參數(shù)資料
型號: HYB25D128400AT-7
英文描述: ?128Mb (32Mx4) DDR266A (2-3-3)?
中文描述: ?128Mb的(32Mx4)DDR266A(2-3-3)?
文件頁數(shù): 49/76頁
文件大小: 1218K
代理商: HYB25D128400AT-7
2002-05-06
Page 4
9
of 76
HYB25D128400/800/160AT(L)
128-Mbit Double Data Rate SDRAM
Simplified State Diagram
Self
Refresh
Auto
Refresh
Idle
MRS
E
MRS
Row
Active
Precharge
PR
E
ALL
Down
W
rite
A
Power
On
ACT
Read A
Read
R
E
FS
R
E
FS
X
R
E
FA
CK
E
L
MRS
CK
EH
CK
EH
CK
E
L
W
rite
Power
Applied
Automatic Sequence
Command Sequence
Read A
W
rite A
Read
PR
E
PR
E
PR
E
PR
E
Active
Down
Read
A
Read
A
W
rite A
Burst Stop
PPower
Precharge
PR
E
ALL
Read
W
rite
PR
E
ALL = Precharge All Banks
MRS = Mode Register Set
E
MRS =
E
xtended Mode Register Set
R
E
FS =
E
nter Self Refresh
R
E
FS
X
=
E
xit Self Refresh
R
E
FA = Auto Refresh
CK
E
L =
E
nter Power Down
CK
EH
=
E
xit Power Down
ACT = Active
W
rite A =
W
rite with Autoprecharge
Read A = Read with Autoprecharge
PR
E
= Precharge
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