PCAL9714HN/Q900MP

I/o Expanders Overview

The PCAL9714HN/Q900MP is a 14-bit general-purpose I/O expander featuring an SPI interface and Agile I/O capabilities. It supports bidirectional voltage-level translation between a 1.1 V to 5.5 V SPI bus side and a 1.8 V, 2.5 V, 3.3 V, or 5.5 V Port P side. The device operates at up to 5 MHz SPI speed with two supply voltages: VDD(SPI) for the interface and VDD(P) for core circuits. It includes features such as programmable output drive strength, latchable inputs, switch debounce hardware, and interrupt masking. The component is housed in an HVQFN24 package and complies with AEC-Q100 Grade 1 standards.

I/o Expanders Feature Summary

• Agile I/O functionality enabling bit-wise programming of output drive strength, input latching, and pullup/pulldown resistors
• Bidirectional voltage-level translation allowing direct connection between low-voltage microcontrollers and higher-voltage peripherals
• Integrated switch debounce hardware and individual interrupt clear without disturbing other events
• AEC-Q100 Grade 1 compliance for automotive applications

I/o Expanders Applications

• Automotive advanced driver assistance systems (ADAS)
• IoT smart home devices and appliances
• Industrial HVAC and building security systems

I/o Expanders Procurement Notes

Verify that the ordering suffix Q900 corresponds to the extended industrial temperature range of -40 °C to +125 °C. Confirm AEC-Q100 Grade 1 qualification status if automotive PPAP documentation is required. Ensure the HVQFN24 package dimensions match the PCB footprint requirements.

I/o Expanders Selection Notes

Select this model when 14 GPIO channels are sufficient and SPI connectivity is preferred over I2C. The wide voltage translation range accommodates mixed-supply environments. Consider the Agile I/O features for reducing external discrete components like pull-up resistors or debounce circuits.

I/o Expanders Part Context

This part belongs to the PCAL97xx family of high-performance GPIO expanders from NXP Semiconductors. It shares the Agile I/O architecture with the 22-bit PCAL9722 variant but offers fewer pins in a smaller HVQFN24 package compared to larger expanders.

I/o Expanders Replacement Considerations

PCAL9714HN is the commercial grade equivalent with a -40 °C to +85 °C operating range. PCAL9722HN/Q900MP provides 22 bits instead of 14.