AT32UC3A3128 Atmel Corporation, AT32UC3A3128 Datasheet - Page 229

• Manufacturer Part Number: AT32UC3A3128
• Manufacturer: Atmel Corporation

Specifications of AT32UC3A3128

• Flash (kbytes): 128 Kbytes
• Pin Count: 144
• Max. Operating Frequency: 66 MHz
• Cpu: 32-bit AVR
• # Of Touch Channels: 32
• Hardware Qtouch Acquisition: No
• Max I/o Pins: 110
• Ext Interrupts: 110
• Usb Transceiver: 1
• Usb Speed: Hi-Speed
• Usb Interface: Device + OTG
• Spi: 6
• Twi (i2c): 2
• Uart: 4
• Lin: 4
• Ssc: 1
• Sd / Emmc: 1
• Graphic Lcd: No
• Video Decoder: No
• Camera Interface: No
• Adc Channels: 8
• Adc Resolution (bits): 10
• Adc Speed (ksps): 384
• Resistive Touch Screen: No
• Dac Channels: 2
• Dac Resolution (bits): 16
• Temp. Sensor: No
• Crypto Engine: No
• Sram (kbytes): 128
• Self Program Memory: YES
• External Bus Interface: 1
• Dram Memory: sdram
• Nand Interface: Yes
• Picopower: No
• Temp. Range (deg C): -40 to 85
• I/o Supply Class: 3.0 to 3.6
• Operating Voltage (vcc): 3.0 to 3.6
• Fpu: No
• Mpu / Mmu: Yes / No
• Timers: 6
• Output Compare Channels: 18
• Input Capture Channels: 12
• Pwm Channels: 12
• 32khz Rtc: Yes
• Calibrated Rc Oscillator: Yes

Figure 16-9. Low Power Mode Behavior
16.7.6.3
32072G–11/2011
SDRAMC_A[12:0]
SDCKE
D[15:0]
(input)
SDCS
SDCK
RAS
CAS
Deep power-down mode
This mode is selected by writing the value three to the LPR.LPCB field. When this mode is acti-
vated, all internal voltage generators inside the SDRAM are stopped and all data is lost.
When this mode is enabled, the user must not access to the SDRAM until a new initialization
sequence is done (See
This is described in
Row n
T
RCD
= 3
Col a
Figure 16-10 on page
Section
CAS = 2
Col b
Dna
16.7.1).
Col c
Dnb
Col d
230.
Dnc
Col e
Dnd
Col f
Dne
Dnf
Low Power Mode
229