current consumption differ than spec

RE: current consumption differ than spec

Stian Røed Hafskjold — Wed, 06 Jun 2018 13:45:18 GMT

" 24.6.1 Timers Electrical Specification" points to the TIMER peripheral. When using this peripheral you can expect about 400uA current consumption because of HF clock.

The RTC peripheral consumes only about 1 uA.

RE: current consumption differ than spec

Haim Gaddasi — Wed, 06 Jun 2018 11:56:20 GMT

Thanks. I'm using the RTC module and reaching about 30uA.

What doesn't make sense is the data sheets, in section " 24.6.1 Timers Electrical Specification" the maximum current is 120 µA and i can't get this figure.

Thanks, Haim.

RE: current consumption differ than spec

Stian Røed Hafskjold — Wed, 06 Jun 2018 11:40:32 GMT

The timer uses the HF clock. The current consumption of the HF clock depends on if you are using HFINT or HFXO and DCDC or not, but 400uA is in the ballpark. If you need a low power consuming timer you need to use the RTC which runs on the LF clock.