SAM3U2E Atmel Corporation, SAM3U2E Datasheet - Page 1124
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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43.4.6
Table 43-21. 3 to 20 MHz Crystal Oscillator Characteristics
Notes:
Where
1124
Symbol
F
F
T
I
I
P
R
C
C
DD_ON
DD_ST
req
req_bypass
ON
ON
f
LEXT
L
C
1. R
2. Rs = 100-200 Ohms; Cs = 2.0 - 2.5pF; Cm = 2 – 1.5 fF(typ, worst case) using 1 Kohm serial resistor on xout.
3. Rs = 50-100 Ohms; Cs = 2.0 - 2.5pF; Cm = 4 - 3 fF(typ, worst case).
4. Rs = 25-50 Ohms; Cs = 2.5 - 3.0pF; Cm = 7 - 5 fF (typ, worst case).
5. Rs = 20-50 Ohms; Cs = 3.2 - 4.0pF; Cm = 10 - 8 fF(typ, worst case).
PCB
SAM3U Series
3 to 20 MHz Crystal Oscillator 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
Operating Frequency In Bypass Mode
Supply Ripple Voltage (on VDDPLL)
Duty Cycle
Startup Time
Current consumption
Standby Current Consumption
Drive level
Internal resistor
External capacitor on XIN and XOUT
Internal Equivalent Load Capacitance
C
XIN
LEXT
C
LEXT
= 2x(
SAM3U
C
Conditions
Normal mode with crystal
External Clock on XIN
Rms value, 10KHz to 10MHz
3 MHz, C
8 MHz, C
12 to 16 MHz, C
20 MHz, C
3 MHz
8 MHz
12 to 16 MHz
20 MHz
Standby mode @ 3.6V
3 MHz
8 MHz
1 2MHz, 16 MHz, 20 MHz
between XIN and XOUT
Integrated Load Capacitance
(XIN and XOUT in series)
Crystal
C
CRYSTAL
C
L
(2)
(3)
(5)
SHUNT
SHUNT
SHUNT
–
(4)
R = 1K if Crystal Frequency
C
C
XOUT
= 3pF
= 7pF
LEXT
L
SHUNT
is lower than 8 MHz
= 7pF
–
C
PCB
= 7pF
).
12.5
Min
7.5
40
3
Typ
150
150
300
400
9.5
16
50
1
Max
14.5
17.5
11.5
250
250
450
550
1.4
20
50
30
60
15
30
50
4
1
5
6430E–ATARM–29-Aug-11
MHz
MHz
Unit
mV
μW
MΩ
ms
μA
nA
pF
pF
%
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