SAM9XE512 Atmel Corporation, SAM9XE512 Datasheet - Page 807

• Manufacturer Part Number: SAM9XE512
• Manufacturer: Atmel Corporation

Specifications of SAM9XE512

• Flash (kbytes): 512 Kbytes
• Pin Count: 217
• Max. Operating Frequency: 180 MHz
• Cpu: ARM926
• Hardware Qtouch Acquisition: No
• Max I/o Pins: 96
• Ext Interrupts: 96
• Usb Transceiver: 3
• Usb Speed: Full Speed
• Usb Interface: Host, Device
• Spi: 2
• Twi (i2c): 2
• Uart: 6
• Ssc: 1
• Ethernet: 1
• Sd / Emmc: 1
• Graphic Lcd: No
• Video Decoder: No
• Camera Interface: Yes
• Adc Channels: 4
• Adc Resolution (bits): 10
• Adc Speed (ksps): 312
• Resistive Touch Screen: No
• Temp. Sensor: No
• Crypto Engine: No
• Sram (kbytes): 32
• Self Program Memory: NO
• External Bus Interface: 1
• Dram Memory: sdram
• Nand Interface: Yes
• Picopower: No
• Temp. Range (deg C): -40 to 85
• I/o Supply Class: 1.8/3.3
• Operating Voltage (vcc): 1.65 to 1.95
• Fpu: No
• Mpu / Mmu: No / Yes
• Timers: 6
• Output Compare Channels: 6
• Input Capture Channels: 6
• 32khz Rtc: Yes
• Calibrated Rc Oscillator: No

43.5.2
Table 43-13. RC Oscillator Characteristics
43.5.3
Table 43-14. Slow Clock Selection
6254C–ATARM–22-Jan-10
Symbol
1/(t
t
OSCSEL
0
1
ST
CPRCz
)
RC Oscillator Characteristics
Slow Clock Selection
Parameter
Crystal Oscillator Frequency
Duty Cycle
Startup Time
The startup counter delay for the slow clock oscillator depends on the OSCSEL signal. The
32,768 Hz startup delay is 1200 ms whereas it is 200 µs for the internal RC oscillator. The pin
OSCSEL must be tied either to GNDBU or VDDBU for correct operation of the device.
Slow Clock
Internal RC
External 32768 Hz
Conditions
AT91SAM9XE128/256/512 Preliminary
Startup Time
200 µs
1200 ms
Min
22
45
Typ
Max
42
55
75
Unit
kHz
µs
%
807