SAM3N4B Atmel Corporation, SAM3N4B Datasheet - Page 724

• Manufacturer Part Number: SAM3N4B
• Manufacturer: Atmel Corporation

Specifications of SAM3N4B

• Flash (kbytes): 256 Kbytes
• Pin Count: 64
• Max. Operating Frequency: 48 MHz
• Cpu: Cortex-M3
• # Of Touch Channels: 32
• Hardware Qtouch Acquisition: No
• Max I/o Pins: 79
• Ext Interrupts: 79
• Quadrature Decoder Channels: 2
• Usb Speed: No
• Usb Interface: No
• Spi: 3
• Twi (i2c): 2
• Uart: 4
• Ssc: 1
• Graphic Lcd: No
• Video Decoder: No
• Camera Interface: No
• Adc Channels: 10
• Adc Resolution (bits): 10
• Adc Speed (ksps): 384
• Resistive Touch Screen: No
• Dac Channels: 1
• Dac Resolution (bits): 10
• Temp. Sensor: No
• Crypto Engine: No
• Sram (kbytes): 24
• Self Program Memory: YES
• Dram Memory: No
• Nand Interface: No
• 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: no / no
• Timers: 6
• Output Compare Channels: 6
• Input Capture Channels: 3
• Pwm Channels: 4
• 32khz Rtc: Yes
• Calibrated Rc Oscillator: Yes

Table 35-38. USART SPI Timings
724
Symbol
SPI
SPI
SPI
SPI
SPI
SPI
SPI
SPI
SPI
SPI
0
1
2
3
4
5
6
7
8
9
SAM3N
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
SCK rising to MISO
Figure 35-18. USART SPI Slave mode: (Mode 0 or 3)
MISO
MOSI
SCK
NSS
SPI
15
Master Mode
Slave Mode
SPI
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
1.8v domain
3.3v domain
1.8v domain
3.3v domain
1.8v domain
3.3v domain
Conditions
SPI
10
SPI
0.5 * MCK + 2.6
0.5 * MCK + 2.4
1.5 * SCK - 0.9
1.5 * SCK - 0.6
1.5 * MCK -0.3
1.5 * MCK -0.3
2 * MCK + 1.9
2 * MCK + 1.7
1 *SCK - 4.6
1 *SCK - 6
11
MCK/6
Min
-4.7
5.7
5.3
5.9
5.6
-6
0
0
11011A–ATARM–04-Oct-10
Max
22.6
19.8
19.4
3.8
3.6
22
SPI
14
Units
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns