AT91SAM7X512-AU-999 Atmel, AT91SAM7X512-AU-999 Datasheet - Page 27

• Manufacturer Part Number: AT91SAM7X512-AU-999
• Description: IC MCU ARM 512K HS FLASH 100LQFP
• Manufacturer: Atmel
• Series: AT91SAMr

Specifications of AT91SAM7X512-AU-999

• Core Processor: ARM7
• Core Size: 16/32-Bit
• Speed: 55MHz
• Connectivity: CAN, Ethernet, I²C, SPI, SSC, UART/USART, USB
• Peripherals: Brown-out Detect/Reset, DMA, POR, PWM, WDT
• Number Of I /o: 62
• Program Memory Size: 512KB (512K x 8)
• Program Memory Type: FLASH
• Ram Size: 128K x 8
• Voltage - Supply (vcc/vdd): 1.65 V ~ 1.95 V
• Data Converters: A/D 8x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 100-LQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

9.2
6120H–ATARM–17-Feb-09
Clock Generator
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
AT91SAM7X512/256/128 Preliminary
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
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