Encyclopedia Entry: 74F646MSA

Product Overview

• Category: Integrated Circuit (IC)
• Use: Data Bus Transceiver
• Characteristics: High-speed, bidirectional data transfer; Compatible with TTL and CMOS logic levels; Low power consumption
• Package: Small Outline Integrated Circuit (SOIC)
• Essence: Facilitates efficient communication between different parts of a digital system
• Packaging/Quantity: Available in reels of 250 units

Specifications

• Technology: Advanced CMOS
• Supply Voltage: 4.5V to 5.5V
• Operating Temperature: -40°C to +85°C
• Data Transfer Rate: Up to 100 Mbps
• Number of Pins: 20

Detailed Pin Configuration

1. A0: Address Input
2. A1: Address Input
3. A2: Address Input
4. A3: Address Input
5. A4: Address Input
6. A5: Address Input
7. A6: Address Input
8. A7: Address Input
9. DIR: Direction Control Input
10. OE: Output Enable Input
11. GND: Ground
12. B0: Data Bus Input/Output
13. B1: Data Bus Input/Output
14. B2: Data Bus Input/Output
15. B3: Data Bus Input/Output
16. B4: Data Bus Input/Output
17. B5: Data Bus Input/Output
18. B6: Data Bus Input/Output
19. B7: Data Bus Input/Output
20. VCC: Power Supply

Functional Features

• Bidirectional data transfer between two independent data buses
• Automatic direction control based on the DIR input
• Output enable control using the OE input
• TTL and CMOS compatible logic levels for seamless integration into various systems
• High-speed operation for efficient data transmission
• Low power consumption for energy-efficient applications

Advantages

• Enables efficient communication between different parts of a digital system
• Supports high-speed data transfer up to 100 Mbps
• Compatible with both TTL and CMOS logic levels, ensuring versatility in system integration
• Low power consumption contributes to energy efficiency

Disadvantages

• Limited number of address inputs (A0-A7)
• Relatively small package size may require careful handling during installation

Working Principles

The 74F646MSA is a bidirectional data bus transceiver that facilitates communication between two independent data buses. The direction of data flow is controlled by the DIR input, while the OE input enables or disables the output. The IC operates at high speeds, allowing for efficient data transfer between different parts of a digital system. It is designed to be compatible with both TTL and CMOS logic levels, ensuring seamless integration into various systems. Additionally, the IC consumes low power, making it suitable for energy-efficient applications.

Detailed Application Field Plans

The 74F646MSA finds application in various digital systems where bidirectional data transfer is required. Some potential fields of application include: 1. Microprocessor-based systems 2. Data communication networks 3. Industrial automation systems 4. Automotive electronics 5. Consumer electronics

Alternative Models

• 74HC646: Similar functionality, but operates at a lower voltage range (2V to 6V)
• 74LS646: Compatible with TTL logic levels, but operates at slower speeds compared to the 74F646MSA

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