Power Consumption

The values are measured power consumption under the following conditions, except where noted:
Table 1. Power Consumption in Active and Idle Mode
Mode Description Condition Min. Typ. Max. Unit
Active Active power consumption CLK_CPU=20 MHz VDD=5V - 7.8 - mA
CLK_CPU=10 MHz (div2) VDD=5V - 4.3 - mA
VDD=3V - 2.4 - mA
CLK_CPU=5 MHz (div4) VDD=5V - 2.4 - mA
VDD=3V - 1.4 - mA
VDD=2V - 0.9 - mA
CLK_CPU=32 KHz (OSCULP32K) VDD=5V - 16 - µA
VDD=3V - 9.2 - µA
VDD=2V - 6.3 - µA
Idle Idle power consumption CLK_CPU=20 MHz VDD=5V - 2.1 - mA
CLK_CPU=10 MHz (div2) VDD=5V - 1.3 - mA
VDD=3V - 0.7 - mA
CLK_CPU=5 MHz (div4) VDD=5V - 0.9 - mA
VDD=3V - 0.5 - mA
VDD=2V - 0.3 - mA
CLK_CPU=32 KHz (OSCULP32K) VDD=5V - 4.3 - µA
VDD=3V - 2.1 - µA
VDD=2V - 1.4 - µA
Table 2. 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