SAM3S1B Atmel Corporation, SAM3S1B Datasheet - Page 39

• Manufacturer Part Number: SAM3S1B
• Manufacturer: Atmel Corporation

Specifications of SAM3S1B

• Flash (kbytes): 64 Kbytes
• Pin Count: 64
• Max. Operating Frequency: 64 MHz
• Cpu: Cortex-M3
• # Of Touch Channels: 23
• Hardware Qtouch Acquisition: No
• Max I/o Pins: 34
• Ext Interrupts: 34
• 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): 16
• 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

Figure 10-3. SAM3S Power Management Controller Block Diagram
10.7
10.8
10.9
6500CS–ATARM–24-Jan-11
Watchdog Timer
SysTick Timer
Real Time Timer
MAINCK
PLLACK
PLLBCK
The SysTick calibration value is fixed at 8000 which allows the generation of a time base of 1 ms
with SystTick clock at 8 MHz (max HCLK/8 = 64 MHz/8).
• 16-bit key-protected only-once-Programmable Counter
• Windowed, prevents the processor to be in a dead-lock on the watchdog access.
• 24-bit down counter
• Self-reload capability
• Flexible System timer
• Real Time Timer, allowing backup of time with different accuracies
SLCK
– 32-bit free-running back-up counter
– Integrates a 16-bit programmable prescaler running on slow clock
Master Clock Controller
MAINCK
PLLBCK
PLLBCK
PLLACK
SLCK
/1,/2,/4,...,/64
Prescaler
Programmable Clock Controller
USB Clock Controller
/1,/2,/4,...,/64
Prescaler
Sleep Mode
ON/OFF
Clock Controller
Processor
Controller
ON/OFF
Divider
Clock
Peripherals
ON/OFF
/8
HCK
int
SystTick
FCLK
MCK
periph_clk[..]
pck[..]
UDPCK
SAM3S Summary
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