PCAL6416AEVJ

I/o Expanders Overview

The PCAL6416AEVJ is a 16-bit I2C-bus/SMBus general-purpose I/O expander manufactured by NXP USA Inc. It operates within a supply voltage range of 1.65 V to 5.5 V and supports a maximum clock frequency of 400 kHz. The device features bidirectional voltage-level translation between the interface and Port P, with outputs capable of 25 mA drive current. It utilizes a 24-VFBGA (3x3) package and functions across an operating temperature range of -40°C to +85°C.

I/o Expanders Feature Summary

• Agile I/O capabilities including programmable output drive strength, input latching, and configurable pull-up/pull-down resistors
• Bidirectional voltage-level translation allowing flexible communication between varying logic levels on SCL/SDA and Port P
• Open-drain active LOW interrupt output with maskable functionality and status registers for precise event handling

I/o Expanders Applications

• Battery-powered mobile applications requiring remote I/O expansion
• Interfacing microcontrollers with sensors, push buttons, and keypads
• Mixed-signal environments necessitating level shifting between incompatible I/O voltages

I/o Expanders Procurement Notes

Verify the specific ordering suffix EVJ corresponds to the VFBGA24 package variant when sourcing components. Confirm that the manufacturer designation aligns with NXP USA Inc. specifications. Ensure compatibility with standard surface-mount assembly processes suitable for fine-pitch ball grid array packages during procurement planning.

I/o Expanders Selection Notes

Select this component when system design requires 16-bit GPIO expansion via I2C with integrated level translation. Consider the Agile I/O features for applications needing programmable drive strengths or input latching. Verify that the 24-VFBGA package dimensions fit the available PCB real estate constraints compared to alternative TSSOP or QFN options.

I/o Expanders Part Context

This part belongs to the PCAL6416A series, which serves as a pin-to-pin replacement for the PCA6416A while adding Agile I/O enhancements. The series provides low standby current consumption and robust ESD protection, making it suitable for portable electronics where power efficiency and signal integrity are critical design parameters.

I/o Expanders Replacement Considerations

The PCAL6416A is a direct pin-to-pin drop-in replacement for the PCA6416A. When substituting, ensure software configurations account for the default masking of interrupts at power-up in the PCAL6416A to prevent spurious signals during board initialization.