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參數資料
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內存
文件頁數: 36/40頁
文件大小: 462K
代理商: W946432AD
W946432AD
36
Figure29:WRITE – WITHOUT AUTO PRECHARGE
t
CK
t
CH
t
CL
CK
CK
CKE
NOP
NOP
t
IS
t
IH
COMMAND
t
IS
t
IH
t
IS
t
IH
A9,A10
Bank x
t
IS
IH
BA0,BA1
t
IS
t
IH
DIS AP
Col n
WRITE
ALL BANKS
ONE BANK
*Bank x
RA
BA
RA
RA
NOP
PRE
NOP
NOP
NOP
NOP
ACT
A8
A0-A7
t
IH
t
DQSS
t
DQSH
t
DSH
t
DSH
t
WPST
t
WR
t
RP
t
WPRES
WPRE
t
DQSL
t
DQSS
t
DQSH
t
DSS
t
DSS
t
WPST
t
WPRES
WPRE
t
DQSL
DQS
DQ
DM
DQS
DQ
DM
WRITE - WITHOUT AUTO PRECHARGE
DON'T CARE
DI
n
DI
n
t
DQSS=min
t
DQSS=max
DI n = Data IN from column n
Burst Length = 4
DIS AP = Disable Autoprecharge
* = "Don't Care", if A8 is HIGH at this point
PRE = PRECHARGE, ACT = ACTIVE, RA = Row Address, BA = Bank Address
NOP commands are shown for ease of illustration; other commands may be valid at these times
相關PDF資料
PDF描述
W963A6BBN 512K WORD X 16 BIT LOW POWER PSEUDO SRAM
W963A6BBN70 512K WORD X 16 BIT LOW POWER PSEUDO SRAM
W963A6BBN70E 512K WORD X 16 BIT LOW POWER PSEUDO SRAM
W963A6BBN70I 512K WORD X 16 BIT LOW POWER PSEUDO SRAM
W963A6BBN80 512K WORD X 16 BIT LOW POWER PSEUDO SRAM
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