參數(shù)資料
型號(hào): WED3DL644V10BC
廠商: WHITE ELECTRONIC DESIGNS CORP
元件分類: DRAM
英文描述: 4M X 64 SYNCHRONOUS DRAM, 7 ns, PBGA153
封裝: 17 X 23 MM, BGA-153
文件頁(yè)數(shù): 13/28頁(yè)
文件大小: 918K
代理商: WED3DL644V10BC
20
White Electronic Designs Corporation (602) 437-1520 www.wedc.com
White Electronic Designs
WED3DL644V
August 2005
Rev. 6
FIG. 11 CLOCK SUSPENSION & DQM OPERATION CYCLE @CAS LATENCY=2, BURST
LENGTH=4
NOTE:
1.
DQM is needed to prevent bus contention.
RAS#
CAS#
ADDR
BA
DQM
A10/AP
CKE
CLOCK
CE#
Cb
Cc
Ca
DQ
Read
Read DQM
Write
DQM
Write
DQM
Clock
Suspension
Clock
Suspension
Read
Row Active
WE#
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
Ra
Qa0
tSHZ
Qa1
Qa2
Qa3
Dc0
Dc2
DON'T CARE
Qb1
Ra
Note 1
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