Atmel SAM4L-EK Atmel ATSAM4L-EK ATSAM4L-EK Data Sheet

42023E–SAM–07/2013

The values in 

 are measured values of power consumption under the following condi-

tions, except where noted:

• Operating conditions for power scaling mode 0 and 2

– V

VDDIN

 = 3.3V

– Power Scaling mode 0 is used for CPU frequencies under 36MHz

– Power Scaling mode 2 is used for CPU frequencies above 36MHz

• Wake up time from low power modes is measured from the edge of the wakeup signal to the 

first instruction fetched in flash.

• Oscillators

– OSC0 (crystal oscillator) stopped

– OSC32K (32kHz crystal oscillator) running with external 32kHz crystal

– DFLL using OSC32K as reference and running at 48MHz

• Clocks

– DFLL used as main clock source

– CPU, AHB clocks undivided

– APBC and APBD clocks divided by 4

– APBA and APBB bridges off

– The following peripheral clocks running

• PM, SCIF, AST, FLASHCALW, APBC and APBD bridges

– All other peripheral clocks stopped

• I/Os are inactive with internal pull-up

• CPU is running on flash with 1 wait state

• Low power cache enabled

• BOD18 and BOD33 disabled

ATSAM4L4/2 Current consumption and Wakeup time for power scaling mode 0 and 2

RUN

CPU running a Fibonacci algorithm

Linear mode

25°C

N/A

296

326

µA/MHz

85°C

300

332

CPU running a CoreMark algorithm

Linear mode

25°C

N/A

320

377

85°C

326

380

CPU running a Fibonacci algorithm

Switching mode

25°C

N/A

177

198

85°C

179

200

CPU running a CoreMark algorithm

Switching mode

25°C

N/A

186

232

85°C

195

239