msm548263 Oki Semiconductor, msm548263 Datasheet - Page 21

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

¡ Semiconductor
Hidden Refresh Cycle
Note:
Address
DQ1 - 8
RAS
TRG
CAS
DSF
WE
    




 
     
The type of CBR operations are determined by the logic states of "A", "B" and "C".
t
t
t
t
ASR
CRP
FSR
THS
Row
t
THH
t
t
RAH
RFH
t
Open
RAD
t
t
RCD
AR
t
FHR
t
t
t
 

RCS
ASC
t
FSC
RAS
t
RAC
Column
t
RC
t
t
RAL
CFH
t
CAH
t
RSH
t
AA
t
CAC
t
RRH
t
OEA
t
RP
t
t
t
WSR
ASR
FSR



  
A
B
C
t
t
t
RWH
RAH
RFH
Valid Data
t
t
CHR
RAS
MSM548263
t
"H" or "L"
OEZ
t
OFF
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