PI4IOE5V6416Q/PI4IOE5V6534Q I/O Expanders

PI4IOE5V6416Q/PI4IOE5V6534Q I/O Expanders

Diodes’ automotive-compliant 16/34-bit I²C general-purpose I/O expanders feature built-in level-shifters

Diodes’ PI4IOE5V6416Q and PI4IOE5V6534Q are automotive-compliant, dual-power rail, general-purpose I/O expanders. They provide a simple and flexible solution when additional I/Os are needed, especially when interfacing between different logic levels. These devices provide 16-bits and 34-bits of I/O expansion, respectively. They can operate from 0.9 V/1.8 V to 5 V on the GPIO-port side and 0.8 V/1.65 V to 5.5 V on the I2C bus interface, allowing the devices to interface with next-generation microprocessors and microcontrollers on the SDA/SCL side where supply levels are reducing to conserve power. The PI4IOE5V6416Q is available in TSSOP-24 package, and the PI4IOE5V6534Q is available in W-QFN-46 package with wettable flanks.


  • Low operation power supply voltage from 0.9 V to 5.5 V
    • Supports the latest generation of low power supply microprocessors and microcontrollers
  • Bidirectional voltage-level translation and GPIO expansion
    • Simplified interconnection between a processor running at one voltage level to I/O devices operating at a different (usually higher) voltage level
    • Saves PCB area and level shifter cost in design
  • Intelligent I/O programming features:
    • Latchable inputs
    • Maskable interrupt
    • Programmable output drive strength
    • Programmable open-drain or push-pull outputs
    • Programmable pull-up/pull-down resistors
  • Qualified to AEC-Q100 Grade 2
  • Supports ambient temperature up to +105°C
  • Wettable-flank QFN package for automotive applications
    • Supports automatic optical inspection (AOI) as demanded by many automotive manufacturers

more information: https://www.diodes.com/part/view/PI4IOE5V6416Q

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Mike is the founder and editor of Electronics-Lab.com, an electronics engineering community/news and project sharing platform. He studied Electronics and Physics and enjoys everything that has moving electrons and fun. His interests lying on solar cells, microcontrollers and switchmode power supplies. Feel free to reach him for feedback, random tips or just to say hello :-)

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