PI4IOE5V6524ZHEX

I/o Expanders Overview

The PI4IOE5V6524ZHEX is a low-voltage translating 24-bit I/O expander manufactured by Diodes Incorporated. It operates with an I2C-bus supply voltage (VDD(I2C-bus)) ranging from 0.8 V to 3.6 V and a GPIO port supply voltage (VDD(P)) from 1.65 V to 5.5 V. The device supports SCL clock frequencies up to 1 MHz and functions within an ambient temperature range of -40°C to +85°C. It features an interrupt output, configurable drive strength, switch debounce circuitry, and input latch registers. The component is housed in a W-QFN5050-32 package.

I/o Expanders Feature Summary

• Provides hardware-level voltage translation between the I2C bus domain and the GPIO port domain.
• Includes dedicated interrupt output pin for asynchronous status signaling.
• Supports individual pin configuration for output type and internal pull-up/pull-down selection.

I/o Expanders Applications

• Systems requiring expansion of digital I/O lines across different voltage domains.
• Interfaces utilizing I2C communication protocols with varying logic levels.
• Applications necessitating hardware-based switch debouncing.

I/o Expanders Procurement Notes

Verify that the specific ZHEX suffix corresponds to the required tape-and-reel packaging quantity and ensure compatibility with the target PCB footprint. Confirm RoHS compliance requirements against project specifications before finalizing orders.

I/o Expanders Selection Notes

Select this component when 24 bidirectional I/O lines are required alongside I2C interface capabilities. Ensure the design accommodates separate power supplies for the I2C bus and the peripheral ports to utilize the voltage translation feature effectively.

I/o Expanders Part Context

This part belongs to the PI4IOE5V6 series of I/O expanders produced by Diodes Incorporated. It is specifically designed for applications needing extensive I/O expansion with flexible voltage level shifting capabilities over standard serial interfaces.

I/o Expanders Replacement Considerations

Consult official manufacturer documentation for confirmed substitute part numbers. Verify pinout and register compatibility before implementing any alternative components.

I/o Expanders FAQ

How does the device handle voltage differences between the I2C bus and the GPIO ports?

The PI4IOE5V6524 provides hardware-level voltage translation, allowing the I2C bus to operate at one voltage level while the GPIO ports operate at a different level.

What is the function of the RESET pin?

The active LOW reset input initializes the device registers and sets all I/Os to inputs upon assertion.

Can the interrupt output be configured for different trigger types?

Yes, the interrupt edge registers allow configuration for level-triggered or various edge-triggered interrupts.