PCAL6416AER

I/o Expanders Overview

The PCAL6416AER is a 16-bit I2C-bus/SMBus level translating I/O expander with interrupt, reset and Agile I/O in UFBGA24 package. It operates from 1.65 V to 5.5 V supply voltage. The device supports 400 kHz clock frequency. It features open-drain and push-pull outputs with 10 mA or 25 mA drive capability. ESD protection exceeds 2 kV Human-Body Model. Operating temperature range is -40°C to +85°C.

I/o Expanders Feature Summary

• Bidirectional voltage-level translation between I2C bus and GPIO ports
• Agile I/O functionality for flexible port configuration
• Active LOW reset input and interrupt output support

I/o Expanders Applications

• Building automation systems
• Industrial IoT controllers
• Embedded microcontroller expansion

I/o Expanders Procurement Notes

Verify the specific suffix ER against official NXP documentation to confirm the UFBGA24 package type and tape-and-reel orientation. Check RoHS compliance status and REACH registration details directly from the manufacturer datasheet before procurement. Confirm availability as this variant may be subject to end-of-life notices.

I/o Expanders Selection Notes

Select this component when bidirectional level shifting between different voltage domains is required alongside GPIO expansion. Ensure the UFBGA24 package fits the PCB layout constraints. Verify that the 400 kHz I2C speed meets system timing requirements. Consider the Agile I/O feature if dynamic reconfiguration of input/output directions is necessary during operation.

I/o Expanders Part Context

This part belongs to the PCAL6416A series, which serves as a pin-to-pin replacement for the PCA6416A with added Agile I/O capabilities. It is designed for mixed-signal environments requiring seamless communication between low-voltage processors and higher voltage peripherals.

I/o Expanders Replacement Considerations

PCAL6416APW (TSSOP24) and PCAL6416AEX1Z (X2QFN24) are alternative packages within the same functional family. Verify pin compatibility and thermal performance differences before substitution.