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TCA6424: 器件中断int输出异常

Part Number: TCA6424


之前是使用TCA6424A作为按键IO输入检测,采用中断触发来识别输入事件。但是由于物料采购周期问题,准备使用TCA6424替代,软件程序和硬件电路没任何改变,但是发现TCA6424中断输出异常,有时TCA6424完全不能输出中断。对比器件datasheet,发现TCA6424的中断有会出现问题,所以,想请问一下,能否通过软件或其他手段避免此问题出现?谢谢!