¡ Semiconductor
MSM514900C/CSL
CAS before RAS Refresh Cycle
RAS VIH –
VIL –
CAS
VIH
VIL
–
–
DQ VOH –
VOL –
tRP
tRPC
tCP tCSR
tOFF
,,tRC
tRAS
tCHR
tRP
tRPC
Open
Note: WE, OE, Address = "H" or "L"
"H" or "L"
,,, Hidden Refresh Read Cycle
tRC
tRC
tRAS
tRP
tRAS
tRP
RAS VIH –
tAR
VIL –
tCRP
tRCD
tRSH
tCHR
CAS
VIH
VIL
–
–
tRAD
tASC
tASR
tRAH
tCAH
Address VIH –
VIL –
Row
Column
tRCS
tRAL
tRRH
WE
VIH
VIL
–
–
tAA
tROH
tOEA
OE
VIH
VIL
–
–
tCAC
tRAC tCLZ
tOFF
tOEZ
DQ VOH –
VOL –
Valid Data-out
"H" or "L"
13/16