PCA9544ARGYR

I2C Multiplexer 1-Element 4-IN 20-Pin VQFN EP T/R
3,686 有效庫存

PCA9544ARGYR

有效庫存3,686

I2C Multiplexer 1-Element 4-IN 20-Pin VQFN EP T/R

  • 製造商零件號 # : PCA9544ARGYR

  • 包裝/封裝: VQFN-20

  • 製造商: Texas Instruments

  • 產品分類 : Specialized

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PCA9544ARGYR 數據表
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詳細說明

Featuring four interrupt inputs for individual downstream channels and an output that combines all interrupts, the PCA9544A enhances system monitoring capabilities. This allows for efficient management of multiple connected devices, ensuring timely responses to critical events. Moreover, the multiplexer's 5V tolerant I/O pins provide added flexibility, enabling seamless integration with both 5V and lower voltage components without the need for extra protection circuitry

主要特徵

  • Orient towards efficient solutions
  • Pursue streamlined system architectures
  • Foster innovative product development

規格

以下是所選零件的基本參數，涉及零件的特性及其所屬類別。

Addresses 8 Supply voltage (max) (V) 5.5
Supply voltage (min) (V) 2.3 Features Interrupt pin
Rating Catalog Frequency (max) (MHz) 0.4
Operating temperature range (°C) -40 to 85 Number of channels 4

常見問題解答

What is PCA9544ARGYR?

The PCA9544ARGYR is a low-voltage 4-channel I2C-bus multiplexer designed by NXP Semiconductors. It is ideal for applications requiring multiple I2C devices to communicate with a single I2C bus, such as networking equipment, industrial control systems, and consumer electronics.

How Does PCA9544ARGYR Work?

The PCA9544ARGYR works by enabling the communication between multiple I2C devices and a single I2C bus. It allows the selection of one of the four channels to be connected to the bus at a time, enabling sequential communication with different I2C devices. The multiplexer is controlled through the I2C bus interface, offering flexibility in system design.

How Many Pins does PCA9544ARGYR have and What are the Functions of the Pinout Configuration?

The PCA9544ARGYR is housed in a 16-pin QFN (Quad Flat No-Lead) package. The pinout configuration includes:

  • VCC: Power supply pin.
  • GND: Ground pin.
  • SCL, SDA: Serial clock and data input/output pins for I2C communication.
  • A0, A1, A2: Address select pins for I2C address configuration.
  • ENABLE: Channel enable input pin.
  • Y0-Y3: I2C-bus channels for connecting to multiple devices.

What are the Pros and Cons of PCA9544ARGYR?

Pros:

  • Multi-Channel Multiplexing: Allows communication with multiple devices through a single I2C bus.
  • Low Voltage Operation: Operates at low voltage levels compatible with modern electronics.
  • I2C Interface: Supports standard I2C communication protocol for easy integration with microcontrollers and other devices.
  • Address Select Pins: Provides flexibility in I2C address configuration for multiple multiplexer applications.

Cons:

  • Complexity: Requires careful consideration of addressing and channel selection for proper operation.
  • External Pull-Up Resistors: May require external pull-up resistors for reliable I2C bus operation.
  • Additional Overhead: Increases complexity in I2C communication compared to direct device connection.

Are There Any Equivalents/Alternatives to PCA9544ARGYR for Recommendation?

  • The TCA9544A from Texas Instruments is a similar 4-channel I2C-bus multiplexer.
  • Alternatives to the PCA9544ARGYR include the MAX7360 from Maxim Integrated and the LTC4301 from Analog Devices.

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