SAM7X512 Atmel Corporation, SAM7X512 Datasheet - Page 26

• Manufacturer Part Number: SAM7X512
• Manufacturer: Atmel Corporation

Specifications of SAM7X512

• Flash (kbytes): 512 Kbytes
• Pin Count: 100
• Max. Operating Frequency: 55 MHz
• Cpu: ARM7TDMI
• Hardware Qtouch Acquisition: No
• Max I/o Pins: 62
• Ext Interrupts: 62
• Usb Transceiver: 1
• Usb Speed: Full Speed
• Usb Interface: Device
• Spi: 2
• Twi (i2c): 1
• Uart: 3
• Can: 1
• Ssc: 1
• Ethernet: 1
• Graphic Lcd: No
• Video Decoder: No
• Camera Interface: No
• Adc Channels: 8
• Adc Resolution (bits): 10
• Adc Speed (ksps): 384
• Resistive Touch Screen: No
• Temp. Sensor: No
• Crypto Engine: No
• Sram (kbytes): 128
• Self Program Memory: NO
• Dram Memory: No
• Nand Interface: No
• Picopower: No
• Temp. Range (deg C): -40 to 85
• I/o Supply Class: 3.3
• Operating Voltage (vcc): 3.0 to 3.6
• Fpu: No
• Mpu / Mmu: no / no
• Timers: 3
• Output Compare Channels: 3
• Input Capture Channels: 3
• Pwm Channels: 4
• 32khz Rtc: Yes
• Calibrated Rc Oscillator: No

9.2
26
Clock Generator
SAM7X512/256/128 Summary
The Clock Generator embeds one low-power RC Oscillator, one Main Oscillator and one PLL
with the following characteristics:
It provides SLCK, MAINCK and PLLCK.
Figure 9-2.
• RC Oscillator ranges between 22 KHz and 42 KHz
• Main Oscillator frequency ranges between 3 and 20 MHz
• Main Oscillator can be bypassed
• PLL output ranges between 80 and 200 MHz
Clock Generator Block Diagram
PLLRC
XOUT
XIN
Clock Generator
Management
Embedded
Status
Oscillator
Oscillator
PLL and
Controller
Divider
Main
Power
RC
Control
Slow Clock
SLCK
Main Clock
MAINCK
PLL Clock
PLLCK
6120GS–ATARM–07-Apr-11