SAM3S4B Atmel Corporation, SAM3S4B Datasheet - Page 1054
SAM3S4B
Manufacturer Part Number
SAM3S4B
Description
Manufacturer
Atmel Corporation
Specifications of SAM3S4B
Flash (kbytes)
256 Kbytes
Pin Count
64
Max. Operating Frequency
64 MHz
Cpu
Cortex-M3
# Of Touch Channels
23
Hardware Qtouch Acquisition
No
Max I/o Pins
79
Ext Interrupts
79
Usb Transceiver
1
Quadrature Decoder Channels
1
Usb Speed
Full Speed
Usb Interface
Device
Spi
3
Twi (i2c)
2
Uart
4
Ssc
1
Sd / Emmc
1
Graphic Lcd
No
Video Decoder
No
Camera Interface
No
Adc Channels
10
Adc Resolution (bits)
12
Adc Speed (ksps)
1000
Analog Comparators
1
Resistive Touch Screen
No
Dac Channels
2
Dac Resolution (bits)
12
Temp. Sensor
Yes
Crypto Engine
No
Sram (kbytes)
48
Self Program Memory
YES
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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41.4.6
Table 41-21. 3 to 20 MHz Crystal Oscillator Characteristics
Notes:
1054
Symbol
F
F
T
I
P
R
C
C
DD_ON
req
req_bypass
ON
ON
f
LEXT
L
1. R
2. Rs = 100-200 Ohms; Cs = 2.0 - 2.5pF; Cm = 2 – 1.5 fF(typ, worst case) using 1 KΩ 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).
SAM3S
3 to 20 MHz Crystal Oscillator Characteristics
S
is the series resistor
Parameter
Operating Frequency
Operating Frequency In Bypass Mode
Supply Ripple Voltage (on VDDPLL)
Duty Cycle
Startup Time
Current consumption
Drive level
Internal resistor
Maximum external capacitor
on XIN and XOUT
Internal Equivalent Load Capacitance
C
Where
the SAM3 pin.
LEXT
= 2x(
C
PCB
C
CRYSTAL
is the capacitance of the printed circuit board (PCB) track layout from the crystal to
–
C
L
–
C
C
XIN
PCB
LEXT
Conditions
Normal mode with crystal
External Clock on XIN
Rms value, 10 KHz to 10 MHz
3 MHz, C
8 MHz, C
12 to 16 MHz, C
20 MHz, C
3 MHz
8 MHz
12 to 16 MHz
20 MHz
3 MHz
8 MHz
12 MHz, 16 MHz, 20 MHz
between XIN and XOUT
Integrated Load Capacitance
(XIN and XOUT in series)
).
(2)
(3)
(5)
SHUNT
SHUNT
SHUNT
C
(4)
SAM3
Crystal
= 3pF
= 7pF
SHUNT
= 7pF
C
L
= 7pF
R=1K if Crystal Frequency
C
XOUT
LEXT
is lower than 8MHz
Min
7.5
40
3
Typ
150
200
250
350
9.5
16
50
1
Max
14.5
11.5
6500C–ATARM–8-Feb-11
230
300
350
450
1.4
20
50
30
60
15
30
50
10
4
1
MHz
MHz
Unit
MΩ
mV
µW
ms
µA
pF
pF
%
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