msm548263 Oki Semiconductor, msm548263 Datasheet - Page 26

• Manufacturer Part Number: msm548263
• Description: Msm548263256k X 8 Multiport Dram
• Manufacturer: Oki Semiconductor

¡ Semiconductor
Masked Split Write Transfer
Note 1: SE = "L"
Note 2: QSF = "L"-- Lower SAM (0 - 255) is active
Note 3: Si is the SAM start address in before SWT
Note 4: STOP i and STOP j are programmable stop addresses
SDQ1 - 8
Address
DQ1 - 8
RAS
TRG
CAS
DSF
QSF
WE
SC
  








 



QSF = "H"-- Upper SAM (256 - 511) is active
Data In
Note 2
STOP i
t
t
t
t
TLS
STS
t
Mask Data
t
ASR
MS
FSR
WSR
t
SQD
Row
t
t
t
RFH
RWH
t
t
TLH
MH
RAH
t
SDS
t
Data In
RAD
t
t
RCD
AR
t
SDH
S i
t
 







ASC
SAM Start Sj
t
t
RTH
t
SCP
CSH
t
t
SDS
RAS
t
Data In
SCC
t
CAH
t
ATH
t
SDH
t
t
t
SC
CAS
CTH
t
Open
RSH
t
t
RC
RAL
Note 2
Data In
STOP
j - 1
Data In
t
RP
STOP j
t
SQD
MSM548263
Data In
"H" or "L"
Note 2
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S j