SAM3U4E Atmel Corporation, SAM3U4E Datasheet - Page 23
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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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5.7
Figure 5-5.
6430E–ATARM–29-Aug-11
Fast Start-Up
Fast Start-Up Sources
WKUP15
WKUP0
WKUP1
The SAM3U device allows the processor to restart in a few microseconds while the processor is
in wait mode. A fast start up can occur upon detection of a low level on one of the 19 wake-up
inputs.
The fast restart circuitry, as shown in
up signal to the Power Management Controller. As soon as the fast start-up signal is asserted,
the PMC automatically restarts the embedded 4/8/12 MHz fast RC oscillator, switches the mas-
ter clock on this 4/8/12 MHz clock and reenables the processor clock.
usb_wakeup
rtc_alarm
rtt_alarm
High/Low
High/Low
High/Low
Detector
Detector
Detector
Level
Level
Level
USBEN
RTCEN
RTTEN
FSTT15
FSTT0
FSTT1
Figure
5-5, is fully asynchronous and provides a fast start-
fast_restart
SAM3U Series
23
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