Encyclopedia Entry: 74ACTQ245QSCX

Product Overview

Category

The 74ACTQ245QSCX belongs to the category of integrated circuits (ICs) and specifically falls under the family of bus transceivers.

Use

This IC is primarily used for bidirectional data transfer between two buses with different voltage levels. It acts as a buffer, allowing seamless communication between systems operating at different voltage levels.

Characteristics

• Bidirectional voltage level translation
• High-speed operation
• Low power consumption
• Wide operating voltage range
• ESD protection on all pins

Package

The 74ACTQ245QSCX is available in a small outline package (SOIC) with 20 pins.

Essence

The essence of this IC lies in its ability to facilitate efficient data transfer between buses operating at different voltage levels, ensuring compatibility and reliable communication.

Packaging/Quantity

The 74ACTQ245QSCX is typically packaged in reels or tubes, with each reel containing 2500 units.

Specifications

• Supply Voltage Range: 2.0V to 6.0V
• Input Voltage Range: -0.5V to VCC + 0.5V
• Output Voltage Range: 0V to VCC
• Operating Temperature Range: -40°C to +85°C
• Maximum Propagation Delay: 7ns
• Maximum Quiescent Current: 10μA

Detailed Pin Configuration

The 74ACTQ245QSCX has a total of 20 pins, which are assigned specific functions. The pin configuration is as follows:

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

Functional Features

• Bidirectional data transfer between two buses with different voltage levels
• Automatic direction control based on the DIR pin
• High-speed operation allows for efficient data transmission
• ESD protection on all pins ensures robustness and reliability
• Low power consumption makes it suitable for battery-powered devices

Advantages and Disadvantages

Advantages

• Enables seamless communication between systems operating at different voltage levels
• Provides bidirectional data transfer capability
• Offers ESD protection on all pins, enhancing reliability
• Supports high-speed operation for efficient data transmission
• Wide operating voltage range allows for versatile applications

Disadvantages

• Limited to 8-bit data transfer
• Requires careful consideration of voltage level compatibility between the two buses

Working Principles

The 74ACTQ245QSCX operates by monitoring the DIR pin, which controls the direction of data flow. When the DIR pin is set to a specific logic level, the IC enables bidirectional data transfer between the two buses. The voltage level translation is achieved through internal circuitry, ensuring compatibility between the input and output signals.

Detailed Application Field Plans

The 74ACTQ245QSCX finds applications in various fields where bidirectional data transfer between buses with different voltage levels is required. Some of the specific application areas include:

1. Industrial automation systems
2. Automotive electronics
3. Communication equipment
4. Consumer electronics
5. Medical devices

Detailed and Complete Alternative Models

1. SN74LVC245A: This IC offers similar functionality with a lower operating voltage range.
2. MC74LVX245: Provides bidirectional voltage level translation with enhanced ESD protection.
3. CD74HCT245: Offers compatibility with higher voltage levels and wider temperature range.

These alternative models can be considered based on specific requirements and constraints.

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