WED3DL644V
White Electronic Designs
FIG. 4 POWER UP SEQUENCE
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
CLOCK
CKE
High level is necessary
CE#
tRP
tRFC
tRFC
RAS#
CAS#
ADDR
Key
RAa
BA
A10/AP
DQ
RAa
HIGH-Z
WE#
High level is necessary
DQM
Precharge
(All Banks)
Auto Refresh
Mode Register Set
Auto Refresh
Row Active
(A-Bank)
DON'T CARE
August 2005
Rev. 6
13
White Electronic Designs Corporation • (602) 437-1520 • www.wedc.com