PCA6416AEVJ

I/o Expanders Overview

The PCA6416AEVJ is a low-voltage translating 16-bit I2C-bus/SMBus I/O expander manufactured by NXP Semiconductors. It provides remote I/O expansion for microcontroller families via the I2C interface, supporting bidirectional voltage-level translation between SDA/SCL lines and Port P. The device operates with two supply voltages: VDD(I2C-bus) ranging from 1.65 V to 5.5 V and VDD(P) ranging from 1.8 V to 5.5 V. It supports Fast-mode I2C bus at 400 kHz and features an open-drain interrupt output and active LOW reset input. The component is housed in a VFBGA24 package (SOT1199-1) and is rated for an ambient temperature range of -40 °C to +85 °C.

I/o Expanders Feature Summary

• Bidirectional voltage-level translation capability between varying I2C bus and port supply voltages
• Open-drain interrupt output activated upon input state changes
• Active LOW hardware reset input for system initialization without depowering
• Hardware selectable slave address configuration via ADDR pin

I/o Expanders Applications

• Battery-powered mobile applications requiring minimal interconnections
• Interfacing sensors, push buttons, and keypads to microcontrollers
• Mixed signal environments requiring communication between incompatible I/O voltages

I/o Expanders Procurement Notes

Verify the ordering part number PCA6416AEVJ corresponds to the VFBGA24 plastic very thin fine-pitch ball grid array package. Confirm the packing method is reel pack, SMD, 13-inch. Ensure the specified temperature rating matches the required operational environment of -40 °C to +85 °C before finalizing procurement.

I/o Expanders Selection Notes

Select this component when expanding GPIOs across different voltage domains using the I2C protocol. Ensure the design accommodates the dual power rail requirements for VDD(I2C-bus) and VDD(P). Verify that the VFBGA24 package dimensions fit the available PCB space and that the soldering profile supports the fine-pitch ball grid array construction.

I/o Expanders Part Context

The PCA6416A series includes variants such as PCA6416AHF in HWQFN24 and PCA6416APW in TSSOP24 packages. These devices share identical electrical characteristics and functional descriptions but differ in physical packaging and mounting styles. The AEV suffix specifically denotes the VFBGA24 package variant within the product family.

I/o Expanders Replacement Considerations

Direct substitutes include PCA6416AHF and PCA6416APW from NXP Semiconductors. Cross-manufacturer alternatives like PCAL6416A or TCAL6416 may require schematic modifications due to differences in register mapping or pin configurations.