34.6 Power Consumption

The values provided in the table Current Consumption are measured values of power consumption under the following conditions, except where noted:

  • Operating conditions:
    • VVDDIN = 3.3 V
  • Wake up time from Sleep mode is measured from the edge of the wakeup signal to the execution of the first instruction fetched in Flash.
  • Oscillators
    • XOSC (crystal oscillator) stopped
    • XOSC32K (32 kHz crystal oscillator) running with external 32 kHz crystal
    • DFLL48M using XOSC32K as reference and running at 48 MHz
  • Clocks
    • DFLL48M used as main clock source, except otherwise specified.
    • CPU, AHB clocks undivided
    • APBA clock divided by 4
    • APBB and APBC bridges off
  • The following AHB module clocks are running: NVMCTRL, APBA bridge
    • All other AHB clocks stopped
  • The following peripheral clocks running: PM, SYSCTRL, RTC
    • All other peripheral clocks stopped
  • I/Os are inactive with internal pull-up
  • CPU is running on Flash with 1 wait states
  • NVMCTRL cache enabled
Table 34-8. Current Consumption (2)
ModeConditionsTAVccMin.Typ.Max.Units
ACTIVECPU running a While(1) algorithm25°C3.3V-2.272.48mA
125°C3.3V-2.413.32
CPU running a While(1) algorithm, with
 GCLKIN as reference25°C3.3V-43*freq +10852*freq +135μA
(with freq in MHz)
125°C3.3V-44*freq +27650*freq +949
CPU running a Fibonacci algorithm25°C3.3V-3.043.26mA
125°C3.3V-3.193.76
CPU running a Fibonacci algorithm, with
 GCLKIN as reference25°C3.3V-59*freq +10962*freq +133μA
(with freq in MHz)
125°C3.3V-60*freq +27658*freq +953
CPU running a CoreMark algorithm25°C3.3V-3.904.42mA
125°C3.3V-4.344.81
CPU running a CoreMark algorithm, with
 GCLKIN as reference25°C3.3V-77* freq +10885* freq +130μA
(with freq in MHz)
125°C3.3V-83 * freq + 28881* freq +974
IDLE0-25°C3.3V-1.281.37mA
125°C3.3V-1.442.05
IDLE1-25°C3.3V-0.971.05
125°C3.3V-1.091.70
IDLE2-25°C3.3V-0.760.83
125°C3.3V-0.881.50
STANDBYXOSC32K running
 RTC running at 1 kHz(1)25°C3.3V-62.0085.00μA
125°C3.3.V-198.00442.00
XOSC32K and RTC stopped(1)25°C3.3V-61.0084.00
125°C(3)3.3V-196.00438
Note:
  1. Measurements were done with SYSCTRL->VREG.bit.RUNSTDBY = 1.
  2. These values are based on characterization and not covered by test limits in production unless otherwise specified.
  3. These values are screened during production.
Table 34-9. Wake-up Time
ModeConditionsTAMin.Typ.Max.Units
IDLE0OSC8M used as main clock source, cache disabled25°C-4.0-μs
125°C-4.0-
IDLE1OSC8M used as main clock source, cache disabled25°C-12.1-
125°C-14.9-
IDLE2OSC8M used as main clock source, cache disabled25°C-13.0-
125°C-15.8-
STANDBYOSC8M used as main clock source, cache disabled25°C-19.6-
125°C-20.6-
Figure 34-1. Measurement Schematic