AT32UC3A4256 Atmel Corporation, AT32UC3A4256 Datasheet - Page 973
AT32UC3A4256
Manufacturer Part Number
AT32UC3A4256
Description
Manufacturer
Atmel Corporation
Datasheets
1.AT32UC3A0128.pdf
(377 pages)
2.AT32UC3A0128.pdf
(33 pages)
3.AT32UC3A0128.pdf
(159 pages)
4.AT32UC3A3128.pdf
(91 pages)
5.AT32UC3A3128.pdf
(1012 pages)
Specifications of AT32UC3A4256
Flash (kbytes)
256 Kbytes
Pin Count
100
Max. Operating Frequency
66 MHz
Cpu
32-bit AVR
Hardware Qtouch Acquisition
No
Usb Transceiver
1
Usb Speed
Hi-Speed
Usb Interface
Device + OTG
Spi
6
Twi (i2c)
2
Uart
4
Ssc
1
Sd / Emmc
2
Graphic Lcd
No
Video Decoder
No
Camera Interface
No
Adc Channels
8
Adc Resolution (bits)
10
Resistive Touch Screen
No
Temp. Sensor
No
Crypto Engine
No
Sram (kbytes)
128
Self Program Memory
YES
Dram Memory
No
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
6
Input Capture Channels
6
32khz Rtc
Yes
Calibrated Rc Oscillator
Yes
Available stocks
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Part Number
Manufacturer
Quantity
Price
Part Number:
AT32UC3A4256S-C1UR
Manufacturer:
ATMEL/爱特梅尔
Quantity:
20 000
Company:
Part Number:
AT32UC3A4256S-U
Manufacturer:
ST
Quantity:
79
Part Number:
AT32UC3A4256S-U
Manufacturer:
ATMEL/爱特梅尔
Quantity:
20 000
- AT32UC3A0128 PDF datasheet
- AT32UC3A0128 PDF datasheet #2
- AT32UC3A0128 PDF datasheet #3
- AT32UC3A3128 PDF datasheet #4
- AT32UC3A3128 PDF datasheet #5
- Current page: 973 of 1012
- Download datasheet (16Mb)
Figure 35-8. SMC Signals for NRD and NRW Controlled Accesses.
35.11.2
Table 35-34. SDRAM Clock Signal.
Note:
Table 35-35. SDRAM Clock Signal
32072G–11/2011
A0/A1/NBS[3:0]
Symbol
1/(t
Symbol
SDRAMC
SDRAMC
SDRAMC
SDRAMC
SDRAMC
SDRAMC
SDRAMC
SDRAMC
SDRAMC
SDRAMC
SDRAMC
SDRAMC
CPSDCK
D0 - D15
A2-A25
NWE
NRD
NCS
1. The maximum frequency of the SDRAMC interface is the same as the max frequency for the HSB.
)
1
2
3
4
5
6
7
8
9
10
11
12
SDRAM Signals
Parameter
SDRAM Controller Clock Frequency
Parameter
SDCKE High before SDCK Rising Edge
SDCKE Low after SDCK Rising Edge
SDCKE Low before SDCK Rising Edge
SDCKE High after SDCK Rising Edge
SDCS Low before SDCK Rising Edge
SDCS High after SDCK Rising Edge
RAS Low before SDCK Rising Edge
RAS High after SDCK Rising Edge
SDA10 Change before SDCK Rising Edge
SDA10 Change after SDCK Rising Edge
Address Change before SDCK Rising Edge
Address Change after SDCK Rising Edge
These timings are given for 10 pF load on SDCK and 40 pF on other signals.
SMC9
SMC19
SMC7
SMC20
SMC3
SMC4
SMC5
SMC6
SMC8
SMC45
SMC43
SMC42
SMC37
SMC38
SMC39
SMC40
SMC41
SMC44
Conditions
Conditions
SMC9
SMC1
SMC2
SMC8
SMC7
SMC3
SMC4
SMC5
SMC6
Min.
Min.
6.2
7.4
3.2
2.9
7.5
1.6
7.2
2.3
7.6
1.9
2.2
7
SMC33
1/(t
SMC23
Max.
Max.
cpcpu
(1)
SMC24
SMC32
)
SMC31
SMC25
SMC26
SMC29
SMC30
MHz
Unit
Unit
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
973
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