Diodes Incorporated
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PI4IOE5V9539LE
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PI4IOE5V9539LE

Product Overview

  • Category: Integrated Circuit
  • Use: I/O Expander
  • Characteristics: High-speed, low-voltage, bidirectional voltage-level translation
  • Package: QFN (Quad Flat No-leads)
  • Essence: Interface IC for expanding the number of I/O pins in a microcontroller
  • Packaging/Quantity: Tape and Reel, 2500 units per reel

Specifications

  • Supply Voltage: 1.65V to 5.5V
  • Number of I/O Pins: 16
  • Maximum Frequency: 400 MHz
  • Operating Temperature Range: -40°C to +85°C
  • Input/Output Logic Levels: 1.8V, 2.5V, 3.3V, and 5V

Detailed Pin Configuration

The PI4IOE5V9539LE has a total of 24 pins, which are configured as follows:

  • Pin 1: VDD (Power Supply)
  • Pin 2: SDA (I2C Serial Data)
  • Pin 3: SCL (I2C Serial Clock)
  • Pin 4-7: GPIO0-GPIO3 (General Purpose I/O)
  • Pin 8-15: GPIO4-GPIO11 (General Purpose I/O)
  • Pin 16: INT (Interrupt Output)
  • Pin 17: GND (Ground)
  • Pin 18-21: GPIO12-GPIO15 (General Purpose I/O)
  • Pin 22: OE (Output Enable)
  • Pin 23: RESET (Reset Input)
  • Pin 24: VREF (Reference Voltage)

Functional Features

  • Bidirectional voltage-level translation between different logic levels
  • Supports I2C communication protocol
  • Low power consumption
  • Fast switching speed
  • ESD protection on all pins
  • Internal pull-up resistors for I2C bus

Advantages and Disadvantages

Advantages: - Allows expansion of I/O pins in microcontrollers with limited pin count - Supports multiple logic voltage levels, increasing compatibility - Provides bidirectional voltage-level translation, simplifying interfacing between different devices - Low power consumption enhances energy efficiency - Fast switching speed enables high-speed data transfer

Disadvantages: - Limited number of I/O pins (16 in total) - Requires additional components for proper operation (e.g., pull-up resistors for I2C bus)

Working Principles

The PI4IOE5V9539LE is an I/O expander that utilizes the I2C communication protocol to interface with a microcontroller. It acts as a bridge between the microcontroller and external devices by expanding the available I/O pins. The device translates the logic voltage levels between the microcontroller and connected devices, allowing seamless communication.

Detailed Application Field Plans

The PI4IOE5V9539LE finds applications in various fields, including:

  1. Consumer Electronics: Used in smart home devices, remote controls, and wearable devices to expand the number of available I/O pins.
  2. Industrial Automation: Enables connectivity between microcontrollers and sensors/actuators in industrial control systems.
  3. Automotive: Facilitates communication between microcontrollers and peripheral devices in automotive applications, such as infotainment systems and dashboard controls.
  4. Internet of Things (IoT): Integrates with IoT devices to provide additional I/O capabilities for sensor data acquisition and actuator control.

Detailed and Complete Alternative Models

  1. PCA9538: 8-bit I/O expander with I2C interface, suitable for low-pin-count applications.
  2. MCP23017: 16-bit I/O expander with I2C/SPI interface, offers more I/O pins and additional features like interrupt support.
  3. MAX7313: 16-bit I/O expander with I2C interface, provides higher current drive capability for driving LEDs and other high-power devices.

These alternative models offer similar functionality to the PI4IOE5V9539LE and can be considered based on specific project requirements.

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Seznam 10 běžných otázek a odpovědí souvisejících s aplikací PI4IOE5V9539LE v technických řešeních

Sure! Here are 10 common questions and answers related to the application of PI4IOE5V9539LE in technical solutions:

  1. Q: What is PI4IOE5V9539LE? A: PI4IOE5V9539LE is a low-voltage 16-bit I/O expander with an interrupt output and an I2C interface.

  2. Q: What is the purpose of using PI4IOE5V9539LE in technical solutions? A: PI4IOE5V9539LE allows for expanding the number of available I/O pins on a microcontroller or other devices, enabling more flexibility in system design.

  3. Q: How does PI4IOE5V9539LE communicate with the microcontroller or host device? A: PI4IOE5V9539LE communicates with the microcontroller or host device through the I2C bus protocol.

  4. Q: What is the maximum voltage level that PI4IOE5V9539LE can handle? A: PI4IOE5V9539LE can handle a maximum voltage level of 5.5V.

  5. Q: Can PI4IOE5V9539LE be used with both 3.3V and 5V microcontrollers? A: Yes, PI4IOE5V9539LE is compatible with both 3.3V and 5V microcontrollers as it supports both voltage levels.

  6. Q: How many I/O pins does PI4IOE5V9539LE provide? A: PI4IOE5V9539LE provides 16 I/O pins that can be configured as inputs or outputs.

  7. Q: Does PI4IOE5V9539LE support interrupt functionality? A: Yes, PI4IOE5V9539LE has an interrupt output pin that can be used to notify the microcontroller of any input changes.

  8. Q: Can PI4IOE5V9539LE be cascaded with other I/O expanders? A: Yes, multiple PI4IOE5V9539LE devices can be cascaded together to further expand the number of available I/O pins.

  9. Q: What is the typical operating frequency of PI4IOE5V9539LE? A: The typical operating frequency of PI4IOE5V9539LE is 400 kHz for the I2C communication.

  10. Q: Are there any evaluation boards or development kits available for PI4IOE5V9539LE? A: Yes, Texas Instruments provides evaluation boards and development kits for PI4IOE5V9539LE, which can help in prototyping and testing applications.

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