ATSAM4LS4BA-AU View Datasheet(PDF) - Atmel Corporation

Part Name

Description

Manufacturer

ATSAM4LS4BA-AU

ATSAM ARM-based Flash MCU

Atmel Corporation 

ATSAM4L8/L4/L2

6.2.2

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

Figure 6-3. Efficient power strategy:

1.68V 1.80V

VDDIN Voltage

2.00V

2.30V

3.60V

Switching Mode

(BUCK/LDOn

(PA02) =1)

N/A

Possible but

not efficient

Optimal power efficiency

Linear Mode

(BUCK/LDOn

(PA02) =0)

Optimal power efficiency

Possible but not efficient

FCPUMAX

12MHz

PowerScaling PS1(1)

Up to 36MHz In PS0

Up to 12MHz in PS1

Up to 48MHz in PS2

ALL

Typical power

consumption in

RUN mode

212µA/MHz @ FCPU=12MHz(PS1)

306µA/MHz @ FCPU= 48MHz(PS2)

100µA/MHz @ FCPU=12MHz(PS1) @ VVDDIN=3.3V

180µA/MHz @ FCPU=48MHz(PS2) @ VVDDIN=3.3V

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)

49

42023GS–SAM–03/2014

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