ATSAM3X4EA-AU Atmel, ATSAM3X4EA-AU Datasheet - Page 424

• Manufacturer Part Number: ATSAM3X4EA-AU
• Description: ARM Microcontrollers - MCU QFP144,GREEN, IND TEMP, MRL A
• Manufacturer: Atmel

Specifications of ATSAM3X4EA-AU

• Rohs: yes
• Core: ARM Cortex M3
• Processor Series: SAM3X
• Data Bus Width: 32 bit
• Maximum Clock Frequency: 84 MHz
• Program Memory Size: 256 KB
• Data Ram Size: 64 KB
• On-chip Adc: Yes
• Operating Supply Voltage: 2.4 V to 3.6 V
• Operating Temperature Range: - 40 C to +85 C
• Package / Case: LQFP-144
• Mounting Style: SMD/SMT
• Factory Pack Quantity: 60

• DS: Drive Strength (only for low-power SDRAM)
DS parameter is transmitted to the SDRAM during initialization to select the SDRAM strength of data output. This parame-
ter must be set according to the SDRAM device specification.
After initialization, as soon as DS field is modified and self-refresh mode is activated, the Extended Mode Register is
accessed automatically and DS bits are updated before entry in self-refresh mode. This feature is not supported when
SDRAMC shares an external bus with another controller.
• TIMEOUT: Time to define when low-power mode is enable
Values which are not listed in the table must be considered as “reserved”.
424
424
Value
00
01
10
SAM3X/A
SAM3X/A
LP_LAST_XFER_128
LP_LAST_XFER_64
LP_LAST_XFER
Name
The SDRAM controller activates the SDRAM low-power mode immediately after the end
of the last transfer.
The SDRAM controller activates the SDRAM low-power mode 64 clock cycles after the
end of the last transfer.
The SDRAM controller activates the SDRAM low-power mode 128 clock cycles after the
end of the last transfer.
Description
11057B–ATARM–28-May-12
11057B–ATARM–28-May-12