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PCA9546APWRG4
Product Overview
- Category: Integrated Circuit (IC)
- Use: I2C and SMBus Multiplexer
- Characteristics: Low voltage, low power consumption, multiple channels
- Package: TSSOP-16
- Essence: The PCA9546APWRG4 is a multiplexer/demultiplexer that enables the user to connect multiple I2C or SMBus devices to a single host controller.
- Packaging/Quantity: Tape and Reel, 2500 units per reel
Specifications
- Voltage Supply: 1.65V to 5.5V
- Channels: 4
- I2C Bus Frequency: Up to 400kHz
- Operating Temperature: -40°C to 85°C
Detailed Pin Configuration
The PCA9546APWRG4 has a total of 16 pins. The pin configuration is as follows: 1. SCL/EN 2. SDA 3. Channel 0 4. Channel 1 5. Channel 2 6. Channel 3 7. GND 8. GND 9. GND 10. ADDR 11. VCC 12. SCL0 13. SDA0 14. SCL1 15. SDA1 16. GND
Functional Features
- Allows for the connection of multiple I2C or SMBus devices to a single host controller
- Enables communication with individual devices through channel selection
- Low voltage operation suitable for portable applications
- Low standby current consumption
Advantages and Disadvantages
Advantages
- Simplifies I2C/SMBus bus management in complex systems
- Low power consumption
- Wide operating voltage range
Disadvantages
- Limited to 4 channels, may not be suitable for larger systems
- Requires careful consideration of addressing when multiple multiplexers are used in a system
Working Principles
The PCA9546APWRG4 operates by selectively connecting the I2C or SMBus lines from the master device to one of the four channels. This allows the master device to communicate with individual slave devices connected to each channel.
Detailed Application Field Plans
The PCA9546APWRG4 is commonly used in applications where multiple I2C or SMBus devices need to be interfaced with a single host controller. Some common application fields include: - Sensor networks - Industrial automation - Consumer electronics - Medical devices
Detailed and Complete Alternative Models
Some alternative models to the PCA9546APWRG4 include: - PCA9543APW, which offers 2 channels instead of 4 - TCA9548A, which provides 8 channels for larger systems - ADG3304, a similar multiplexer with different package options
In conclusion, the PCA9546APWRG4 is a versatile multiplexer/demultiplexer IC that simplifies the management of I2C and SMBus devices in various applications. Its low power consumption and wide operating voltage range make it suitable for a range of portable and stationary systems.
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What is PCA9546APWRG4?
- PCA9546APWRG4 is an I2C-bus controlled 4-channel multiplexer.
What is the purpose of PCA9546APWRG4?
- It allows multiple I2C devices to be controlled by a single master device, effectively expanding the number of I2C devices that can be connected to a microcontroller.
How many channels does PCA9546APWRG4 have?
- It has 4 channels, allowing it to switch between up to 4 different I2C buses.
What is the maximum frequency supported by PCA9546APWRG4?
- The maximum frequency supported is 400kHz.
How is PCA9546APWRG4 controlled?
- It is controlled through the I2C bus, allowing a microcontroller or other master device to select which channel is active.
Can PCA9546APWRG4 be used for level shifting?
- Yes, PCA9546APWRG4 can be used for level shifting as it supports voltage translation between the I2C bus and the individual channels.
What are the typical applications of PCA9546APWRG4?
- It is commonly used in applications where multiple I2C devices need to be interfaced with a single microcontroller, such as sensor arrays, display panels, and communication modules.
Does PCA9546APWRG4 require external components?
- It requires minimal external components, typically only needing pull-up resistors for the I2C bus.
What is the supply voltage range for PCA9546APWRG4?
- The supply voltage range is 2.3V to 5.5V, making it compatible with a wide range of microcontrollers and devices.
Is PCA9546APWRG4 suitable for automotive applications?
- Yes, PCA9546APWRG4 is suitable for automotive applications as it can operate within the required temperature range and has ESD protection, making it robust in harsh environments.