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Encyclopedia Entry: 74ACT11245DWR
Product Overview
Category
The 74ACT11245DWR belongs to the category of integrated circuits (ICs).
Use
This IC is commonly used in digital electronic systems for signal transmission and amplification purposes.
Characteristics
- The 74ACT11245DWR is a high-speed, octal bus transceiver with tri-state outputs.
- It operates on a wide voltage range, typically between 2V and 6V.
- This IC is designed to provide bidirectional communication between buses operating at different voltage levels.
- It offers low power consumption and high noise immunity.
Package
The 74ACT11245DWR is available in a standard 48-pin TSSOP (Thin Shrink Small Outline Package) package.
Essence
The essence of the 74ACT11245DWR lies in its ability to facilitate efficient and reliable data transfer between different voltage level buses in digital systems.
Packaging/Quantity
This IC is typically sold in reels or tubes containing multiple units. The exact quantity may vary depending on the supplier.
Specifications
- Supply Voltage Range: 2V to 6V
- Input/Output Voltage Levels: TTL-compatible
- Maximum Operating Frequency: 100MHz
- Number of Channels: 8
- Output Drive Capability: ±24mA
- Propagation Delay: 5ns (max)
- Operating Temperature Range: -40°C to +85°C
Detailed Pin Configuration
The 74ACT11245DWR has a total of 48 pins, which are assigned specific functions as follows:
- A1 - Channel A Data Input/Output
- B1 - Channel B Data Input/Output
- GND - Ground
- A2 - Channel A Data Input/Output
- B2 - Channel B Data Input/Output
- GND - Ground
- A3 - Channel A Data Input/Output
- B3 - Channel B Data Input/Output
- GND - Ground
- A4 - Channel A Data Input/Output
- B4 - Channel B Data Input/Output
- GND - Ground
- A5 - Channel A Data Input/Output
- B5 - Channel B Data Input/Output
- GND - Ground
- A6 - Channel A Data Input/Output
- B6 - Channel B Data Input/Output
- GND - Ground
- A7 - Channel A Data Input/Output
- B7 - Channel B Data Input/Output
- GND - Ground
- A8 - Channel A Data Input/Output
- B8 - Channel B Data Input/Output
- GND - Ground
- OEAB - Output Enable for Channels A and B
- VCC - Positive Power Supply
- DIR - Direction Control
- GND - Ground 29-48 - Not Connected
Functional Features
- Bidirectional data transfer between two buses operating at different voltage levels.
- Tri-state outputs allow multiple devices to share the same bus without interference.
- High-speed operation enables efficient data transmission in digital systems.
- TTL-compatible input/output voltage levels ensure compatibility with various logic families.
- Low power consumption makes it suitable for battery-powered applications.
- High noise immunity ensures reliable data transfer even in noisy environments.
Advantages and Disadvantages
Advantages
- Wide supply voltage range allows flexibility in system design.
- Tri-state outputs enable efficient bus sharing.
- High-speed operation facilitates fast data transfer.
- Low power consumption prolongs battery life in portable devices.
- High noise immunity ensures reliable performance.
Disadvantages
- Limited number of channels (8) may not be sufficient for complex systems requiring more connections.
- The 48-pin package may require additional space on the circuit board compared to smaller packages.
Working Principles
The 74ACT11245DWR operates based on the principles of digital logic. It uses a combination of transistors, resistors, and other electronic components to facilitate bidirectional data transfer between two buses operating at different voltage levels. The direction of data flow is controlled by the DIR pin, while the OEAB pin enables or disables the outputs. Tri-state outputs allow multiple devices to share the same bus without causing interference.
Detailed Application Field Plans
The 74ACT11245DWR finds applications in various digital electronic systems, including but not limited to: - Microcontrollers and microprocessors - Data communication systems - Industrial automation - Automotive electronics - Consumer electronics
Detailed and Complete Alternative Models
Some alternative models that can be considered as alternatives to the 74ACT11245DWR are: - SN74ACT11245DW from Texas Instruments - MC74ACT11245DW from
Seznam 10 běžných otázek a odpovědí souvisejících s aplikací 74ACT11245DWR v technických řešeních
Sure! Here are 10 common questions and answers related to the application of 74ACT11245DWR in technical solutions:
Q: What is the 74ACT11245DWR? A: The 74ACT11245DWR is a dual supply octal bus transceiver with configurable voltage translation and 3-state outputs.
Q: What is the purpose of the 74ACT11245DWR? A: The purpose of this IC is to facilitate bidirectional level shifting between two different voltage domains in a digital circuit.
Q: What is the voltage range supported by the 74ACT11245DWR? A: The 74ACT11245DWR supports voltage translation between 2.5V and 5.5V.
Q: How many channels does the 74ACT11245DWR have? A: The 74ACT11245DWR has 8 bidirectional channels, allowing for simultaneous data transmission in both directions.
Q: Can the 74ACT11245DWR handle high-speed data transmission? A: Yes, the 74ACT11245DWR is designed to support high-speed data transmission up to 200 MHz.
Q: Does the 74ACT11245DWR have built-in protection features? A: Yes, it has built-in ESD protection on all inputs and outputs, ensuring robustness against electrostatic discharge.
Q: Can I use the 74ACT11245DWR in mixed-voltage systems? A: Absolutely! The 74ACT11245DWR is commonly used in mixed-voltage systems to enable communication between different voltage levels.
Q: How do I control the direction of data flow using the 74ACT11245DWR? A: The direction of data flow is controlled by the direction control pin (DIR) on the IC. Setting DIR to HIGH or LOW determines the direction.
Q: Can I connect multiple 74ACT11245DWR ICs together? A: Yes, you can connect multiple ICs together to expand the number of bidirectional channels in your system.
Q: Are there any specific layout considerations for using the 74ACT11245DWR? A: Yes, it is recommended to follow the manufacturer's guidelines for proper PCB layout and decoupling to ensure optimal performance and signal integrity.
Please note that these answers are general and may vary depending on the specific application and requirements.