SAM3S4B Atmel Corporation, SAM3S4B Datasheet - Page 1081

• 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

41.11.7.1
Table 41-51. USART SPI Timings
6500C–ATARM–8-Feb-11
Symbol
SPI
SPI
SPI
SPI
SPI
SPI
SPI
SPI
SPI
0
1
2
3
4
5
6
7
8
USART SPI TImings
Parameter
SCK Period
Input Data Setup Time
Input Data Hold Time
Chip Select Active to Serial Clock
Output Data Setup Time
Serial Clock to Chip Select Inactive
SCK falling to MISO
MOSI Setup time before SCK rises
MOSI Hold time after SCK rises
Figure 41-30. USART SPI Slave mode: (Mode 0 or 3)
MISO
MOSI
NSS
SCK
SPI
15
Master Mode
Slave Mode
SPI
1.8V domain
3.3V domain
1.8V domain
3.3V domain
9
1.8v domain
3.3v domain
1.8v domain
3.3v domain
1.8v domain
3.3v domain
1.8v domain
3.3v domain
1.8v domain
3.3v domain
1.8v domain
3.3v domain
1.8v domain
3.3v domain
Conditions
SPI
10
0.5 * t
0.5 * t
1.5 * t
1.5 * SCK + 0.25
1.5 * SCK + 0.2
2 * t
2 * t
SPI
1.5 * t
1 * SCK - 1.6
1 * SCK - 1.4
t
11
CPMCK
CPMCK
CPMCK
0 + 1.4
0 + 1.3
CPMCK
CPMCK
CPMCK
Min
-4.5
-3.8
CPMCK
6.6
7
* 6
+ 2.1
+ 1.9
+ 3.2
+ 2.9
+ 0.7
+1
Max
3.9
3.6
27
24
SAM3S
SPI
14
Units
ns
ns
ns
ns
ns
ns
ns
ns
ns
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