74LVC245ADB,112

Product Overview

Category

The 74LVC245ADB,112 belongs to the category of integrated circuits (ICs) and specifically falls under the group of bus transceivers.

Use

This IC is commonly used for bidirectional level shifting and voltage translation between different logic levels in digital systems. It enables seamless communication between devices operating at different voltage levels.

Characteristics

• Bidirectional voltage translation
• Wide operating voltage range
• High-speed operation
• Low power consumption
• ESD protection on all inputs and outputs

Package

The 74LVC245ADB,112 is available in a small-outline package (SOIC) with 20 pins. This package provides ease of handling and compatibility with standard PCB manufacturing processes.

Essence

The essence of the 74LVC245ADB,112 lies in its ability to facilitate reliable and efficient data transfer between devices operating at different voltage levels, ensuring seamless integration within digital systems.

Packaging/Quantity

The IC is typically supplied in reels or tubes, with each reel containing a specified quantity of units. The exact packaging and quantity may vary depending on the supplier.

Specifications

• Supply voltage: 1.65V to 5.5V
• Input/output voltage range: 0V to VCC
• Maximum input/output current: ±24mA
• Operating temperature range: -40°C to +125°C
• Propagation delay: 4.3ns (typical)
• Output drive capability: 50mA

Detailed Pin Configuration

The 74LVC245ADB,112 has a total of 20 pins, which are assigned specific functions as follows:

1. OE (Output Enable)
2. A1 (Data I/O)
3. B1 (Data I/O)
4. A2 (Data I/O)
5. B2 (Data I/O)
6. A3 (Data I/O)
7. B3 (Data I/O)
8. A4 (Data I/O)
9. B4 (Data I/O)
10. GND (Ground)
11. B5 (Data I/O)
12. A5 (Data I/O)
13. B6 (Data I/O)
14. A6 (Data I/O)
15. B7 (Data I/O)
16. A7 (Data I/O)
17. VCC (Supply Voltage)
18. DIR (Direction Control)
19. B8 (Data I/O)
20. A8 (Data I/O)

Functional Features

• Bidirectional data transfer between two voltage domains
• Automatic direction control based on the DIR pin
• High-speed operation allows for efficient data transmission
• ESD protection ensures robustness against electrostatic discharge
• Low power consumption makes it suitable for battery-powered applications

Advantages and Disadvantages

Advantages

• Enables seamless communication between devices with different voltage levels
• Wide operating voltage range provides flexibility in system design
• High-speed operation allows for efficient data transfer
• ESD protection ensures reliability in harsh environments
• Low power consumption prolongs battery life in portable devices

Disadvantages

• May require additional external components for certain applications
• Limited number of data input/output pins may restrict its use in complex systems

Working Principles

The 74LVC245ADB,112 operates by utilizing a bidirectional voltage translation technique. It consists of internal circuitry that automatically controls the direction of data flow based on the DIR pin's logic level. When the DIR pin is set to a specific logic level, the IC enables data transfer from one voltage domain to another.

Detailed Application Field Plans

The 74LVC245ADB,112 finds extensive application in various digital systems, including but not limited to: - Microcontroller interfacing - Level shifting in communication protocols (e.g., I2C, SPI) - Logic level conversion in mixed-voltage systems - Data transfer between different voltage domains

Detailed and Complete Alternative Models

Some alternative models that offer similar functionality to the 74LVC245ADB,112 include: - SN74LVC245A - MC74LVX245 - CD74HCT245

These alternatives can be considered based on specific requirements, availability, and compatibility with the target system.

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