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
ModeDescriptionConditionTyp.Max.Unit
ActiveActive power consumptionCLK_CPU=16 MHzVDD=5V8.010mA
CLK_CPU=8 MHz (div2)VDD=5V4.05.5mA
VDD=3V2.23.5mA
CLK_CPU=32 KHz (OSCULP32K)VDD=5V1935µA
VDD=3V1125µA
IdleIdle power consumptionCLK_CPU=16 MHz VDD=5V3.45mA
CLK_CPU=8 MHz (div2)VDD=5V1.72.5mA
VDD=3V1.41.5mA
CLK_CPU=32 KHz (OSCULP32K)VDD=5V8.220µA
VDD=3V4.215µA
Table 38-5. Power Consumption in Power-Down, Standby, and Reset Mode
ModeDescriptionConditionTyp. 25°CMax. 85°CMax. 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=3V0.716.08.0µA
Power Down/StandbyPower-down/Standby power consumption are the same when all peripherals are stoppedAll peripherals stoppedVDD=3V0.15.07.0µA
ResetReset power consumptionReset line pulled downVDD=3V100--µA