
1Semiconductor
PEDD514260ESL-01
MSM514260E/ESL
• Fast Page Mode Read Modify Write Cycle
RAS VIH
VIL
tCSH
tRCD
tCAS
tRASP
tPRWC
tCP
tCAS
tCP
tRSH
tCAS
tRP
tCRP
CAS VIH
VIL
tRAH
tASR
tRAD
tASC
tCAH
tCWL
tCAH
tASC
tCWL
tCAH
tASC
tRAL
Address VIH
VIL
Row
Column
tRCS
tPWD
tCWD
Column
tRCS tCPWD
tCWD
Column
tRCS
tCPWD
tCWD
tCWL
tRWL
WE VIH
VIL
tRAC
tAA
tAWD
tWP
tDH
tDS
tOEA
tAWD
tCPA
tWP
tDS
tAA
tD
tAA
tOEA
tAWD
tWP
tROH
tCPA
tD
tDS
tOEA
OE VIH
VIL
tCAC
tOED
tOEZ
tCAC
tOED
tOEZ
tCAC
tOED
tOEZ
DQ VI/OH
VI/OL
Out In
Out In
Out In
tCLZ
tCLZ
tCLZ
Note: Out = Valid Data-out, In = Valid Data-in
“H” or “L”
• RAS-only Refresh Cycle
RAS VIH
VIL
CAS VIH
VIL
Address VIH
VIL
DQ VOH
VOL
tCRP
tASR tRAH
Row
tOFF
tRC
tRAS
tRP
tRPC
Open
Note: WE, OE = “H” or “L”
“H” or “L”
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