AT32UC3A0128AU Atmel Corporation, AT32UC3A0128AU Datasheet - Page 421
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AT32UC3A0128AU
Manufacturer Part Number
AT32UC3A0128AU
Description
Manufacturer
Atmel Corporation
Datasheets
1.AT32UC3A0128.pdf
(98 pages)
2.AT32UC3A0128.pdf
(826 pages)
3.AT32UC3A0128.pdf
(377 pages)
4.AT32UC3A0128.pdf
(33 pages)
5.AT32UC3A0128.pdf
(159 pages)
6.AT32UC3A0128AU.pdf
(2 pages)
Specifications of AT32UC3A0128AU
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
109
Ext Interrupts
109
Usb Transceiver
1
Usb Speed
Full Speed
Usb Interface
Device + OTG
Spi
6
Twi (i2c)
1
Uart
4
Ssc
1
Ethernet
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)
32
Self Program Memory
YES
External Bus Interface
1
Dram Memory
sdram
Nand Interface
No
Picopower
No
Temp. Range (deg C)
-40 to 85
I/o Supply Class
3.0-3.6 or (1.65-1.95+3.0-3.6)
Operating Voltage (vcc)
3.0-3.6 or (1.65-1.95+3.0-3.6)
Fpu
No
Mpu / Mmu
Yes / No
Timers
10
Output Compare Channels
16
Input Capture Channels
6
Pwm Channels
13
32khz Rtc
Yes
Calibrated Rc Oscillator
Yes
Available stocks
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Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
AT32UC3A0128AU-U
Manufacturer:
ATMEL
Quantity:
4
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Figure 28-9. Self-refresh Mode Behavior
28.7.5.2
SDRAMC_A[12:0]
SDRAMC_SRR
SDCKE
SDWE
SDCK
SDCS
Write
RAS
CAS
Low-power Mode
SRCB = 1
After initialization, as soon as PASR/DS/TCSR fields are modified and self-refresh mode is acti-
vated, the Extended Mode Register is accessed automatically and PASR/DS/TCSR bits are
updated before entry into self-refresh mode.
The SDRAM device must remain in self-refresh mode for a minimum period of t
remain in self-refresh mode for an indefinite period. This is described in
This mode is selected by programming the LPCB field to 2 in the SDRAMC Low Power Register.
Power consumption is greater than in self-refresh mode. All the input and output buffers of the
SDRAM device are deactivated except SDCKE, which remains low. In contrast to self-refresh
mode, the SDRAM device cannot remain in low-power mode longer than the refresh period (64
ms for a whole device refresh operation). As no auto-refresh operations are performed by the
SDRAM itself, the SDRAM Controller carries out the refresh operation. The exit procedure is
faster than in self-refresh mode.
This is described in
Figure
28-10.
Self Refresh Mode
to the SDRAM Controller
Access Request
T
Figure
XSR
AT32UC3A
= 3
28-9.
RAS
Row
and may
421
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