NXP Semiconductors PCAL9722HN-ARD I/O Expander Evaluation Board

NXP Semiconductors PCAL9722HN-ARD I/O Expander Evaluation Board is designed to help evaluate the PCAL9722, an ultra-low-voltage translating 22-bit SPI I/O expander. The PCAL9722HN-ARD evaluation board features a 22-bit general-purpose I/O expander that provides remote I/O expansion for most microcontroller families via the SPI interface. The board can be connected with other SPI-bus demo boards to create an evaluation system. The IC communicates with the host via the industry-standard SPI-bus port. The evaluation software for the NXP Semiconductors PCAL9722HN-ARD runs under the Microsoft Windows 7, 8, and 10 PC platforms.

Features

  • Agile I/O
  • USB interface to the host PC
  • Ultra-low-voltage translating 22-bit SPI I/O expander
  • Convenient test points for easy scope measurements and signal access
  • Easy to use GUI based software demonstrates the capabilities of the PCAL9722HN
  • Onboard LEDs, seven-segment display, and key switches for PCAL9722HN general purpose I/O evaluation

Kit Contents

  • Assembled and tested the evaluation board in an antistatic bag
  • Quick Start Guide

Applications

  • Keypad
  • Battery-powered mobile

Board Layout

Mechanical Drawing - NXP Semiconductors PCAL9722HN-ARD I/O Expander Evaluation Board
Published: 2024-08-29 | Updated: 2025-06-23