SiWG917 Typical Current Consumption#
This section lists the typical current consumption of SiWG917 observed at room temperature, with a supply voltage of 3.3 V, M4 and NWP configured in 320-352 KB SRAM configurations respectively.
The following table provides an overview of possible power state combinations and their power numbers:
| NWP Associated Power Save (With Retention) (DTIM-10) | NWP Deep Sleep with Retention | NWP Deep Sleep without Retention | |||
|---|---|---|---|---|---|
| Sleep Current | Average Current | ||||
| Active/Standby Mode | PS4 | 12.71 mA | 12.78 mA | 12.71 mA | 12.703 mA |
| PS3 | 7.61 mA | 7.68 mA | 7.61 mA | 7.603 mA | |
| PS2 | NA | NA | 818 µA | 810.5 µA | |
| PS1 | NA | NA | 319 µA | NA | |
| Sleep Mode | PS4/3 Sleep | 23.7 µA | 68.7 µA | 23.7 µA | NA |
| PS2 Sleep | NA | NA | 23.7 µA | NA | |
| Deepsleep Mode | PS0 | NA | NA | NA | 3.99 µA |
The current consumption numbers in the above table are obtained by combining respective M4 and NWP current numbers from the data sheet. Apart from these, M4 current varies with the SRAM retained, as configured in the M4 application.
M4 Power States Active and Sleep Currents (Excluding NWP)#
The following current consumption numbers are obtained by configuring NWP in shutdown mode, that consumes minimal current consumption.
Note: The NWP shutdown mode here is used only to simulate the M4 sub-system current consumption numbers. NWP shutdown mode cannot be used in real time applications.
| Power Mode | Power State | Current Consumption | Units |
|---|---|---|---|
| Active/Standby | PS4 | 13.7 | mA |
| PS3 | 7.6 | mA | |
| PS2 | 808 | µA | |
| PS1 | 309 | µA | |
| Sleep | Sleep with 320 KB RAM | 13.7 | µA |
| Sleep with 192 KB RAM | 9.8 | µA | |
| Sleep with 128 KB RAM | 8 | µA | |
| Sleep with 64 KB RAM | 5.5 | µA | |
| Deepsleep | PS0 | 1.44 | µA |
NWP Power States Current Consumption#
The table below shows the difference between NWP current consumption with different SRAM configurations.
| Configuration | NWP Retention (Sleep Current) | ||
|---|---|---|---|
| 352 KB | 416 KB | 480 KB | |
| NWP in Associated/Standby Power Save with retention M4 in PS4 Sleep with 192 KB RAM retention | 19.8 µA | 21.2 µA | 23.7 µA |