67.9.3 Power Consumption in ULP0, ULP1 and Idle Modes

  • Figure 67-41, Figure 67-42, Table 67-59 and Table 67-60 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
Table 67-59. Typical Current Consumption in ULP0, ULP1 and Idle Modes

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.

Figure 67-41. Typical Power Consumption in Idle Mode
Figure 67-42. Typical Current Consumption in ULP0 and ULP1 Modes

The following table shows the specification for ULP1 mode current consumption on VDDCORE and VDDIN33.

Table 67-60. Current Consumption in ULP1 Mode
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