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SN74BCT245PWG4
Product Overview
Category
SN74BCT245PWG4 belongs to the category of integrated circuits (ICs).
Use
It is commonly used as a bidirectional octal bus transceiver.
Characteristics
- Bidirectional data transfer between buses
- Voltage-level translation
- 3-state outputs for bus isolation
- High-speed operation
- Wide operating voltage range
Package
SN74BCT245PWG4 is available in a 20-pin TSSOP package.
Essence
The essence of SN74BCT245PWG4 lies in its ability to facilitate efficient and reliable bidirectional data transfer between buses, while also providing voltage-level translation and bus isolation.
Packaging/Quantity
SN74BCT245PWG4 is typically packaged in reels or tubes, with a quantity of 2500 units per reel/tube.
Specifications
- Supply voltage: 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
- Maximum propagation delay: 10ns
- Maximum output current: ±24mA
Detailed Pin Configuration
- OE (Output Enable)
- A1 (Data Input/Output)
- B1 (Data Input/Output)
- A2 (Data Input/Output)
- B2 (Data Input/Output)
- A3 (Data Input/Output)
- B3 (Data Input/Output)
- A4 (Data Input/Output)
- B4 (Data Input/Output)
- GND (Ground)
- B5 (Data Input/Output)
- A5 (Data Input/Output)
- B6 (Data Input/Output)
- A6 (Data Input/Output)
- B7 (Data Input/Output)
- A7 (Data Input/Output)
- DIR (Direction Control)
- VCC (Supply Voltage)
- B8 (Data Input/Output)
- A8 (Data Input/Output)
Functional Features
- Bidirectional data transfer: SN74BCT245PWG4 allows data to be transferred bidirectionally between two buses.
- Voltage-level translation: It ensures compatibility between buses operating at different voltage levels.
- 3-state outputs: The device offers 3-state outputs, enabling bus isolation when necessary.
- High-speed operation: SN74BCT245PWG4 operates at high speeds, facilitating efficient data transfer.
- Wide operating voltage range: It can operate within a wide voltage range, making it versatile for various applications.
Advantages and Disadvantages
Advantages
- Efficient bidirectional data transfer
- Voltage-level translation capability
- Bus isolation through 3-state outputs
- High-speed operation
- Versatile operating voltage range
Disadvantages
- Limited number of input/output pins (8 in total)
- Requires external control signals for direction control
Working Principles
SN74BCT245PWG4 works by receiving data from one bus and transmitting it to the other bus bidirectionally. The direction of data transfer is controlled by the DIR pin. When DIR is set to logic high, data flows from A1-A8 to B1-B8, and when DIR is set to logic low, data flows from B1-B8 to A1-A8. The device also performs voltage-level translation to ensure compatibility between buses operating at different voltage levels.
Detailed Application Field Plans
SN74BCT245PWG4 finds applications in various fields where bidirectional data transfer and voltage-level translation are required. Some of the common application areas include: - Microcontroller interfacing - Data communication systems - Industrial automation - Automotive electronics - Consumer electronics
Detailed and Complete Alternative Models
- SN74LVC245APW - Octal bus transceiver with 3-state outputs
- SN74HCT245N - Octal bus transceiver with non-inverting outputs
- SN74LVCH245ADGVR - Octal bus transceiver with voltage-level translation
- SN74ACT245DWR - Octal bus transceiver with faster switching speeds
These alternative models offer similar functionality to SN74BCT245PWG4 but may have different characteristics, package options, or performance specifications.
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Перелічіть 10 типових запитань і відповідей, пов’язаних із застосуванням SN74BCT245PWG4 у технічних рішеннях
Sure! Here are 10 common questions and answers related to the application of SN74BCT245PWG4 in technical solutions:
Q: What is SN74BCT245PWG4? A: SN74BCT245PWG4 is a bidirectional octal bus transceiver with 3-state outputs, commonly used for level shifting and voltage translation in digital systems.
Q: What is the operating voltage range of SN74BCT245PWG4? A: SN74BCT245PWG4 operates within a voltage range of 4.5V to 5.5V.
Q: How many bidirectional channels does SN74BCT245PWG4 have? A: SN74BCT245PWG4 has 8 bidirectional channels, allowing data transmission in both directions.
Q: What is the maximum data transfer rate supported by SN74BCT245PWG4? A: SN74BCT245PWG4 supports a maximum data transfer rate of 24 MHz.
Q: Can SN74BCT245PWG4 be used for level shifting between different voltage domains? A: Yes, SN74BCT245PWG4 can be used for level shifting between different voltage domains, as long as the operating voltage range is within the specified limits.
Q: Does SN74BCT245PWG4 have built-in protection features? A: No, SN74BCT245PWG4 does not have built-in protection features. External protection components may be required depending on the application.
Q: Can SN74BCT245PWG4 be used for bi-directional communication between microcontrollers and peripherals? A: Yes, SN74BCT245PWG4 can be used for bi-directional communication between microcontrollers and peripherals, allowing data transfer in both directions.
Q: What is the output current drive capability of SN74BCT245PWG4? A: SN74BCT245PWG4 has a typical output current drive capability of ±24 mA.
Q: Can SN74BCT245PWG4 be used in high-speed applications? A: While SN74BCT245PWG4 supports a maximum data transfer rate of 24 MHz, it may not be suitable for very high-speed applications. Consider using other specialized ICs for such requirements.
Q: Are there any specific layout considerations for using SN74BCT245PWG4? A: Yes, it is recommended to follow the layout guidelines provided in the datasheet to minimize noise, ensure signal integrity, and optimize performance when using SN74BCT245PWG4.
Please note that these answers are general and may vary depending on the specific application and requirements. Always refer to the datasheet and consult with an expert for accurate information.