參數(shù)資料
型號(hào): W946432AD-6
廠商: WINBOND ELECTRONICS CORP
元件分類: DRAM
英文描述: 2M X 32 DDR DRAM, 0.1 ns, PQFP100
文件頁(yè)數(shù): 28/39頁(yè)
文件大?。?/td> 577K
代理商: W946432AD-6
W946432AD
34
Figure27:BANK READ ACCESS
BANK READ ACCESS
CK
CKE
tIS tIH
tCK
tCH tCL
NOP
ACT
READ
NOP
PRE
NOP
COMMAND
tIS tIH
NOP
RA
Col n
RA
ALL BANKS
ONE BANK
Bank x
tIS tIH
BA0,BA1
Bank x
*Bank x
DQS
DQ
tRPST
tDQSCK
min
tRPRE
tLZ
min
tLZ
min
tAC
DO
n
tHZ
min
DQS
DQ
DON'T CARE
max
tRPRE
tLZ
max
DO
n
tDQSCK
max
tAC
tRPST
tHZ
max
DIS AP
tIS tIH
tRC
CL=3
tRAS
tRCD
tRP
DM
A8
A9,A10
A0-A7
ACT
RA
Bank x
tAC/tDQSCK=min
tAC/tDQSCK=max
DO n = Data Out 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
Note that tRCD MIN so that the same timing applies if Autoprecharge is enabled (in which case tRAS would be limiting)
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