Current consumption
Because the power and clock management system is constantly adjusting power and clock sources, it is difficult to estimate an application's current consumption. To facilitate the estimation process, a set of current consumption scenarios is provided to show the typical current drawn from the supply pins.
Each scenario specifies a set of operations and conditions applying to the given scenario. All scenarios are listed in the following sections.
CURRENT Electrical specification
Sleep
| Symbol | Description | Min. | Typ. | Max. | Units |
|---|---|---|---|---|---|
| IHIB0 | System Hibernation, Wake on nRESET pin | Estimated 30 | nA | ||
| IOFF0 | System OFF, Wake on pin, 0 KB RAM retained | Estimated 0.5 | μA | ||
| IOFF1 | System OFF, Wake on pin + GRTC, LFXO, 0 KB RAM retained | Estimated 0.6 | μA | ||
| IONIDLE | System ON, Wake on pin + GRTC, LFXO, 192 KB RAM retained | Estimated 1.6 | μA |
CPU running
The CPU running parameters are obtained using the following compiler version:
Compiler: Arm version 6.16 (armclang)
--target=arm-arm-none-eabi -c -g -masm=auto -Wno-unused-value -mcpu=cortex-m33 -mfloat-abi=hard -mfpu=fpv5-sp-d16 -flto -Omax--lto --remove| Symbol | Description | Min. | Typ. | Max. | Units |
|---|---|---|---|---|---|
| IAPPCPU0 | CPU running Coremark at 128 MHz from NVM, Cache enabled | Estimated 2.1 | mA |
RADIO transmitting/receiving
| Symbol | Description | Min. | Typ. | Max. | Units |
|---|---|---|---|---|---|
| IRADIO_RX0 | Radio RX, 1 Mbps, HFXO | Estimated 4.0 | mA | ||
| IRADIO_TX0 | Radio TX, 0 dBm, HFXO | Estimated 5.8 | mA | ||
| IRADIO_TX1 | Radio TX, 4 dBm, HFXO | Estimated 7.6 | mA |