Encyclopedia Entry: 74FCT245ATPGG8

Product Overview

Category

The 74FCT245ATPGG8 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 these buses.

Characteristics

• Bidirectional data transfer
• Voltage level translation
• High-speed operation
• Low power consumption

Package

The 74FCT245ATPGG8 comes in a 20-pin TSSOP (Thin Shrink Small Outline Package) package. This package offers a compact size and easy integration onto circuit boards.

Essence

The essence of the 74FCT245ATPGG8 lies in its ability to facilitate efficient and reliable data transfer between buses operating at different voltage levels.

Packaging/Quantity

The 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.

Specifications

• Supply Voltage: 4.5V to 5.5V
• Input Voltage Levels: 0V to VCC
• Output Voltage Levels: 0V to VCC
• Operating Temperature Range: -40°C to +85°C
• Maximum Data Rate: X Mbps
• Propagation Delay: Y ns

Detailed Pin Configuration

The 74FCT245ATPGG8 has a total of 20 pins, each serving a specific function. The pin configuration is as follows:

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

Functional Features

• Bidirectional data transfer between two buses
• Automatic voltage level translation
• High-speed operation for efficient data transfer
• Output enable and direction control for flexible control over data flow

Advantages and Disadvantages

Advantages

• Enables seamless communication between buses with different voltage levels
• Compact package size allows for easy integration into circuit designs
• Low power consumption for energy-efficient operation
• High-speed performance ensures fast data transfer

Disadvantages

• Limited to bidirectional data transfer only
• May require additional components for more complex bus configurations

Working Principles

The 74FCT245ATPGG8 operates by monitoring the direction control signal (DIR) to determine the data flow direction. When the DIR signal is set to a specific state, the IC enables bidirectional data transfer between the two buses. The output enable signal (OE) controls whether the IC actively drives the buses or enters a high-impedance state.

Detailed Application Field Plans

The 74FCT245ATPGG8 finds applications in various fields where bidirectional data transfer between buses with different voltage levels is required. Some 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

• 74HC245: Similar bidirectional bus transceiver with different voltage specifications.
• SN74LVC245A: Low-voltage CMOS bus transceiver with similar functionality.
• CD74HCT245: High-speed CMOS bus transceiver with comparable characteristics.

These alternative models offer similar features and can be considered as substitutes for the 74FCT245ATPGG8 depending on specific requirements.

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