AT91SAM9G20B-CFU Atmel, AT91SAM9G20B-CFU Datasheet - Page 26

• Manufacturer Part Number: AT91SAM9G20B-CFU
• Description: IC MCU ARM9 247-LFBGA
• Manufacturer: Atmel
• Series: AT91SAMr

Specifications of AT91SAM9G20B-CFU

• Core Processor: ARM9
• Core Size: 16/32-Bit
• Speed: 400MHz
• Connectivity: EBI/EMI, Ethernet, I²C, IrDA, ISI, MMC, SPI, SSC, UART/USART, USB
• Peripherals: DMA, POR, PWM, WDT
• Number Of I /o: 96
• Program Memory Size: 64KB (64K x 8)
• Program Memory Type: ROM
• Ram Size: 96K x 8
• Voltage - Supply (vcc/vdd): 0.9 V ~ 1.1 V
• Data Converters: A/D 4x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 247-TFBGA
• Processor Series: AT91SAMx
• Core: ARM926EJ-S
• Data Bus Width: 32 bit
• Data Ram Size: 16 KB
• Interface Type: SPI, TWI, UART
• Maximum Clock Frequency: 400 MHz
• Number Of Programmable I/os: 96
• Operating Supply Voltage: 3.3 V
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• 3rd Party Development Tools: JTRACE-ARM-2M, MDK-ARM, RL-ARM, ULINK2
• Development Tools By Supplier: AT91SAM-ICE, AT91-ISP, AT91SAM9G20-EK
• Minimum Operating Temperature: - 40 C
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Lead Free Status / Rohs Status: Details

9.5
26
Power Management Controller
AT91SAM9G20 Summary
Figure 9-2.
• Provides:
• Five flexible operating modes:
– the Processor Clock PCK
– the Master Clock MCK, in particular to the Matrix and the memory interfaces.The
– the USB Device Clock UDPCK
– independent peripheral clocks, typically at the frequency of MCK
– 2 programmable clock outputs: PCK0, PCK1
– Normal Mode, processor and peripherals running at a programmable frequency
– Idle Mode, processor stopped waiting for an interrupt
– Slow Clock Mode, processor and peripherals running at low frequency
– Standby Mode, mix of Idle and Backup Mode, peripheral running at low frequency,
– Backup Mode, Main Power Supplies off, VDDBU powered by a battery
MCK divider can be 1,2,4,6
processor stopped waiting for an interrupt
Clock Generator Block Diagram
OSCSEL
XOUT32
XIN32
XOUT
XIN
Clock Generator
Management
Slow Clock
On Chip
Controller
RC OSC
Oscillator
Oscillator
PLL and
Divider A
PLL and
Divider B
Status
Power
Main
Control
Main Clock
MAINCK
PLLA Clock
PLLACK
PLLB Clock
PLLBCK
Slow Clock
SLCK
6384DS–ATARM–13-Jan-10