AT91SAM9G45-CU-999 Atmel, AT91SAM9G45-CU-999 Datasheet - Page 247

• Manufacturer Part Number: AT91SAM9G45-CU-999
• Description: IC MCU ARM9 APMC 324TFBGA
• Manufacturer: Atmel
• Series: AT91SAMr

Specifications of AT91SAM9G45-CU-999

• Core Processor: ARM9
• Core Size: 16/32-Bit
• Speed: 400MHz
• Connectivity: EBI/EMI, Ethernet, I²C, IrDA, MMC, SPI, SSC, UART/USART, USB
• Peripherals: AC'97, DMA, I²S, LCD, POR, PWM, WDT
• Number Of I /o: 160
• Program Memory Size: 64KB (64K x 8)
• Program Memory Type: ROM
• Ram Size: 128K x 8
• Voltage - Supply (vcc/vdd): 0.9 V ~ 1.1 V
• Data Converters: A/D 8x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 324-TFBGA
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Lead Free Status / Rohs Status: Supplier Unconfirmed

Figure 22-17. Self Refresh Mode Entry, Timeout = 0
Figure 22-18. Self Refresh Mode Entry, Timeout = 1 or 2
6438F–ATARM–21-Jun-10
COMMAND
COMMAND
DQS[0:1]
DQS[1:0]
BA[1:0]
A[12:0]
DM[1:0]
BA[1:0]
SDCLK
DM[1:0]
D[15:0]
SDCLK
D[15:0]
A[12:0]
CKE
CKE
NOP READ
0
3
NOP READ
0
3
The low-power DDR-SDRAM must remain in self refresh mode for a minimum of TRFC periods
and may remain in self refresh mode for an indefinite period.
The DDR2-SDRAM must remain in self refresh mode for a minimum of TCKE periods and may
remain in self refresh mode for an indefinite period.
BST
BST
NOP
NOP
Da
Da
Db
Db
64 or 128
wait states
PRCHG
PRCHG
NOP
NOP
Trp
Trp
AT91SAM9G45
ARFSH NOP
ARFSH
Enter Self refresh
Mode
Enter Self refresh
Mode
NOP
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