PI4IOE5V6416AQ2LEX

I/o Expanders Overview

The PI4IOE5V6416AQ is a low-voltage translating 16-bit I2C-bus I/O expander designed for automotive applications. It operates with supply voltages ranging from 1.65 V to 5.5 V on both the I2C bus and GPIO ports. The device supports standard mode (up to 100 kHz) and fast mode (up to 400 kHz) clock frequencies. It features an active LOW reset input, interrupt output capability, and configurable internal pull-up/pull-down resistances of 50 kΩ to 150 kΩ. ESD protection is rated at 2 kV HBM. The component is housed in a 24-pin TSSOP package.

I/o Expanders Feature Summary

• Provides voltage-level translation between the I2C bus domain and the GPIO port domain.
• Includes an active LOW reset input and open-drain interrupt output for event-driven communication.
• Supports configurable polarity inversion and individual output drive strength settings.

I/o Expanders Applications

• Automotive infotainment systems requiring extended GPIO resources.
• Body control modules interfacing sensors and actuators across different voltage domains.
• ADAS sensor interfaces needing reliable I/O expansion under strict temperature conditions.

I/o Expanders Procurement Notes

Verify that the ordering suffix matches the required specifications: 'Q' indicates automotive compliance, '2' denotes AEC-Q100 Grade 2 qualification, 'E' signifies lead-free and green packaging, and 'X' confirms tape and reel delivery format. Confirm the manufacturer is Diodes Incorporated and the document number is DS43598 Rev 2-2 to ensure authenticity.

I/o Expanders Selection Notes

Select this component when automotive-grade reliability and wide operating temperature ranges are required. Ensure the system design accommodates the 24-pin TSSOP footprint and provides appropriate pull-up resistors for the SCL, SDA, INT, and RESET lines. Verify that the I2C master supports the necessary clock speeds and address configurations.

I/o Expanders Part Context

This part belongs to the PI4IOE5V6416 family of I/O expanders. The 'AQ' designation specifically identifies it as the automotive-compliant variant manufactured by Diodes Incorporated. It shares functional similarities with other members of the series but is distinguished by its specific qualification standards and environmental ratings.

I/o Expanders Replacement Considerations

PI4IOE5V6416ALEX

I/o Expanders FAQ

What is the function of the ADDR pin?

The ADDR pin serves as an address input that allows connection directly to VDD(P) or ground to select one of the available I2C slave addresses.

How does the device handle power-on reset?

The device utilizes a power-on reset mechanism where all I/Os are set to inputs upon reset. The reset time is specified based on the drop of VDD(P) to the power-on reset voltage threshold.

What is the purpose of the Output Drive Strength registers?

These registers allow configuration of the output drive strength for each port, enabling adjustment of current sourcing and sinking capabilities to match load requirements.