As the system is being constantly tuned by the Power management unit (PMU), estimating the current consumption of an application can be challenging if the designer is not able to perform measurements directly on the hardware. To facilitate the estimation process, a set of current consumption scenarios are provided to show the typical current drawn from the VDD supply.
Each scenario specifies a set of operations and conditions applying to the given scenario. Current consumption scenarios, common conditions shows a set of common conditions used in all scenarios, unless otherwise stated in the description of a given scenario. All scenarios are listed in Electrical specification.
| Condition | Value |
|---|---|
| VDD | 3 V |
| Temperature | 25°C |
| CPU | WFI (wait for interrupt)/WFE (wait for event) sleep |
| Peripherals | All idle |
| Clock | Not running |
| Regulator | LDO |
| RAM | Full 24 kB retention |
| Compiler1 | GCC v4.9.3 20150529 (arm-none-eabi-gcc). Compiler flags: -O0 -falign-functions=16 -fno-strict-aliasing -mcpu=cortex-m4 -mfloat-abi=soft -msoft-float -mthumb. |
| 32 MHz crystal2 | SMD 2520, 32 MHz, 10 pF +/- 10 ppm |