at91sam9263 ATMEL Corporation, at91sam9263 Datasheet - Page 1013
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at91sam9263
Manufacturer Part Number
at91sam9263
Description
At91 Arm Thumb Microcontrollers
Manufacturer
ATMEL Corporation
Datasheet
1.AT91SAM9263.pdf
(1065 pages)
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46.7.4.2
Table 46-26. SDRAMC Clock Signal
Table 46-27. SDRAMC Signals
Note:
6249D–ATARM–20-Dec-07
Symbol
1/(t
Symbol
SDRAMC
SDRAMC
SDRAMC
SDRAMC
SDRAMC
SDRAMC
SDRAMC
SDRAMC
SDRAMC
SDRAMC
SDRAMC
SDRAMC
SDRAMC
SDRAMC
SDRAMC
SDRAMC
SDRAMC
SDRAMC
SDRAMC
SDRAMC
SDRAMC
SDRAMC
SDRAMC
SDRAMC
SDRAMC
SDRAMC
SDRAMC
SDRAMC
CPSDCK
1. The derating factor is not to be applied to t
)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
External Bus Interface 1 Timings
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
Bank Change before SDCK Rising Edge
Bank Change after SDCK Rising Edge
CAS Low before SDCK Rising Edge
CAS High after SDCK Rising Edge
DQM Change before SDCK Rising Edge
DQM Change after SDCK Rising Edge
D0-D15 in Setup before SDCK Rising Edge
D0-D15 in Hold after SDCK Rising Edge
D16-D31 in Setup before SDCK Rising Edge
D16-D31 in Hold after SDCK Rising Edge
SDWE Low before SDCK Rising Edge
SDWE High after SDCK Rising Edge
D0-D15 Out Valid before SDCK Rising Edge
D0-D15 Out Valid after SDCK Rising Edge
D16-D31 Out Valid before SDCK Rising Edge
D16-D31 Out Valid after SDCK Rising Edge
Parameter
SDRAM Controller Clock Frequency
VDDCORE supply
VDDIOM supply
CLMCK
or t
CHMCK
1.08V
-0.2
3.6
4.3
3.8
3.7
3.7
4.2
4.7
3.0
4.0
3.7
3.2
3.8
3.4
3.8
4.7
3.0
3.3
3.8
0.7
0.6
2.1
4.2
3.6
3.2
3.1
3.9
3.4
.
1.8V
AT91SAM9263 Preliminary
1.8V Supply
100
1.2V
-0.2
3.9
4.4
4.1
3.9
4.0
4.2
4.8
3.4
4.3
3.8
3.6
3.9
3.8
3.8
4.8
3.4
3.6
3.8
0.5
0.5
1.5
3.4
3.7
3.7
3.4
4.2
3.6
Min
Max
1.08V
-0.1
2.3
5.1
2.2
4.8
2.0
5.0
3.1
4.1
2.7
4.8
1.7
4.3
1.8
4.3
3.1
4.1
1.7
4.3
0.8
0.7
2.2
2.5
4.7
1.7
4.1
2.4
4.5
3.3V Supply
3.3V
100
1.2V
-0.1
2.8
5.1
2.6
4.8
2.5
5.0
3.4
4.3
3.1
4.7
2.4
4.3
2.4
4.3
3.4
4.3
2.2
4.3
0.5
0.6
1.6
2.9
4.7
2.3
4.1
2.8
4.5
Units
MHz
Units
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
1013
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