ATSAM3U4EA-CU Atmel, ATSAM3U4EA-CU Datasheet - Page 23

• Manufacturer Part Number: ATSAM3U4EA-CU
• Description: IC MCU 32BIT 256KB FLSH 144LFBGA
• Manufacturer: Atmel
• Series: SAM3Ur

Specifications of ATSAM3U4EA-CU

• Core Processor: ARM® Cortex-M3™
• Core Size: 32-Bit
• Speed: 96MHz
• Connectivity: EBI/EMI, I²C, MMC, SPI, SSC, UART/USART, USB
• Peripherals: Brown-out Detect/Reset, DMA, I²S, POR, PWM, WDT
• Number Of I /o: 96
• Program Memory Size: 256KB (256K x 8)
• Program Memory Type: FLASH
• Ram Size: 52K x 8
• Voltage - Supply (vcc/vdd): 1.65 V ~ 1.95 V
• Data Converters: A/D 8x10b, 8x12b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 144-LFBGA
• Processor Series: ATSAM3x
• Core: ARM Cortex M3
• Data Bus Width: 32 bit
• Data Ram Size: 52 KB
• Interface Type: 4xUSART, 2xTWI, 5xSPI, Bus
• Maximum Clock Frequency: 96 MHz
• Number Of Programmable I/os: 96
• Number Of Timers: 8
• Operating Supply Voltage: 1.62 V to 3.6 V
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• 3rd Party Development Tools: JTRACE-CM3, AT91SAM3U-EK, MDK-ARM, RL-ARM, ULINK2
• Development Tools By Supplier: ATSAM3U-EK
• Minimum Operating Temperature: - 40 C
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Lead Free Status / Rohs Status: Details

5.7
Figure 5-5.
6430DS–ATARM–28-Mar-11
Fast Start-Up
Fast Start-Up Sources
WKUP15
WKUP0
WKUP1
The SAM3U allows the processor to restart in a few microseconds while the processor is in wait
mode. A fast start up can occur upon detection of a low level on one of the 19 wake-up inputs.
The fast restart circuitry, as shown in
up signal to the Power Management Controller. As soon as the fast start-up signal is asserted,
the PMC automatically restarts the embedded 4/8/12 MHz fast RC oscillator, switches the mas-
ter clock on this 4/8/12 MHz clock and reenables the processor clock.
usb_wakeup
Falling/Rising
Falling/Rising
rtc_alarm
rtt_alarm
Falling/Rising
Detector
Detector
Detector
Edge
Edge
Edge
USBEN
RTCEN
RTTEN
FSTT15
FSTT0
FSTT1
Figure
5-5, is fully asynchronous and provides a fast start-
fast_restart
SAM3U Series
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