AT32UC3C2512C Atmel Corporation, AT32UC3C2512C Datasheet - Page 356
AT32UC3C2512C
Manufacturer Part Number
AT32UC3C2512C
Description
Manufacturer
Atmel Corporation
Datasheets
1.AT32UC3A0128.pdf
(377 pages)
2.AT32UC3A0128.pdf
(159 pages)
3.AT32UC3C0128C.pdf
(1313 pages)
4.AT32UC3C0128C.pdf
(108 pages)
Specifications of AT32UC3C2512C
Flash (kbytes)
512 Kbytes
Pin Count
64
Max. Operating Frequency
66 MHz
Cpu
32-bit AVR
# Of Touch Channels
32
Hardware Qtouch Acquisition
No
Max I/o Pins
45
Ext Interrupts
64
Usb Transceiver
1
Quadrature Decoder Channels
1
Usb Speed
Full Speed
Usb Interface
Device + OTG
Spi
5
Twi (i2c)
2
Uart
4
Can
2
Lin
4
Ssc
1
Ethernet
1
Graphic Lcd
No
Video Decoder
No
Camera Interface
No
Adc Channels
11
Adc Resolution (bits)
12
Adc Speed (ksps)
2000
Analog Comparators
2
Resistive Touch Screen
No
Dac Channels
2
Dac Resolution (bits)
12
Temp. Sensor
No
Crypto Engine
No
Sram (kbytes)
68
Self Program Memory
YES
Dram Memory
No
Nand Interface
No
Picopower
No
Temp. Range (deg C)
-40 to 85
I/o Supply Class
3.0 to 3.6 or 4.5 to 5.5
Operating Voltage (vcc)
3.0 to 3.6 or 4.5 to 5.5
Fpu
Yes
Mpu / Mmu
Yes / No
Timers
3
Output Compare Channels
13
Input Capture Channels
6
Pwm Channels
14
32khz Rtc
Yes
Calibrated Rc Oscillator
Yes
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- AT32UC3A0128 PDF datasheet
- AT32UC3A0128 PDF datasheet #2
- AT32UC3C0128C PDF datasheet #3
- AT32UC3C0128C PDF datasheet #4
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- Download datasheet (20Mb)
Figure 19-7. Refresh Cycle Followed by a Read Access
19.7.6
19.7.6.1
32117C–AVR-08/11
SDRAMC_A[12:0]
D[15:0]
SDWE
(input)
SDCS
SDCK
RAS
CAS
Power Management
Self refresh mode
Row n
Col c Col d
Dnb
Dnc
Three low power modes are available:
The SDRAMC activates one low power mode as soon as the SDRAM device is not selected. It is
possible to delay the entry in self refresh and power-down mode after the last access by config-
uring the Timeout field in the Low Power Register (LPR.TIMEOUT).
This mode is selected by writing the value one to the Low Power Configuration Bits field in the
SDRAMC Low Power Register (LPR.LPCB). In self refresh mode, the SDRAM device retains
data without external clocking and provides its own internal clocking, thus performing its own
auto refresh cycles. All the inputs to the SDRAM device become “don’t care” except SDCKE,
which remains low. As soon as the SDRAM device is selected, the SDRAMC provides a
sequence of commands and exits self refresh mode.
Some low power SDRAMs (e.g., mobile SDRAM) can refresh only one quarter or a half quarter
or all banks of the SDRAM array. This feature reduces the self refresh current. To configure this
feature, Temperature Compensated Self Refresh (TCSR), Partial Array Self Refresh (PASR)
• Self refresh mode: the SDRAM executes its own auto refresh cycles without control of the
• Power-down mode: auto refresh cycles are controlled by the SDRAMC. Between auto refresh
• Deep power-down mode (only available with mobile SDRAM): the SDRAM contents are lost,
Dnd
SDRAMC. Current drained by the SDRAM is very low.
cycles, the SDRAM is in power-down. Current drained in power-down mode is higher than in
self refresh mode.
but the SDRAM does not drain any current.
t
RP
= 3
t
RC
= 8
Row m
t
RCD
= 3
AT32UC3C
Col a
CAS = 2
Dma
356
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