SAM3U2E Atmel Corporation, SAM3U2E Datasheet - Page 1122
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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43.4.3
Table 43-18. 32.768 kHz Crystal Oscillator Characteristics
Notes:
Where
43.4.4
Table 43-19. Crystal Characteristics
1122
Symbol
F
I
P
R
C
C
Symbol
ESR
C
C
DDST
req
ON
f
LEXT
para
M
SHUNT
C
1. R
PCB
SAM3U Series
32.768 kHz Crystal Oscillator Characteristics
32.768 kHz Crystal Characteristics
is the capacitance of the printed circuit board (PCB) track layout from the crystal to the SAM3U pin.
S
is the series resistor.
Parameter
Operating Frequency
Supply Ripple Voltage (on VDDBU)
Duty Cycle
Startup Time
Current consumption
Standby Current Consumption
Drive level
Internal resistor
Maximum external capacitor
on XIN32 and XOUT32
Internal Parasitic Capacitance
Parameter
Equivalent Series Resistor Rs
Motional capacitance
Shunt capacitance
C
LEXT
XIN32
C
LEXT
= 2x(
C
CRYSTAL
Conditions
Normal mode with crystal
Rms value, 10 KHz to 10 MHz
Rs < 50KΩ
Rs < 100KΩ
(1)
Rs < 50KΩ
Rs < 100KΩ
(1)
Standby mode @ 3.6V
between XIN32 and XOUT32
Conditions
Crystal @ 32.768 KHz
Crystal @ 32.768 KHz
Crystal @ 32.768 KHz
SAM3U
–
C
para
–
C
CL = 12.5pF
CL = 6pF
CL = 12.5pF
CL = 6pF
CL = 12.5pF
CL = 6pF
CL = 12.5pF
CL = 6pF
PCB
C
XOUT32
LEXT
).
Min
0.6
0.6
Min
1.2
40
Typ
650
450
900
650
1.4
Typ
50
10
50
32.768
1200
1400
1200
1600
1400
Max
900
300
500
0.1
1.6
30
60
22
5
6430E–ATARM–29-Aug-11
Max
100
3
2
Unit
KHz
mV
μW
MΩ
ms
nA
nA
pF
pF
%
Unit
KΩ
pF
fF
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