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Encyclopedia Entry: 74ABT245DB,112
Product Overview
- Category: Integrated Circuit (IC)
- Use: Level shifting and signal buffering
- Characteristics: High-speed, low-power consumption
- Package: Dual in-line package (DIP)
- Essence: Bi-directional octal bus transceiver
- Packaging/Quantity: Tape and reel, 2500 units per reel
Specifications
- Supply Voltage Range: 4.5V to 5.5V
- Input Voltage Range: 0V to VCC
- Output Voltage Range: 0V to VCC
- Operating Temperature Range: -40°C to +85°C
- Propagation Delay Time: 3.8ns (max)
- Output Current: ±24mA
- Input Capacitance: 4pF
- Output Capacitance: 8pF
Detailed Pin Configuration
The 74ABT245DB,112 IC has a total of 20 pins, which are divided into two groups: - Group A (pins 1-10): These pins are used for data input/output and control signals. - Group B (pins 11-20): These pins are used for power supply and ground connections.
Pin configuration for Group A: 1. OE (Output Enable) - Active Low Output Enable 2. DIR (Direction Control) - Direction Control Input 3. A1 - Data Input/Output Bit 1 4. A2 - Data Input/Output Bit 2 5. A3 - Data Input/Output Bit 3 6. A4 - Data Input/Output Bit 4 7. A5 - Data Input/Output Bit 5 8. A6 - Data Input/Output Bit 6 9. A7 - Data Input/Output Bit 7 10. A8 - Data Input/Output Bit 8
Pin configuration for Group B: 11. GND (Ground) - Ground Connection 12. B1 - Data Input/Output Bit 1 13. B2 - Data Input/Output Bit 2 14. B3 - Data Input/Output Bit 3 15. B4 - Data Input/Output Bit 4 16. B5 - Data Input/Output Bit 5 17. B6 - Data Input/Output Bit 6 18. B7 - Data Input/Output Bit 7 19. B8 - Data Input/Output Bit 8 20. VCC (Supply Voltage) - Power Supply Connection
Functional Features
- Bi-directional data transfer between two buses
- Non-inverting outputs
- Output enable and direction control for flexible operation
- High-speed operation with minimal propagation delay
- Low power consumption
Advantages and Disadvantages
Advantages: - Fast data transfer speed - Low power consumption - Bi-directional functionality - Flexible control options
Disadvantages: - Limited voltage range (4.5V to 5.5V) - Relatively small input/output capacitance
Working Principles
The 74ABT245DB,112 is a bi-directional octal bus transceiver that allows for the bidirectional transfer of data between two buses. It operates by enabling the appropriate direction control signal (DIR) and output enable signal (OE). When DIR is set to logic high, data flows from pins A1-A8 to pins B1-B8. Conversely, when DIR is set to logic low, data flows from pins B1-B8 to pins A1-A8. The output enable signal (OE) controls the tri-state outputs, allowing for the isolation of the IC from the bus when necessary.
Detailed Application Field Plans
The 74ABT245DB,112 IC finds applications in various fields where level shifting and signal buffering are required. Some common application areas include: - Data communication systems - Industrial automation - Automotive electronics - Consumer electronics - Embedded systems
Detailed and Complete Alternative Models
- SN74ABT245DWR: Similar bi-directional octal bus transceiver with different package (SOIC)
- MC74ABT245DW: Bi-directional octal bus transceiver with similar specifications and package (SOIC)
- CD74ABT245M96: Octal bus transceiver with tri-state outputs and similar characteristics (SSOP)
Note: The above alternative models are provided as examples and may not cover the entire range of alternatives available.
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Seznam 10 běžných otázek a odpovědí souvisejících s aplikací 74ABT245DB,112 v technických řešeních
Sure! Here are 10 common questions and answers related to the application of 74ABT245DB,112 in technical solutions:
Q: What is the function of the 74ABT245DB,112? A: The 74ABT245DB,112 is an octal bus transceiver with 3-state outputs. It allows bidirectional transfer of data between different voltage levels.
Q: What is the maximum operating voltage for the 74ABT245DB,112? A: The maximum operating voltage for the 74ABT245DB,112 is typically 5.5V.
Q: Can the 74ABT245DB,112 handle level shifting between different voltage domains? A: Yes, the 74ABT245DB,112 is designed to handle level shifting between different voltage domains, making it suitable for interfacing between devices operating at different voltages.
Q: How many data lines can the 74ABT245DB,112 handle? A: The 74ABT245DB,112 can handle 8 bidirectional data lines.
Q: Does the 74ABT245DB,112 have 3-state outputs? A: Yes, the 74ABT245DB,112 has 3-state outputs, which means it can effectively disconnect the output from the bus when not in use.
Q: What is the maximum data transfer rate supported by the 74ABT245DB,112? A: The maximum data transfer rate supported by the 74ABT245DB,112 is typically around 200 MHz.
Q: Can the 74ABT245DB,112 be used in both parallel and serial communication systems? A: Yes, the 74ABT245DB,112 can be used in both parallel and serial communication systems, depending on the specific application requirements.
Q: Is the 74ABT245DB,112 compatible with TTL logic levels? A: Yes, the 74ABT245DB,112 is compatible with TTL logic levels, making it suitable for interfacing with TTL-based devices.
Q: Can the 74ABT245DB,112 be used in high-speed data transfer applications? A: Yes, the 74ABT245DB,112 is designed for high-speed operation, making it suitable for high-speed data transfer applications.
Q: Are there any specific precautions to consider when using the 74ABT245DB,112? A: It is important to ensure proper power supply decoupling and signal integrity considerations when using the 74ABT245DB,112 to maintain reliable operation and minimize noise-related issues.
Please note that the answers provided here are general and may vary based on specific datasheet specifications and application requirements.