Encyclopedia Entry: 74FCT2245ATQG

Product Overview

Category

The 74FCT2245ATQG belongs to the category of integrated circuits (ICs) and specifically falls under the family of bus transceivers.

Use

This IC is commonly used for bidirectional data communication between two buses with different voltage levels. It acts as a buffer, allowing data transmission in both directions.

Characteristics

• Bidirectional data transfer
• Voltage level translation
• High-speed operation
• Low power consumption
• Robust design for noise immunity

Package

The 74FCT2245ATQG is available in a Quad Flat Package (QFP), which provides a compact and reliable housing for the integrated circuit.

Essence

The essence of the 74FCT2245ATQG lies in its ability to facilitate seamless data transfer between buses operating at different voltage levels, ensuring compatibility and efficient communication.

Packaging/Quantity

This IC is typically packaged in reels or tubes, containing a specific quantity per package. The exact packaging and quantity may vary depending on the manufacturer and supplier.

Specifications

• Supply Voltage: 2.0V - 5.5V
• Data Transfer Rate: Up to 200 Mbps
• Number of Channels: 8
• Input/Output Voltage Levels: TTL/CMOS
• Operating Temperature Range: -40°C to +85°C
• Package Type: QFP

Detailed Pin Configuration

The 74FCT2245ATQG has a total of 20 pins, each serving a specific function. The pin configuration is as follows:

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

Functional Features

• Bidirectional data transfer: Allows data to be transmitted in both directions between two buses.
• Voltage level translation: Facilitates communication between buses operating at different voltage levels.
• Output enable control: Enables or disables the output buffers, providing flexibility in data transmission.
• Direction control: Determines the direction of data flow between the buses.

Advantages and Disadvantages

Advantages

• High-speed operation: Supports data transfer rates of up to 200 Mbps, ensuring efficient communication.
• Low power consumption: Helps conserve energy and prolongs battery life in portable devices.
• Robust design for noise immunity: Resistant to external noise interference, ensuring reliable data transmission.
• Compact package: The QFP package offers space-saving benefits and ease of integration into various electronic systems.

Disadvantages

• Limited number of channels: The 74FCT2245ATQG provides 8 channels, which may not be sufficient for applications requiring a higher number of data lines.
• Temperature limitations: The operating temperature range of -40°C to +85°C may restrict its use in extreme temperature environments.

Working Principles

The 74FCT2245ATQG operates based on the principles of voltage level translation and bidirectional data transfer. It utilizes internal circuitry to convert the voltage levels of incoming data from one bus to match the voltage requirements of the other bus. The direction control signal determines the flow of data between the buses, while the output enable signal enables or disables the output buffers.

Detailed Application Field Plans

The 74FCT2245ATQG finds applications in various fields where bidirectional data communication between buses with different voltage levels is required. Some specific application areas include:

1. Industrial automation: Facilitating communication between different subsystems operating at varying voltage levels.
2. Automotive electronics: Enabling data exchange between different vehicle systems with different voltage requirements.
3. Telecommunications: Supporting data transmission between different network interfaces.
4. Consumer electronics: Allowing compatibility between devices operating at different voltage levels, such as smartphones and peripherals.

Detailed and Complete Alternative Models

• 74ACT245: Similar bidirectional bus transceiver IC with 8 channels, operating at a supply voltage range of 4.5V - 5