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
ModeDescriptionConditionTyp.Max.Unit
ActiveActive power consumptionCLK_CPU = 20 MHz (OSC20M)VDD = 5V9.6-mA
CLK_CPU = 10 MHz (OSC20M div2)VDD = 5V5.1-mA
VDD = 3V2.8-mA
CLK_CPU = 5 MHz (OSC20M div4)VDD = 5V3.0-mA
VDD = 3V1.6-mA
VDD = 2V1.1-mA
CLK_CPU = 32.768 kHz (OSCULP32K)VDD = 5V19-µA
VDD = 3V11-µA
VDD = 2V7.3-µA
IdleIdle power consumptionCLK_CPU = 20 MHz (OSC20M)VDD = 5V4.26.3(1)mA
CLK_CPU = 10 MHz (OSC20M div2)VDD = 5V2.43.1(1)mA
VDD = 3V1.31.9(1)mA
CLK_CPU = 5 MHz (OSC20M div4)VDD = 5V1.52.0(1)mA
VDD = 3V0.81.2mA
VDD = 2V0.5-mA
CLK_CPU = 32.768 kHz (OSCULP32K)VDD = 5V8.020(1)µA
VDD = 3V4.015(1)µA
VDD = 2V2.6-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
ModeDescriptionConditionTyp. 25°CMax. 25°CMax. 85°C(1)Max. 125°CUnit
StandbyStandby power consumptionRTC running at 1.024 kHz from external XOSC32K (CL=7.5 pF)VDD = 3V0.69---µA
RTC running at 1.024 kHz from internal OSCULP32KVDD = 3V0.713.06.08.0µA
Power Down/StandbyPower-down/Standby power consumption are the same when all peripherals are stoppedAll peripherals stoppedVDD = 3V0.12.05.07.0µA
ResetReset power consumptionReset line pulled downVDD = 3V100---µA
Note:
  1. These values are based on characterization and not covered by production test limits.