參數(shù)資料
型號: EDX5116ABSE-2A-E
廠商: ELPIDA MEMORY INC
元件分類: DRAM
英文描述: 512M bits XDR DRAM (32M words ?16 bits)
中文描述: 32M X 16 RAMBUS, PBGA104
封裝: LEAD FREE, FBGA-104
文件頁數(shù): 45/78頁
文件大?。?/td> 3611K
代理商: EDX5116ABSE-2A-E
Preliminary Data Sheet E0643E30 (Ver. 3.0)
45
EDX5116ABSE
Figure 36
Power S tate Management
Transaction a: Last precharge command
Transaction b: PDN
t
CYCLE
Powerdown Entry
CMD
a
t
CMD-PDN
Transaction 1: REFA
Transaction 2: REFA
Transaction n-1: REFA
t
CYCLE
Powerdown Exit
S
0
S
2
S
4
S
6
S
8
S
10
S
12
S
14
S
18
S
20
S
22
S
24
S
26
S
28
S
30
S
32
S
34
S
16
SCMD
Power-up transaction
t
CYC,SCK
b
PDN
t
PDN-ENTRY
Powerdown State...
t
CYCLE
1
REFA
REFP
‘1’ ‘1’ ‘0’ ‘0’
Start
t
PDN-EXIT
t
PDN-CMD
2
REFA
Transaction n: REFI
REFP
t
PDN-CFM
No signal
No signal
t
CFM-PDN
....Powerdown State
RST
SCK
CMD
DQ15..0
DQN15..0
CFM
CFMN
RQ11..0
DQ15..0
DQN15..0
CFM
CFMN
RQ11..0
DQ15..0
DQN15..0
CFM
CFMN
RQ11..0
2
4 3
5
0
1
‘0’
‘0’
2’h0,SID[5:0]
2
4 3
5
0
1
6
7
SWD[7:0]
‘0’
‘0’
SDI
(input)
SDO
(output)
2
4 3
5
0
1
6
7
SADR[7:0]
REFP
REFI
The final REFA/REFI command increments the REFr register
t
PDN-CMD
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