10.1.10.3 Power Consumption in ULP0, ULP1 and Idle Modes

  • Figure 10-47, Figure 10-48, Table 10-67 and Table 10-68 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 figure.
Figure 10-46. Current Measurement in ULP0, ULP1 and Idle Modes
Table 10-67. Typical Power Consumption in ULP0, ULP1 and Idle Modes
Low-Power Mode (mW)PVDD3v3PVDDCOREPVDD3v3PVDDCOREPVDD3v3PVDDCOREPVDD3v3PVDDCOREPVDD3v3PVDDCOREPVDD3v3PVDDCOREWake-up Time (μs)
TA (°C)-4025507085105
Idle (MCK @ 266 MHz)0.6637.950.8344.850.8651.750.8959.800.8970.150.9286.2510x tCPU_CLK
ULP10.661.580.834.730.868.930.8915.750.8923.100.9233.601515
ULP1 @ 1.0V0.661.000.833.000.866.000.8910.000.8914.500.9223.00
ULP0 @ 32 kHz0.661.260.837.040.8612.500.8919.110.8925.730.9236.965625
ULP0 @ 187.5 kHz 0.991.371.127.091.1612.601.1919.221.1925.731.2236.96960
ULP0 @ 750 kHz0.991.471.127.141.1612.711.1919.221.1925.731.2236.96240
ULP0 @ 12 MHz0.992.521.128.191.1614.181.1920.161.1926.671.2237.7015

The following figures plot the power consumption of the SAM9X7 Series in ULP0, ULP1 and Idle modes. These figures account for the power 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 10-47. Typical Power Consumption in Idle Mode
Figure 10-48. Typical Power Consumption in ULP0 and ULP1 Modes

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

Table 10-68. Power Consumption in ULP1 Mode
SymbolParameterConditionsMinMaxUnit
PVDDCOREPower consumption in ULP1 mode (VDDCORE)VDDCORE = 1.0V, TA = 105°C50mW
Power consumption in ULP1 mode (VDDCORE)VDDCORE = 1.0V, TA = 85°C30mW
PVDDIN33Power consumption in ULP1 mode (VDDIN33)VDDIN33 = 3.3V1mW