Datasheet

105
42023GS–SAM–03/2014
ATSAM4L8/L4/L2
9.5.2 Power Scaling 1
The values in Table 34-7 are measured values of power consumption under the following condi-
tions, except where noted:
• Operating conditions for power scaling mode 1
–V
VDDIN
= 3.3V
• 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) and OSC32K (32kHz crystal oscillator) stopped
– RCFAST Running at 12MHz
• Clocks
– RCFAST 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
SLEEP0 Switching mode
25°C
9 * Main clock
cycles
3817 4033
µA
85°C 4050 4507
SLEEP1 Switching mode
25°C
9 * Main clock
cycles + 500ns
2341 2477
85°C 2525 2832
SLEEP2 Switching mode
25°C
9 * Main clock
cycles + 500ns
1758 1862
85°C 1925 1971
SLEEP3 Linear mode
25°C
51 60
WAIT
OSC32K and AST running
Fast wake-up enable
1.5µs
6.7
OSC32K and AST stopped
Fast wake-up enable
5.5
RETENTION
OSC32K running
AST running at 1kHz
1.5µs
3.9
AST and OSC32K stopped 3.0
BACKUP
OSC32K running
AST running at 1kHz
1.5 3.1
AST and OSC32K stopped 0.9 1.7
1. These values are based on characterization. These values are not covered by test limits in production.
Table 9-7. ATSAM4L8 Current consumption and Wakeup time for power scaling mode 0 and 2
Mode Conditions T
A
Typical
Wakeup Time Typ Max
(1)
Unit