SAM3U2E Atmel Corporation, SAM3U2E Datasheet - Page 457
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SAM3U2E
Manufacturer Part Number
SAM3U2E
Description
Manufacturer
Atmel Corporation
Specifications of SAM3U2E
Flash (kbytes)
128 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)
36
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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27. Clock Generator
27.1
6430E–ATARM–29-Aug-11
Description
The Clock Generator is made up of:
It provides the following clocks:
The Clock Generator User Interface is embedded within the Power Management Controller and
is described in
the Clock Generator registers are named CKGR_.
• A Low Power 32,768 Hz Slow Clock Oscillator with bypass mode
• A Low Power RC Oscillator
• A 3 to 20 MHz Crystal Oscillator (12 MHz needed in case of USB), which can be bypassed
• A factory programmed Fast RC Oscillator, 3 output frequencies can be selected: 4, 8 or
• A 480 MHz UTMI PLL providing a clock for the USB High Speed Device Controller
• A 96 to 192 MHz programmable PLL (input from 8 to 16 MHz), capable of providing the clock
• SLCK, the Slow Clock, which is the only permanent clock within the system
• MAINCK is the output of the Main Clock Oscillator selection: either Crystal Oscillator or
• PLLACK is the output of the Divider and 96 to 192 MHz programmable PLL (PLLA)
• UPLLCK is the output of the 480 MHz UTMI PLL (UPLL)
12 MHz. By default 4 MHz is selected.
MCK to the processor and to the peripherals.
4/8/12 MHz Fast RC Oscillator
Section 28.14 ”Power Management Controller (PMC) User
SAM3U Series
Interface”. However,
457
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