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SN74BCT245DBR
Product Overview
Category
SN74BCT245DBR belongs to the category of integrated circuits (ICs).
Use
It is commonly used as a bidirectional octal bus transceiver.
Characteristics
- High-speed, low-power CMOS technology
- 8-bit wide bidirectional voltage-level translation
- Non-inverting outputs
- 3-state outputs for bus-oriented applications
- Output current: ±24 mA
- Operating voltage range: 4.5 V to 5.5 V
- Package type: SSOP
- RoHS compliant
Package and Quantity
SN74BCT245DBR is available in an SSOP package. It is typically sold in reels or tubes containing multiple units.
Specifications
Electrical Characteristics
- Supply voltage: 4.5 V to 5.5 V
- Input voltage range: 0 V to VCC
- Output voltage range: 0 V to VCC
- Input/output clamp current: ±20 mA
- Maximum input leakage current: ±1 µA
- Maximum quiescent supply current: 80 µA
Timing Characteristics
- Propagation delay time: 10 ns
- Transition time: 6 ns
- Rise/fall time: 2 ns
Pin Configuration
The SN74BCT245DBR has a total of 20 pins. The pin configuration is as follows:
__ __
A1 |1 `--' 20| VCC
B1 |2 19| OE#
A2 |3 18| B7
B2 |4 17| A7
A3 |5 16| B6
B3 |6 15| A6
A4 |7 14| B5
B4 |8 13| A5
GND |9 12| B5
OE |10 11| A8
``````````
Functional Features
- Bidirectional data transfer between buses with different voltage levels
- Non-inverting outputs allow direct connection to other CMOS devices
- 3-state outputs enable bus-oriented applications
- High-speed operation suitable for time-critical applications
- Low power consumption for energy-efficient designs
Advantages and Disadvantages
Advantages
- Efficient voltage-level translation between buses
- Non-inverting outputs simplify interfacing with other CMOS devices
- 3-state outputs facilitate bus-oriented applications
- High-speed operation enables time-critical tasks
Disadvantages
- Limited operating voltage range (4.5 V to 5.5 V)
- May not be suitable for applications requiring bidirectional communication with voltage levels outside the specified range
Working Principles
The SN74BCT245DBR is designed to provide bidirectional voltage-level translation between two buses. It uses high-speed, low-power CMOS technology to achieve efficient data transfer. The non-inverting outputs allow direct connection to other CMOS devices, while the 3-state outputs enable bus-oriented applications.
Detailed Application Field Plans
SN74BCT245DBR can be used in various applications, including: 1. Microcontroller interfacing 2. Data communication systems 3. Industrial automation 4. Automotive electronics 5. Consumer electronics
Alternative Models
Here are some alternative models that offer similar functionality to SN74BCT245DBR: 1. SN74LVC245A 2. MC74LVX245 3. CD74HCT245
These alternatives can be considered based on specific requirements and availability.
In conclusion, SN74BCT245DBR is a versatile bidirectional octal bus transceiver that provides efficient voltage-level translation. Its high-speed operation, low power consumption, and compatibility with CMOS devices make it suitable for various applications in different industries.
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Enumere 10 preguntas y respuestas comunes relacionadas con la aplicación de SN74BCT245DBR en soluciones técnicas
Sure! Here are 10 common questions and answers related to the application of SN74BCT245DBR in technical solutions:
Q: What is SN74BCT245DBR? A: SN74BCT245DBR 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 SN74BCT245DBR? A: SN74BCT245DBR operates within a voltage range of 4.5V to 5.5V.
Q: How many bidirectional channels does SN74BCT245DBR have? A: SN74BCT245DBR has 8 bidirectional channels, allowing for the transmission of data in both directions.
Q: What is the maximum data transfer rate supported by SN74BCT245DBR? A: SN74BCT245DBR supports a maximum data transfer rate of 25 MHz.
Q: Can SN74BCT245DBR be used for level shifting between different voltage domains? A: Yes, SN74BCT245DBR can be used for level shifting between different voltage domains, as long as the voltage levels are within its operating range.
Q: Does SN74BCT245DBR have built-in protection against overvoltage or ESD events? A: No, SN74BCT245DBR does not have built-in protection against overvoltage or ESD events. External protection measures may be required.
Q: Can SN74BCT245DBR be used in high-speed applications? A: While SN74BCT245DBR supports a maximum data transfer rate of 25 MHz, it may not be suitable for very high-speed applications. Consider the specific requirements of your application.
Q: What is the power supply current consumption of SN74BCT245DBR? A: The power supply current consumption of SN74BCT245DBR varies depending on the operating conditions and load, typically ranging from 10 mA to 50 mA.
Q: Can SN74BCT245DBR be used in both parallel and serial communication systems? A: Yes, SN74BCT245DBR can be used in both parallel and serial communication systems, as it provides bidirectional data transmission.
Q: Are there any specific layout considerations when using SN74BCT245DBR? A: Yes, it is recommended to follow the layout guidelines provided in the datasheet to minimize noise, signal integrity issues, and ensure proper functioning of the device.
Please note that these answers are general and may vary based on specific application requirements. Always refer to the datasheet and consult with an expert for accurate information.