Encyclopedia Entry: 74LVT244WM

Product Overview

Category

The 74LVT244WM 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 signal amplification, buffering, and level shifting purposes. It serves as a bidirectional octal buffer/line driver with 3-state outputs.

Characteristics

• Voltage Compatibility: The 74LVT244WM operates at a voltage range of 2.7V to 3.6V, making it suitable for low-power applications.
• High-Speed Operation: It offers fast propagation delay times, enabling efficient data transmission.
• 3-State Outputs: The device features three-state outputs, allowing multiple devices to share a common bus without interference.
• Low Power Consumption: With its low power dissipation, the 74LVT244WM minimizes energy consumption.

Package and Quantity

The 74LVT244WM is available in a small-outline integrated circuit (SOIC) package. Each package contains one unit of the IC.

Specifications

• Supply Voltage Range: 2.7V to 3.6V
• Input Voltage Range: 0V to VCC
• Output Voltage Range: 0V to VCC
• Operating Temperature Range: -40°C to +85°C
• Maximum Propagation Delay Time: 5.5 ns
• Maximum Quiescent Current: 10 μA

Pin Configuration

The 74LVT244WM has a total of 20 pins, which are assigned specific functions. Here is the detailed pin configuration:

1. GND: Ground
2. A1: Input/Output
3. Y1: Output
4. A2: Input/Output
5. Y2: Output
6. A3: Input/Output
7. Y3: Output
8. A4: Input/Output
9. Y4: Output
10. A5: Input/Output
11. Y5: Output
12. A6: Input/Output
13. Y6: Output
14. A7: Input/Output
15. Y7: Output
16. A8: Input/Output
17. Y8: Output
18. OE: Output Enable
19. VCC: Power Supply
20. GND: Ground

Functional Features

• Bidirectional Buffering: The 74LVT244WM allows data transmission in both directions, making it suitable for bidirectional communication systems.
• High-Speed Operation: With its fast propagation delay times, the IC ensures efficient signal transmission in time-critical applications.
• 3-State Outputs: The three-state outputs enable multiple devices to share a common bus without causing conflicts or signal degradation.
• Low Power Consumption: The IC's low power dissipation helps reduce energy consumption and heat generation.

Advantages and Disadvantages

Advantages

• Wide voltage compatibility range
• Fast propagation delay times
• 3-state outputs for bus sharing
• Low power consumption

Disadvantages

• Limited operating temperature range (-40°C to +85°C)
• Requires external pull-up resistors for proper operation

Working Principles

The 74LVT244WM operates based on the principles of digital logic gates. It consists of eight buffer/driver circuits that can be independently controlled using the input pins. The IC amplifies and buffers incoming signals, ensuring their integrity during transmission. The output enable pin (OE) controls the activation of the buffer circuits, allowing bidirectional data flow when enabled.

Application Field Plans

The 74LVT244WM finds extensive use in various digital systems, including: - Microprocessors and microcontrollers - Data communication systems - Memory interfaces - Industrial automation equipment - Automotive electronics

Alternative Models

For similar functionality, the following alternative models can be considered: - 74HC244: A high-speed CMOS octal buffer/line driver with 3-state outputs. - SN74LVC244A: A low-voltage CMOS octal buffer/line driver with 3-state outputs.

These alternatives provide comparable features and can be used as substitutes for the 74LVT244WM in different applications.

In conclusion, the 74LVT244WM is a versatile integrated circuit that serves as a bidirectional octal buffer/line driver. With its wide voltage compatibility, high-speed operation, and low power consumption, it finds applications in various digital systems. However, it has limited operating temperature range and requires external pull-up resistors. The IC's detailed pin configuration, functional features, working principles, application field plans, and alternative models make it a valuable component in the field of digital electronics.

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