38.4 Power Consumption

The values are measured power consumption under the following conditions, except where noted:
  • VDD=3V
  • T=25°C
  • OSC20M (16 MHz setting) used as system clock source, except where otherwise specified
  • System power consumption measured with peripherals disabled and without I/O drive
Table 38-4. Power Consumption in Active and Idle Mode
Mode Description Condition Typ. Max. Unit
Active Active power consumption CLK_CPU=16 MHz VDD=5V 8.0 10 mA
CLK_CPU=8 MHz (div2) VDD=5V 4.0 5.5 mA
VDD=3V 2.2 3.5 mA
CLK_CPU=32 KHz (OSCULP32K) VDD=5V 19 35 µA
VDD=3V 11 25 µA
Idle Idle power consumption CLK_CPU=16 MHz VDD=5V 3.4 5 mA
CLK_CPU=8 MHz (div2) VDD=5V 1.7 2.5 mA
VDD=3V 1.4 1.5 mA
CLK_CPU=32 KHz (OSCULP32K) VDD=5V 8.2 20 µA
VDD=3V 4.2 15 µA
Table 38-5. Power Consumption in Power-Down, Standby, and Reset Mode
Mode Description Condition Typ. 25°C Max. 85°C Max. 125°C Unit
Standby Standby power consumption RTC running at 1.024 kHz from external XOSC32K (CL=7.5 pF) VDD=3V 0.69 - - µA
RTC running at 1.024 kHz from internal OSCULP32K VDD=3V 0.71 6.0 8.0 µA
Power Down/Standby Power-down/Standby power consumption are the same when all peripherals are stopped All peripherals stopped VDD=3V 0.1 5.0 7.0 µA
Reset Reset power consumption Reset line pulled down VDD=3V 100 - - µA