36.4 Power Consumption

The values are measured power consumption under the following conditions, except where noted:
  • VDD = 3V
  • T = 25°C
  • OSC20M used as the system clock source, except where otherwise specified
  • System power consumption measured with peripherals disabled and without I/O drive
Table 36-4. Power Consumption in Active and Idle Mode
Mode Description Condition Typ. Max. Unit
Active Active power consumption CLK_CPU = 20 MHz (OSC20M) VDD = 5V 10.0 - mA
CLK_CPU = 10 MHz (OSC20M div2) VDD = 5V 5.3 - mA
VDD = 3V 3.0 - mA
CLK_CPU = 5 MHz (OSC20M div4) VDD = 5V 3.0 - mA
VDD = 3V 1.7 - mA
VDD = 2V 1.1 - mA
CLK_CPU = 32.768 kHz (OSCULP32K) VDD = 5V 19.2 - µA
VDD = 3V 10.9 - µA
VDD = 2V 7.4 - µA
Idle Idle power consumption CLK_CPU = 20 MHz (OSC20M) VDD = 5V 2.9 6.3(1) mA
CLK_CPU = 10 MHz (OSC20M div2) VDD = 5V 1.5 3.1(1) mA
VDD = 3V 0.85 1.9(1) mA
CLK_CPU = 5 MHz (OSC20M div4) VDD = 5V 0.75 1.6(1) mA
VDD = 3V 0.4 1.2 mA
VDD = 2V 0.3 - mA
CLK_CPU = 32.768 kHz (OSCULP32K) VDD = 5V 5.7 20(1) µA
VDD = 3V 2.9 15(1) µA
VDD = 2V 1.9 - µA
Note:
  1. These values are based on characterization and not covered by production test limits.
Table 36-5. Power Consumption in Power-Down, Standby, and Reset Mode
Mode Description Condition Typ. 25°C Max. 25°C Max. 85°C(1) 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 3.0 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 2.0 5.0 7.0 µA
Reset Reset power consumption Reset line pulled down VDD = 3V 100 - - - µA
Note:
  1. These values are based on characterization and not covered by production test limits.