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參數(shù)資料
型號: W946432AD
廠商: WINBOND ELECTRONICS CORP
英文描述: 512K X 4 BANKS X 32 BITS DDR SDRAM
中文描述: 為512k × 4銀行× 32位DDR內(nèi)存
文件頁數(shù): 34/40頁
文件大小: 462K
代理商: W946432AD
W946432AD
34
Figure27:READ - WITH AUTO PRECHARGE
READ-WITH AUTO PRECHARGE
t
CK
t
CH
t
CL
CK
CK
CKE
NOP
t
IS
t
IH
COMMAND
NOP
t
IS
t
IH
t
IS
t
IH
A9,A10
Bank x
t
IS
t
IH
BA0,BA1
EN AP
Col n
READ
DM
CL = 3
t
RP
NOP
DQS
DQ
DQS
DQ
DON'T CARE
A0-A7
A8
t
RPST
t
DQSCK
min
t
RPRE
t
LZ
min
t
LZ
min
t
AC
min
n
t
HZ
max
t
RPRE
t
LZ
max
n
t
DQSCK
max
AC
t
RPST
HZ
RA
RA
NOP
NOP
NOP
NOP
NOP
ACT
RA
Bank x
t
AC
/t
DQSCK=min
t
AC
/t
DQSCK=max
DO n = Data Out from column n
Burst Length = 4
EN AP = Enable Autoprecharge
ACT = ACTIVE, RA = Row Address
NOP commands are shown for ease of illustration; other commands may be valid at these times
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