WED9LC6816V
White Electronic Designs
FIG. 6 SDRAM POWER UP SEQUENCE
6
0
1
2
3
4
5
7
8
9
10
11
12
13
14
15
16
17
18
19
SDCK
SDCE#
tRFC
tRFC
tRP
SDRAS#
SDCAS#
ADDR
Key
RAa
BA0,1
[A12,A13
]
RAa
SDA10
DQ
HIGH-Z
SDWE#
BWE#
High level is necessary
Auto Refresh
Mode Register Set
Precharge
(All Banks)
Auto Refresh
Row Active
(A-Bank)
DON’T CARE
Contact factory for ordering information.
White Electronic Designs Corp. reserves the right to change products or specifications without notice.
September, 2003
Rev. 1
15
White Electronic Designs Corporation • (602) 437-1520 • www.wedc.com