Atmel SAM4L Xplained Pro Starter Kit Atmel ATSAM4L-XSTK ATSAM4L-XSTK 数据表
产品代码
ATSAM4L-XSTK
45
42023E–SAM–07/2013
ATSAM4L8/L4/L2
5.2.2
Typical Powering Schematics
The ATSAM4L8/L4/L2 supports the Single supply mode from 1.68V to 3.6V. Depending on the
input voltage range and on the final application frequency, it is recommended to use the follow-
ing table in order to choose the most efficient power strategy
input voltage range and on the final application frequency, it is recommended to use the follow-
ing table in order to choose the most efficient power strategy
Figure 5-3.
Efficient power strategy:
N/A
Possible but
not efficient
1.68V
1.80V
2.00V
2.30V
3.60V
Optimal power efficiency
Linear Mode
(BUCK/LDOn
(PA02) =0)
Optimal power efficiency
Possible but not efficient
Switching Mode
(BUCK/LDOn
(PA02) =1)
F
CPUMAX
12MHz
PowerScaling
PS1
(1)
Up to 36MHz In PS0
Up to 12MHz in PS1
Up to 48MHz in PS2
Up to 48MHz in PS2
ALL
VDDIN Voltage
Typical power
consumption in
RUN mode
100µA/MHz @ F
CPU
=12MHz(PS1) @ V
VDDIN
=3.3V
180µA/MHz @ F
CPU
=48MHz(PS2) @ V
VDDIN
=3.3V
212µA/MHz @ F
CPU
=12MHz(PS1)
306µA/MHz @ F
CPU
= 48MHz(PS2)
Typical power
consumption in
RET mode
1.5µA
Note 1. The SAM4L boots in PS0 on RCSYS(115kHz), then the application must switch to
PS1 before running on higher frequency (<12MHz)
PS1 before running on higher frequency (<12MHz)