topic Re: Current sink capability of QN9090's GPIO input in Wireless MCU

Current sink capability of QN9090's GPIO input

ilsoojung — Wed, 12 May 2021 07:48:54 GMT

Dear NXP,

one of our customer designed with QN9090 BLE MCU.

and they want to exact current sink value of QN9090's GPIO in case of input mode.

I thoroughly checked QN9090 datasheet/RM, but there is no explanation regarding this.

thanks,

ilsoo

Re: Current sink capability of QN9090's GPIO input

Ricardo_Zamora — Wed, 12 May 2021 21:40:47 GMT

Hi @ilsoojung,

Hope you are doing well. The GPIO pins have the IO characteristics listed on Table 17 of the Datasheet (QN9090(T)/QN9030(T) DS), there you can find specified the input leakage current (Typ 4.5 nA).

Hope this helps.

Regards,

Ricardo