PI4IOE5V6416ZDEX

I/o Expanders Overview

The PI4IOE5V6416ZDEX is a low-voltage translating 16-bit I2C-bus I/O expander manufactured by Diodes Incorporated. It operates within a supply voltage range of 1.65 V to 5.5 V for both the I2C bus and GPIO ports, supporting standard mode (up to 100 kHz) and fast mode (up to 400 kHz) clock frequencies. The device features an open-drain interrupt output and includes internal pull-up/pull-down resistors with selectable resistance values between 50 kΩ and 150 kΩ. It provides ESD protection rated at 2 kV under human body model conditions and functions reliably across an operating temperature range of -40°C to +85°C.

I/o Expanders Feature Summary

• Supports bidirectional voltage translation between the I2C bus domain and the GPIO port domain within the specified supply voltage limits.
• Provides configurable input/output functionality with individual polarity inversion and interrupt masking capabilities for each pin.
• Includes programmable output drive strength registers allowing adjustment of high-level and low-level output currents.

I/o Expanders Applications

• Embedded systems requiring expansion of general-purpose I/O pins via serial interfaces.
• Portable devices utilizing low-voltage power supplies where voltage level shifting is necessary.
• Industrial control modules interfacing microcontrollers with peripheral sensors and actuators.

I/o Expanders Procurement Notes

Verify that the ordering suffix matches the required packaging configuration, as the 'X' suffix indicates tape and reel delivery. Confirm compliance with RoHS directives and lead-free specifications if environmental regulations apply to the assembly process. Ensure the selected variant aligns with the specific thermal and electrical requirements of the target application environment.

I/o Expanders Selection Notes

Select this component when a 16-bit I/O expansion solution with integrated voltage translation is required. Consider the available register set for input latching, output configuration, and interrupt management. Evaluate the package options against PCB space constraints, noting that the ZD suffix corresponds to the TQFN-24 form factor suitable for surface-mount assembly.

I/o Expanders Part Context

This part belongs to the PI4IOE5V6 series of I/O expanders designed for I2C communication. It shares functional similarities with other members of the family but is distinguished by its specific pinout, register map, and packaging characteristics. The ZD suffix specifically denotes the TQFN-24 package type offered by the manufacturer.

I/o Expanders Replacement Considerations

Consult official substitution guides for compatible alternatives within the same product family. Verify pin compatibility and register mapping before replacing existing components in established designs to ensure functional equivalence without hardware modifications.