SAM3U4E Atmel Corporation, SAM3U4E Datasheet - Page 21
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SAM3U4E
Manufacturer Part Number
SAM3U4E
Description
Manufacturer
Atmel Corporation
Specifications of SAM3U4E
Flash (kbytes)
256 Kbytes
Pin Count
144
Max. Operating Frequency
96 MHz
Cpu
Cortex-M3
# Of Touch Channels
57
Hardware Qtouch Acquisition
No
Max I/o Pins
96
Ext Interrupts
96
Usb Transceiver
1
Quadrature Decoder Channels
1
Usb Speed
Hi-Speed
Usb Interface
Device
Spi
5
Twi (i2c)
2
Uart
5
Ssc
1
Sd / Emmc
1
Graphic Lcd
No
Video Decoder
No
Camera Interface
No
Adc Channels
16
Adc Resolution (bits)
12
Adc Speed (ksps)
384
Resistive Touch Screen
No
Temp. Sensor
No
Crypto Engine
No
Sram (kbytes)
50
Self Program Memory
YES
External Bus Interface
1
Dram Memory
No
Nand Interface
Yes
Picopower
No
Temp. Range (deg C)
-40 to 85
I/o Supply Class
1.8/3.3
Operating Voltage (vcc)
1.62 to 3.6
Fpu
No
Mpu / Mmu
Yes / No
Timers
3
Output Compare Channels
3
Input Capture Channels
3
Pwm Channels
4
32khz Rtc
Yes
Calibrated Rc Oscillator
Yes
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5.5.4
Table 5-1.
Notes:
6430E–ATARM–29-Aug-11
Mode
Backup
Mode
Wait
Mode
Sleep
Mode
1. When considering wake-up time, the time required to start the PLL is not taken into account. Once started, the device works
2. The external loads on PIOs are not taken into account in the calculation.
3. BOD current consumption is not included.
4. Current consumption on VDDBU.
5. 13 μA total current consumption - without using internal voltage regulator.
6. Depends on MCK frequency.
7. In this mode the core is supplied and not clocked but some peripherals can be clocked.
Registers,
Oscillator
RTC RTT
(VDDBU
Region)
Backup
SUPC,
32 kHz
Low Power Mode Summary Table
POR
with the 4/8/12 MHz Fast RC oscillator. The user has to add the PLL start-up time if it is needed in the system. The wake-up
time is defined as the time taken for wake up until the first instruction is fetched.
20 μA total current consumption - using internal voltage regulator.
ON
ON
ON
Low Power Mode Configuration Summary
Regulator
SHDN =0
SHDN =1
SHDN =1
OFF
ON
ON
The modes detailed above are the main low power modes. Each part can be set to on or off sep-
arately and wake up sources can be individually configured.
of the configurations of the low power modes.
(Not powered)
Peripherals
(Not clocked)
(Not clocked)
Powered
Memory
Powered
Core
OFF
(7)
+SLEEPDEEP
+SLEEPDEEP
+SLEEPDEEP
+LPM bit = 1
+LPM bit = 0
Mode Entry
WFE or WFI
bit = 1
bit = 0
bit = 0
WFE
WFE
FWUP pin
WKUP0-15 pins
BOD alarm
RTC alarm
RTT alarm
Any Event from: Fast
startup through
WKUP0-15 pins
RTC alarm
RTT alarm
USB wake-up
Entry mode =WFI
Interrupt Only; Entry
mode =WFE Any
Enabled Interrupt
and/or Any Event
from: Fast start-up
through WKUP0-15
pins
RTC alarm
RTT alarm
USB wake-up
Potential Wake Up
Sources
Reset
Clocked
back
Clocked
back
Wake Up
Core at
Previous
state saved
Previous
state saved
Previous
state saved
while in Low
Power Mode
PIO State
Table 5-1
PIOA &
PIOB &
PIOC
Inputs with
pull ups
Unchanged 13 μA/20 μA
Unchanged
at Wake Up
PIO State
SAM3U Series
below shows a summary
2.5 μA typ
(6)
Consumption
(2) (3)
(4)
(5)
< 0.5 ms
< 10 μs
(6)
Wake-up
Time
(1)
21
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