Pin Configuration

The 74HCT244PW,112 has a total of 20 pins, which are arranged as follows:

__ __ A1 | 1 20 | VCC A2 | 2 19 | OE# B1 | 3 18 | I/O1 B2 | 4 17 | I/O2 C1 | 5 16 | I/O3 C2 | 6 15 | I/O4 D1 | 7 14 | I/O5 D2 | 8 13 | I/O6 GND | 9 12 | I/O7 NC |10 11 | I/O8 ‾‾ ‾‾

Functional Features

The 74HCT244PW,112 offers the following functional features:

• Non-inverting buffer/line driver: It amplifies and buffers digital signals without changing their logic levels.
• 3-state outputs: The outputs can be put into a high-impedance state, allowing multiple devices to share a common bus.
• High-speed operation: It operates at a fast switching speed, making it suitable for high-frequency applications.
• Wide operating voltage range: It can operate within a wide range of supply voltages, providing flexibility in various circuit designs.
• Low power consumption: The IC consumes minimal power, contributing to energy-efficient designs.
• Schmitt-trigger action on all inputs: This feature ensures improved noise immunity and hysteresis.

Advantages and Disadvantages

Advantages

• Versatile functionality as a buffer/line driver
• 3-state outputs enable bus sharing
• High-speed operation suitable for high-frequency applications
• Wide operating voltage range allows for flexible design options
• Low power consumption contributes to energy efficiency
• Schmitt-trigger action enhances noise immunity

Disadvantages

• Limited number of input/output channels (8 in total)
• Requires careful consideration of signal levels and compatibility with other components in the circuit

Working Principles

The 74HCT244PW,112 operates based on the principles of digital logic. It receives digital input signals and amplifies them while maintaining their logic levels. The non-inverting nature of the device ensures that the output signal matches the input signal. The 3-state outputs allow the device to be effectively disconnected from the bus, preventing conflicts when multiple devices share the same communication line.

Application Field Plans

The 74HCT244PW,112 finds applications in various digital electronic circuits, including but not limited to:

1. Microprocessor systems
2. Data communication systems
3. Industrial automation
4. Automotive electronics
5. Consumer electronics

Alternative Models

For those seeking alternative models with similar functionality, the following options are available:

1. SN74HCT244N by Texas Instruments
2. MC74HCT244AN by ON Semiconductor
3. CD74HCT244E by Texas Instruments
4. 74HCT244D by NXP Semiconductors

These alternatives offer comparable features and can be considered based on specific requirements and availability.

In conclusion, the 74HCT244PW,112 is a versatile logic gate IC that serves as a non-inverting octal buffer/line driver. With its high-speed operation, wide operating voltage range, and low power consumption, it finds applications in various digital electronic circuits. While it has limitations in terms of input/output channels, careful consideration of signal levels and compatibility