PI4IOE5V6416LEX

Product Overview

• Category: Integrated Circuit (IC)
• Use: I/O Expander
• Characteristics:
  • Low-voltage level shifting
  • Bidirectional voltage translation
  • High-speed operation
  • Small package size
• Package: QFN (Quad Flat No-leads)
• Essence: The PI4IOE5V6416LEX is a versatile I/O expander IC that provides low-voltage level shifting and bidirectional voltage translation capabilities.
• Packaging/Quantity: Available in tape and reel packaging, with a quantity of 2500 units per reel.

Specifications

• Supply Voltage: 1.65V to 5.5V
• Number of I/Os: 16
• I/O Voltage Levels: 1.8V, 2.5V, 3.3V, and 5V
• Maximum Frequency: 400 MHz
• Operating Temperature Range: -40°C to +85°C
• Package Dimensions: 3mm x 3mm

Detailed Pin Configuration

The PI4IOE5V6416LEX features a total of 20 pins, which are assigned specific functions as follows:

• VCCA: Power supply for the A-side I/Os
• VCCB: Power supply for the B-side I/Os
• GND: Ground connection
• SDA: Serial data input/output pin
• SCL: Serial clock input pin
• INT: Interrupt output pin
• OE: Output enable pin
• RESET: Reset input pin
• GPIO0-GPIO15: General-purpose I/O pins

Functional Features

• Bidirectional Voltage Translation: Allows seamless communication between devices operating at different voltage levels.
• Level Shifting: Enables interfacing between low-voltage microcontrollers and higher-voltage peripherals.
• High-Speed Operation: Supports data transfer at frequencies up to 400 MHz.
• Interrupt Output: Provides an interrupt signal to the microcontroller when a specific event occurs.
• Output Enable Pin: Allows individual I/Os to be enabled or disabled.
• Reset Functionality: Resets the device to its default state.

Advantages and Disadvantages

Advantages: - Versatile voltage translation capabilities - Small package size for space-constrained applications - High-speed operation for efficient data transfer - Interrupt functionality for event-driven systems

Disadvantages: - Limited number of I/Os (16 in total) - Requires external pull-up resistors for I2C communication

Working Principles

The PI4IOE5V6416LEX operates based on the principles of voltage level shifting and bidirectional voltage translation. It utilizes internal circuitry to convert signals between different voltage levels, allowing seamless communication between devices operating at varying voltages. The IC also incorporates features such as interrupt output and output enable pins to enhance its functionality and flexibility.

Detailed Application Field Plans

The PI4IOE5V6416LEX finds applications in various fields, including but not limited to:

1. Consumer Electronics: Used in smartphones, tablets, and wearable devices for interfacing with peripherals such as touchscreens, sensors, and LED displays.
2. Industrial Automation: Enables communication between low-voltage microcontrollers and higher-voltage industrial equipment, facilitating control and monitoring tasks.
3. Automotive Electronics: Integrates with automotive control systems, enabling voltage translation between different components and subsystems.
4. Internet of Things (IoT): Facilitates connectivity between IoT devices operating at different voltage levels, enhancing interoperability and compatibility.

Detailed and Complete Alternative Models

1. PCA9538: An 8-bit I/O expander with similar voltage translation capabilities but a lower number of I/Os.
2. MCP23017: A 16-bit I/O expander with additional features such as interrupt-on-change and hardware address pins.
3. TCA9539: A 16-bit I/O expander with integrated level shifting and interrupt functionality.

These alternative models offer similar functionality to the PI4IOE5V6416LEX, providing options for different application requirements and design considerations.

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