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
Table 10-66. Typical Current Consumption in ULP0, ULP1 and Idle Modes

Low Power Mode\

TA (°C)

IDDIN33/IDDCORE (mA/mA)Wake-up Time (µs)
-40°C25°C50°C70°C85°C105°C
Idle (MCK @ 266 MHz)0.20/330.25/390.26/450.27/520.27/610.28/7510x tCPU_CLK
ULP10.20/1.50.25/4.50.26/8.50.27/150.27/220.28/3215
ULP1 @ 1.0V0.20/1.00.25/3.00.26/6.00.27/100.27/14.50.28/23
ULP0 @ 32 kHz0.20/1.2 0.25/6.70.26/11.90.27/18.20.27/24.50.28/35.25625
ULP0 @ 187.5kHz 0.30/1.3 0.34/6.750.35/12.00.36/18.30.36/24.50.37/35.20960
ULP0 @ 750kHz0.30/1.4 0.34/6.80.35/12.10.36/18.30.36/24.50.37/35.2240
ULP0 @ 12MHz0.30/2.4 0.34/7.80.35/13.50.36/19.20.36/25.40.37/35.915

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 10-46. Typical Power Consumption in Idle Mode
Figure 10-47. Typical Current Consumption in ULP0 and ULP1 Modes

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

Table 10-67. Current Consumption in ULP1 Mode
SymbolParameterConditionsMinMaxUnit
IVDDCORECurrent consumption in ULP1 mode (VDDCORE)VDDCORE = 1.0V, TA = 105°C50mA
VDDCORE = 1.0V, TA = 85°C30mA
IVDDIN33Current consumption in ULP1 mode (VDDIN33)VDDIN33 = 3.3V300µA