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SN74AS645DWR
Product Overview
Category
SN74AS645DWR belongs to the category of integrated circuits (ICs).
Use
This product is commonly used for signal transmission and level shifting in various electronic devices.
Characteristics
- High-speed operation
- Wide voltage range
- Low power consumption
- Compatibility with TTL logic levels
Package
SN74AS645DWR is available in a standard 20-pin SOIC (Small Outline Integrated Circuit) package.
Essence
The essence of SN74AS645DWR lies in its ability to efficiently transfer signals between different voltage levels, ensuring seamless communication within electronic systems.
Packaging/Quantity
SN74AS645DWR is typically packaged in reels or tubes, with each reel containing 2500 units.
Specifications
- Supply Voltage: 4.5V to 5.5V
- Logic Family: AS
- Number of Channels: 8
- Input Voltage Range: 0V to VCC
- Output Voltage Range: 0V to VCC
- Operating Temperature Range: -40°C to +85°C
Detailed Pin Configuration
- A1 - Channel 1 Input
- B1 - Channel 1 Output
- GND - Ground
- A2 - Channel 2 Input
- B2 - Channel 2 Output
- A3 - Channel 3 Input
- B3 - Channel 3 Output
- VCC - Power Supply
- A4 - Channel 4 Input
- B4 - Channel 4 Output
- A5 - Channel 5 Input
- B5 - Channel 5 Output
- A6 - Channel 6 Input
- B6 - Channel 6 Output
- A7 - Channel 7 Input
- B7 - Channel 7 Output
- A8 - Channel 8 Input
- B8 - Channel 8 Output
- OE - Output Enable
- GND - Ground
Functional Features
- Bidirectional voltage level shifting
- Non-inverting logic translation
- High-speed operation
- TTL-compatible inputs and outputs
- Output enable control for flexible signal routing
Advantages and Disadvantages
Advantages
- Wide voltage range compatibility
- High-speed operation allows for efficient data transfer
- Low power consumption for energy-efficient designs
- Easy integration with existing TTL-based systems
Disadvantages
- Limited number of channels (8)
- Not suitable for applications requiring a higher number of channels
Working Principles
SN74AS645DWR operates by receiving input signals from one voltage domain and translating them to another voltage domain using bidirectional level shifting circuitry. The non-inverting nature of the translation ensures that the output signal maintains the same logical state as the input signal.
Detailed Application Field Plans
SN74AS645DWR finds applications in various electronic systems, including but not limited to: 1. Microcontroller interfacing 2. Data communication systems 3. Industrial automation 4. Automotive electronics 5. Consumer electronics
Detailed and Complete Alternative Models
- SN74LVC245A
- SN74HCT645N
- CD74HC645E
- MC74VHC245DW
- 74ACT645SCX
These alternative models offer similar functionality and can be used as substitutes for SN74AS645DWR depending on specific requirements.
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Seznam 10 běžných otázek a odpovědí souvisejících s aplikací SN74AS645DWR v technických řešeních
Sure! Here are 10 common questions and answers related to the application of SN74AS645DWR in technical solutions:
Q: What is SN74AS645DWR? A: SN74AS645DWR is a type of integrated circuit (IC) commonly used as a bus transceiver or level shifter in digital systems.
Q: What is the voltage range supported by SN74AS645DWR? A: SN74AS645DWR supports a voltage range of 2V to 6V, making it compatible with a wide range of digital systems.
Q: How many bidirectional channels does SN74AS645DWR have? A: SN74AS645DWR has 8 bidirectional channels, allowing for simultaneous data transmission in both directions.
Q: Can SN74AS645DWR be used for level shifting between different voltage domains? A: Yes, SN74AS645DWR can be used as a level shifter to enable communication between devices operating at different voltage levels.
Q: What is the maximum data transfer rate supported by SN74AS645DWR? A: SN74AS645DWR supports high-speed data transfer rates up to 125 MHz, making it suitable for applications requiring fast communication.
Q: Does SN74AS645DWR have any built-in protection features? A: Yes, SN74AS645DWR includes built-in ESD protection diodes to safeguard against electrostatic discharge events.
Q: Can SN74AS645DWR be used in both parallel and serial communication systems? A: Yes, SN74AS645DWR can be used in both parallel and serial communication systems, depending on the configuration and requirements.
Q: Is SN74AS645DWR compatible with different logic families? A: Yes, SN74AS645DWR is compatible with a wide range of logic families, including TTL, CMOS, and LVTTL.
Q: Can SN74AS645DWR be used in automotive applications? A: Yes, SN74AS645DWR is suitable for automotive applications as it meets the necessary requirements for temperature, voltage, and reliability.
Q: Are there any application notes or reference designs available for SN74AS645DWR? A: Yes, Texas Instruments provides application notes and reference designs that can help users understand and implement SN74AS645DWR effectively in their technical solutions.
Please note that the answers provided here are general and may vary depending on specific design considerations and requirements. It is always recommended to refer to the datasheet and consult with the manufacturer for detailed information and guidance.