Diodes Incorporated
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PI4IOE5V9554LEX
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PI4IOE5V9554LEX

Basic Information Overview

  • Category: Integrated Circuit (IC)
  • Use: I/O Expander
  • Characteristics:
    • Low-voltage level shifting
    • Bidirectional voltage translation
    • High-speed operation
    • Wide operating voltage range
  • Package: 24-pin QFN package
  • Essence: I/O expander with level shifting capabilities
  • Packaging/Quantity: Available in reels of 2500 units

Specifications

  • Operating Voltage Range: 1.65V to 5.5V
  • Number of I/Os: 8
  • I/O Voltage Levels: 1.2V to 5.5V
  • Maximum Frequency: 400 MHz
  • Supply Current: 1.6 mA (typical)

Detailed Pin Configuration

  1. VCCA - Power supply for the A-side I/Os
  2. GND - Ground
  3. SDA - Serial data input/output
  4. SCL - Serial clock input
  5. OE - Output enable
  6. VCCB - Power supply for the B-side I/Os
  7. GPIO0 - General-purpose I/O pin
  8. GPIO1 - General-purpose I/O pin
  9. GPIO2 - General-purpose I/O pin
  10. GPIO3 - General-purpose I/O pin
  11. GPIO4 - General-purpose I/O pin
  12. GPIO5 - General-purpose I/O pin
  13. GPIO6 - General-purpose I/O pin
  14. GPIO7 - General-purpose I/O pin
  15. INT - Interrupt output
  16. ADDR0 - Address selection bit 0
  17. ADDR1 - Address selection bit 1
  18. RESET - Reset input
  19. VREF - Reference voltage output
  20. AGND - Analog ground
  21. AVDD - Analog power supply
  22. NC - No connection
  23. NC - No connection
  24. NC - No connection

Functional Features

  • Bidirectional voltage translation between different I/O voltage levels
  • Level shifting capability allows interfacing between devices with different voltage requirements
  • High-speed operation enables efficient data transfer
  • Low-voltage level shifting reduces power consumption and improves efficiency
  • Interrupt output for event-driven applications

Advantages

  • Wide operating voltage range allows compatibility with various systems
  • Small form factor and package size make it suitable for space-constrained designs
  • Low power consumption extends battery life in portable devices
  • High-speed operation enhances overall system performance
  • Bidirectional voltage translation simplifies interfacing between different voltage domains

Disadvantages

  • Limited number of I/Os may not be sufficient for complex applications
  • Lack of built-in protection features against overvoltage or ESD events
  • Requires external pull-up resistors for proper operation

Working Principles

The PI4IOE5V9554LEX is an I/O expander IC that facilitates bidirectional voltage translation between different I/O voltage levels. It operates by receiving serial data through the SDA pin and clock signals through the SCL pin. The device can be controlled using standard I2C communication protocols.

The I/O expander translates the voltage levels of the A-side I/Os to match the voltage levels of the B-side I/Os, allowing seamless communication between devices with different voltage requirements. The OE pin enables or disables the outputs, while the INT pin provides interrupt functionality for event-driven applications.

Detailed Application Field Plans

The PI4IOE5V9554LEX finds applications in various fields, including: 1. Consumer Electronics: Enables voltage level translation between different components in smartphones, tablets, and wearable devices. 2. Industrial Automation: Facilitates communication between devices operating at different voltage levels in industrial control systems. 3. Automotive: Allows interfacing between different voltage domains in automotive electronics, such as infotainment systems and dashboard controls. 4. Internet of Things (IoT): Enables connectivity between IoT devices with varying voltage requirements, enhancing interoperability.

Detailed and Complete Alternative Models

  1. PCA9538: 8-bit I/O expander with I2C interface and interrupt functionality.
  2. MCP23017: 16-bit I/O expander with I2C interface and interrupt capability.
  3. MAX7313: 16-bit I/O expander with serial interface and configurable I/O voltage levels.

(Note: The above alternative models are provided for reference purposes and may have different specifications and features compared to the PI4IOE5V9554LEX.)

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Liste 10 almindelige spørgsmål og svar relateret til anvendelsen af PI4IOE5V9554LEX i tekniske løsninger

Sure! Here are 10 common questions and answers related to the application of PI4IOE5V9554LEX in technical solutions:

  1. Q: What is PI4IOE5V9554LEX? A: PI4IOE5V9554LEX is a versatile I/O expander that provides additional GPIO (General Purpose Input/Output) pins for microcontrollers or other digital devices.

  2. Q: How many GPIO pins does PI4IOE5V9554LEX offer? A: PI4IOE5V9554LEX offers 8 GPIO pins, which can be configured as inputs or outputs based on the application requirements.

  3. Q: Can PI4IOE5V9554LEX operate at different voltage levels? A: Yes, PI4IOE5V9554LEX supports both 3.3V and 5V logic levels, making it compatible with a wide range of microcontrollers and digital devices.

  4. Q: How can I communicate with PI4IOE5V9554LEX? A: PI4IOE5V9554LEX uses the I2C communication protocol, allowing you to control and read the status of the GPIO pins using only two wires.

  5. Q: Can I use multiple PI4IOE5V9554LEX devices in my project? A: Yes, you can connect multiple PI4IOE5V9554LEX devices on the same I2C bus by assigning unique addresses to each device.

  6. Q: What is the maximum current that PI4IOE5V9554LEX can source/sink per GPIO pin? A: Each GPIO pin of PI4IOE5V9554LEX can source/sink up to 25mA of current, which is sufficient for most low-power applications.

  7. Q: Can PI4IOE5V9554LEX handle interrupts? A: Yes, PI4IOE5V9554LEX supports interrupt functionality, allowing it to generate an interrupt signal to the microcontroller when a specific event occurs on any of its GPIO pins.

  8. Q: Is PI4IOE5V9554LEX compatible with both push-pull and open-drain configurations? A: Yes, PI4IOE5V9554LEX can be configured as either push-pull or open-drain outputs, providing flexibility in driving different types of loads.

  9. Q: Does PI4IOE5V9554LEX have built-in ESD protection? A: Yes, PI4IOE5V9554LEX incorporates ESD (Electrostatic Discharge) protection on its I/O pins, safeguarding against potential damage from static electricity.

  10. Q: Are there any application examples for PI4IOE5V9554LEX? A: Yes, PI4IOE5V9554LEX is commonly used in various applications such as industrial automation, home automation, IoT devices, robotics, and automotive electronics, where additional GPIO pins are required.

Please note that these answers are general and may vary depending on the specific implementation and requirements of your project.