PCAL9714HNMP

I/o Expanders Overview

The PCAL9714HNMP 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 (VDD(SPI)) and a 1.8 V, 2.5 V, 3.3 V, or 5.5 V Port P side (VDD(P)). The device operates at up to 5 MHz SPI speed with low standby current of 2.0 μA typical at 3.3 V. It includes features such as programmable output drive strength, input latching, pullup/pulldown resistors, maskable interrupts, and switch debounce hardware. Packaged in HVQFN24.

I/o Expanders Feature Summary

• Agile I/O functionality enabling configurable push-pull or open-drain outputs, programmable drive strengths, and selectable pullup/pulldown resistors.
• Bidirectional voltage-level translation allowing direct connection between microcontrollers operating down to 1.1 V and peripherals at higher voltages.
• Interrupt management system with status registers, individual interrupt clearing, edge specification, and hardware switch debounce.

I/o Expanders Applications

• Battery-powered mobile applications requiring sensor and keypad interfacing
• Mixed power supply systems needing communication between incompatible I/O voltages
• Industrial and IoT devices requiring remote I/O expansion

I/o Expanders Procurement Notes

Verify the specific ordering suffix MP indicates the standard tape-and-reel packaging format for automated assembly. Confirm that the component meets the required temperature range specifications for your application environment. Ensure compatibility with the host microcontroller's SPI protocol and voltage levels before finalizing procurement decisions.

I/o Expanders Selection Notes

Select this component when 14 I/O channels are sufficient and voltage translation between dissimilar logic families is required. Consider the Agile I/O features if design flexibility for output drive strength and input latching is necessary. Verify that the HVQFN24 package dimensions fit within the available PCB space constraints.

I/o Expanders Part Context

This part belongs to the PCAL97xx family of high-performance GPIO expanders from NXP Semiconductors. It shares core functionalities with the PCAL9722 but offers a reduced channel count of 14 bits instead of 22. Both utilize the Agile I/O architecture and SPI interface for efficient system integration.

I/o Expanders Replacement Considerations

PCAL9714HN/Q900MP is an automotive-grade alternative within the same family offering extended temperature range compliance. Direct pin-compatible replacements should be verified against specific voltage tolerance and feature requirements.