10.1.9.3 Power Consumption in ULP0, ULP1 and Idle Modes
- Figure 10-46, Figure 10-47, Table 10-66 and Table 10-67 report the SAM9X7 Series average power consumption in Idle, ULP0 and ULP1 modes versus temperature measured on a few typical devices. They do not provide maximum power consumption specifications.
- All power supply inputs are powered within their operating range and in particular VDDCORE = 1.15V.
- There is no consumption on the device I/Os. To reach the best possible power consumption figures, it is of prime importance to set each I/O of the device to an appropriate state (Pull-Up/Pull-Down, etc.) with respect to the external components connected to these I/Os.
- USB transceivers are disabled.
- All peripheral clocks are disabled.
- Current measurement as per the following figures
Low Power Mode\ TA (°C) | IDDIN33/IDDCORE (mA/mA) | Wake-up Time (µs) | |||||
---|---|---|---|---|---|---|---|
-40°C | 25°C | 50°C | 70°C | 85°C | 105°C | ||
Idle (MCK @ 266 MHz) | 0.20/33 | 0.25/39 | 0.26/45 | 0.27/52 | 0.27/61 | 0.28/75 | 10x tCPU_CLK |
ULP1 | 0.20/1.5 | 0.25/4.5 | 0.26/8.5 | 0.27/15 | 0.27/22 | 0.28/32 | 15 |
ULP1 @ 1.0V | 0.20/1.0 | 0.25/3.0 | 0.26/6.0 | 0.27/10 | 0.27/14.5 | 0.28/23 | |
ULP0 @ 32 kHz | 0.20/1.2 | 0.25/6.7 | 0.26/11.9 | 0.27/18.2 | 0.27/24.5 | 0.28/35.2 | 5625 |
ULP0 @ 187.5kHz | 0.30/1.3 | 0.34/6.75 | 0.35/12.0 | 0.36/18.3 | 0.36/24.5 | 0.37/35.20 | 960 |
ULP0 @ 750kHz | 0.30/1.4 | 0.34/6.8 | 0.35/12.1 | 0.36/18.3 | 0.36/24.5 | 0.37/35.2 | 240 |
ULP0 @ 12MHz | 0.30/2.4 | 0.34/7.8 | 0.35/13.5 | 0.36/19.2 | 0.36/25.4 | 0.37/35.9 | 15 |
The following figures plot the power consumption of the SAM9X7 Series in ULP0, ULP1 and Idle modes. These figures account for the current consumption in VDDCORE and VDDIN33: Power (mW) = IDDIN33 x 3.3V + IDDCORE x 1.15V, with IDDIN33 and + IDDCORE as measured in the above table.
The following table shows the specification for ULP1 mode current consumption on VDDCORE and VDDIN33.
Symbol | Parameter | Conditions | Min | Max | Unit |
---|---|---|---|---|---|
IVDDCORE | Current consumption in ULP1 mode (VDDCORE) | VDDCORE = 1.0V, TA = 105°C | – | 50 | mA |
VDDCORE = 1.0V, TA = 85°C | – | 30 | mA | ||
IVDDIN33 | Current consumption in ULP1 mode (VDDIN33) | VDDIN33 = 3.3V | – | 300 | µA |