參數資料
型號: EDX5116ABSE
廠商: Elpida Memory, Inc.
英文描述: 512M bits XDR DRAM (32M words ?16 bits)
中文描述: 512M比特XDR DRAM內存(32M的話?16位)
文件頁數: 18/78頁
文件大小: 3611K
代理商: EDX5116ABSE
Preliminary Data Sheet E0643E30 (Ver. 3.0)
18
EDX5116ABSE
Figure 6
ACT-, RD-, WR-, PRE-to-WR Packet Interac tions
T
0
T
1
T
2
T
3
CFMN
RQ11..0
DQ15..0
DQN15..0
T
4
T
5
T
6
T
7
T
9
T
10
T
11
T
12
T
13
T
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T
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T
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T
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T
20
T
21
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22
T
23
T
8
T
0
T
1
T
2
T
3
CFMN
RQ11..0
DQ15..0
DQN15..0
T
4
T
5
T
6
T
7
T
9
T
10
T
11
T
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T
21
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23
T
8
a: ROWA Packet with ACT,Ba,Ra
b: COL Packet with WR,Bb,Cb
T
0
T
1
T
2
T
3
CFMN
RQ11..0
DQ15..0
DQN15..0
T
4
T
5
T
6
T
7
T
9
T
10
T
11
T
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23
T
8
T
0
T
1
T
2
T
3
CFMN
RQ11..0
DQ15..0
DQN15..0
T
4
T
5
T
6
T
7
T
9
T
10
T
11
T
12
T
13
T
14
T
15
T
16
T
17
T
18
T
19
T
20
T
21
T
22
T
23
T
8
AWd Case (activate-write different bank)
AWs Case (activate-write same bank)
a: ROWA Packet with ACT,Ba,Ra
b: COL Packet with WR,Bb,Cb
RWd Case (read-write-different bank)
a: COL Packet with RD,Ba,Ca
b: COL Packet with WR,Bb,Cb
RWs Case (read-write-same bank)
a: COL Packet with RD,Ba,Ca
b: COL Packet with WR,Bb,Cb
WWd Case (write-write different bank)
a: COL Packet with WR,Ba,Ca
b: COL Packet with WR,Bb,Cb
WWs Case (write-write same bank)
a: COP Packet with WR,Ba,Ca
b: COL Packet with WR,Bb,Cb
PWd Case (precharge-write different bank)
a: ROWP Packet with PRR,Ba
b: COL Packet with WR,Bb,Cb
PWs Case (precharge-write same bank)
a: ROWP Packet with PRE,Ba
b: COP Packet with WR,Bb,Cb
Ba Bb
/
Ba = Bb
Ba Bb
/
Ba = Bb
Ba Bb
/
Ba = Bb
Ba Bb
/
Ba = Bb
No limit
a
PRE
b
WR
No limit
a
ACT
b
WR
t
RP
+t
RCD-W
t
RP
a
PRE
b
WR
B
ACT
t
RCD-W
a
ACT
b
WR
t
RW
t
CC
b
WR
a
WR
t
CC
b
WR
a
WR
t
CAC
D(b)
Q(a)
t
CWD
t
CYCLE
a
RD
b
WR
t
RW
t
CAC
D(b)
Q(a)
t
CWD
t
CYCLE
a
RD
b
WR
CFM
CFM
CFM
CFM
t
CC
t
CC
t
RCD-W
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