Encyclopedia Entry: 74LVX245M

Product Overview

Category

The 74LVX245M belongs to the category of integrated circuits (ICs), specifically a type of digital logic level shifter.

Use

This IC is commonly used for voltage level shifting in digital systems. It allows for bidirectional communication between devices operating at different voltage levels.

Characteristics

• Voltage Level Shifting: The 74LVX245M can shift signals between two voltage domains, making it suitable for interfacing devices with different voltage requirements.
• Bidirectional Communication: It supports data transmission in both directions, enabling seamless communication between devices.
• High-Speed Operation: This IC operates at high speeds, making it suitable for applications requiring fast data transfer.
• Low Power Consumption: The 74LVX245M is designed to consume minimal power, ensuring efficient energy usage.
• Wide Operating Voltage Range: It can handle a wide range of input and output voltage levels, providing flexibility in various applications.

Package and Quantity

The 74LVX245M is available in a standard 20-pin SOIC (Small Outline Integrated Circuit) package. It is typically sold in reels or tubes containing multiple units.

Specifications

• Supply Voltage Range: 2.0V to 5.5V
• Input Voltage Range: GND to VCC
• Output Voltage Range: GND to VCC
• Maximum Input Current: ±10mA
• Maximum Output Current: ±32mA
• Operating Temperature Range: -40°C to +85°C

Pin Configuration

The 74LVX245M has a total of 20 pins, which are assigned specific functions as follows:

1. OE (Output Enable) - Output Enable Control
2. A1 - Data Input/Output Channel A1
3. I/O1A - Bidirectional Data I/O Channel A
4. I/O2A - Bidirectional Data I/O Channel A
5. GND - Ground
6. I/O3A - Bidirectional Data I/O Channel A
7. I/O4A - Bidirectional Data I/O Channel A
8. VCC - Positive Power Supply
9. B1 - Data Input/Output Channel B1
10. I/O1B - Bidirectional Data I/O Channel B
11. I/O2B - Bidirectional Data I/O Channel B
12. GND - Ground
13. I/O3B - Bidirectional Data I/O Channel B
14. I/O4B - Bidirectional Data I/O Channel B
15. B2 - Data Input/Output Channel B2
16. DIR (Direction Control) - Direction Control
17. GND - Ground
18. NC (No Connection) - No Connection
19. VCC - Positive Power Supply
20. OE (Output Enable) - Output Enable Control

Functional Features

The 74LVX245M offers the following functional features:

• Bidirectional Voltage Level Shifting: It allows for bidirectional data transmission between devices operating at different voltage levels.
• Direction Control: The DIR pin controls the direction of data flow, enabling flexible communication between devices.
• Output Enable Control: The OE pin enables or disables the outputs, providing control over the data transmission.

Advantages and Disadvantages

Advantages

• Efficient Voltage Level Shifting: The 74LVX245M ensures reliable and accurate voltage level shifting, minimizing signal distortion.
• High-Speed Operation: It supports high-speed data transfer, making it suitable for time-critical applications.
• Low Power Consumption: This IC consumes minimal power, contributing to energy efficiency in electronic systems.
• Versatile Application: The bidirectional communication capability and wide voltage range make it applicable in various digital systems.

Disadvantages

• Limited Voltage Range: The 74LVX245M has a maximum operating voltage of 5.5V, which may not be suitable for certain high-voltage applications.
• Sensitivity to ESD: Like most integrated circuits, the 74LVX245M is sensitive to electrostatic discharge (ESD) and requires proper handling to prevent damage.

Working Principles

The 74LVX245M operates based on the principles of voltage level shifting and bidirectional data transmission. It utilizes internal circuitry to convert signals between two voltage domains while maintaining data integrity. The DIR pin controls the direction of data flow, and the OE pin enables or disables the outputs as needed.

Application Field Plans

The 74LVX245M finds application in various digital systems that require voltage level shifting and bidirectional communication. Some specific application fields include:

1. Microcontroller Interfacing: It facilitates communication between microcontrollers operating at different voltage levels.
2. Sensor Networks: The IC enables connectivity between sensors and control units with varying voltage requirements.
3. Display Systems: It allows for data transfer between display modules and driving