參數(shù)資料
型號: EDE2108ABSE-6E-E
廠商: ELPIDA MEMORY INC
元件分類: DRAM
英文描述: 2G bits DDR2 SDRAM
中文描述: 256M X 8 DDR DRAM, 0.45 ns, PBGA68
封裝: ROHS COMPLIANT, FBGA-68
文件頁數(shù): 73/81頁
文件大?。?/td> 604K
代理商: EDE2108ABSE-6E-E
EDE2104ABSE, EDE2108ABSE
Preliminary Data Sheet E1196E10 (Ver. 1.0)
73
Read with Auto Precharge to Power-Down Entry
CK
Command
CKE
DQ
DQS
/DQS
Command
CKE
DQ
DQS
/DQS
AL + BL/2
with tRTP = 7.5ns
and tRAS min. satisfied
/CK
Start internal precharge
AL + CL
CKE should be kept high
until the end of burst operation.
CKE should be kept high
until the end of burst operation.
AL + CL
BL=4
BL=8
T0
Tx
Tx+2
Tx+3
Tx+4
Tx+5
Tx+6
T1
T2
Tx+1
Tx+7
Tx+8
Tx+9
READA
PRE
READA
out
0
out
1
out
2
out
3
out
0
out
1
out
2
out
3
out
4
out
5
out
6
out
7
AL + BL/2
with tRTP = 7.5ns
and tRAS min. satisfied
PRE
T0
Tx
Tx+2
Tx+3
Tx+4
Tx+5
Tx+6
T1
T2
Tx+1
Tx+7
Tx+8
Tx+9
Write to Power-Down Entry
CK
Command
CKE
DQS
Command
CKE
DQ
DQS
/DQS
/CK
WL
BL=4
BL=8
/DQS
tWTR
WL
tWTR
DQ
in
0
in
1
in
2
in
3
T0
Tm+1
Tm+3
Tx
Tx+1
Tx+2
Tx+3
T1
Tm
Tm+2
Tx+4
Tx+5
Tx+6
WRIT
WRIT
in
0
in
1
in
2
in
3
in
4
in
5
in
6
in
7
T0
Tm+1
Tm+3
Tm+4
Tm+5
Tx
Tx+1
T1
Tm
Tm+2
Tx+2
Tx+3
Tx+4
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