SAM3S4B Atmel Corporation, SAM3S4B Datasheet - Page 1055

• Manufacturer Part Number: SAM3S4B
• 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

41.4.7
Table 41-22. Crystal Characteristics
41.4.8
Table 41-23. XIN Clock Electrical Characteristics (In Bypass Mode)
Note:
6500C–ATARM–8-Feb-11
Symbol
ESR
C
C
Symbol
1/(t
t
t
t
t
t
V
V
CPXIN
CHXIN
CLXIN
CLCH
CHCL
XIN_IL
XIN_IH
M
SHUNT
CPXIN
1. These characteristics apply only when the 3-20 MHz XTAL Oscillator is in bypass mode.
)
3 to 20 MHz Crystal Characteristics
3 to 20 MHz XIN Clock Input Characteristics in Bypass Mode
Parameter
Equivalent Series Resistor (Rs)
Motional capacitance
Shunt capacitance
Parameter
XIN Clock Frequency
XIN Clock Period
XIN Clock High Half-period
XIN Clock Low Half-period
Rise Time
Fall Time
V
V
XIN
XIN
Input Low-level Voltage
Input High-level Voltage
V
XIN_IL
V
XIN_IH
t
CPXIN
Conditions
Fundamental @ 3 MHz
Fundamental @ 8 MHz
Fundamental @ 12 MHz
Fundamental @ 16 MHz
Fundamental @ 20 MHz
Conditions
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
t
CPXIN
V
0.7 x
Min
Min
400
400
-0.3
VDDIO
t
20
CLCH
8
8
t
CPXIN
Typ
Typ
t
CHXIN
V
V
Max
VDDIO
200
100
0.3 x
Max
80
80
50
VDDIO
0.3
8
7
50
t
CHCL
SAM3S
+
Units
MHz
Unit
ns
ns
ns
ns
ns
pF
fF
V
V
Ω
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