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TCA9509: 每个GPIO读写变化时间?

Part Number: TCA9509
Other Parts Discussed in Thread: TCA9539

您好!

我有如下疑惑,请帮忙解疑答惑:

1、当TCA9539芯片上的GPIO都作为电源芯片EN的控制脚,有时序要求时候,比如P00~P07 、P10~P17每个管脚上电时序精度是多少?

2、当TCA9539芯片上的GPIO都作为PWM输出,且要求P00~P07 、P10~P17每个管脚有时序要求,此芯片是否能实现?