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Diodes Incorporated PI4IOE5V6416RQ I/O Expander

Diodes Incorporated PI4IOE5V6416RQ I/O Expander is a 16-bit general-purpose I/O expander that provides remote I/O expansion for most microcontroller families via the I2C-bus interface. This I/O expander offers a simple solution when additional I/Os are needed while keeping interconnections to a minimum. The PI4IOE5V6416RQ I/O expander features bidirectional voltage-level translation that is provided through VDD(I2C_bus), while the VDD(I2C_bus) should be connected to the VDD of the external SCL/SDA lines. This I/O expander has an open-drain interrupt INT output pin that goes LOW when the input state of a GPIO-port changes from the input-state default register value. The PI4IOE5V6416RQ I/O expander also has an interrupt masking feature by which the user can mask the interrupt from an individual GPIO port. This I/O expander supports AEC-Q100 (Grade 2) and is totally Lead-free and RoHS compliant. The I/O expander is ideal for use in sensors, push buttons, keypads, and battery-powered mobile applications for interfacing.

Features

  • Compliant with the I2C-bus fast and standard modes
  • Programmable push-pull/open-drain output stages
  • Programmable output drive strength and pull-up/down resistor
  • Power-on reset all register contents to the default
  • Active LOW open-drain interrupt output
  • Active LOW reset input to reset I2C bus only while register contents remain unchanged
  • Latch-up tested (exceeds 100mA)
  • Supports AEC-Q100 (Grade 2)
  • Lead-free
  • RoHS Compliant
  • Halogen and Antimony free

Specifications

  • 1.65V to 5.5V operating power supply voltage range
  • Allows bidirectional voltage-level translation and GPIO expansion between:
    • 8/2.5/3.3/5V SCL/SDA and 1.8/2.5/3.3/5V port
  • Low standby current consumption:
    • 5μA typical @ 5V VDD
    • 1μA typical @ 3.3V VDD
  • 400kHz I2C-bus interface

Applications

  • Sensors
  • Push buttons
  • Keypads
  • Battery-powered mobile applications for interfacing

Block Diagram

Block Diagram - Diodes Incorporated PI4IOE5V6416RQ I/O Expander

Additional Resource

Published: 2022-12-25 | Updated: 2023-01-25