PEDD514400EL-01
MSM514400E/EL
•
Fast Page Mode Read Modify Write Cycle
t
RASP
RAS
V
IH
V
IL
V
IH
V
IL
t
RAH
t
ASR
Address
V
IH
V
IL
Row
t
CSH
t
RCD
t
RAD
t
ASC
Column
t
PRWC
t
CAS
t
CP
t
CAS
t
CAH
t
CAH
t
CWL
t
ASC
t
CWL
Column
Column
t
RSH
t
CP
t
CAS
t
CAH
t
ASC
t
CRP
t
RP
CAS
t
RAL
t
RCS
WE
V
IH
V
IL
t
RAC
t
AA
t
RWD
t
CWD
t
AWD
t
WP
t
DH
t
DS
t
OEA
t
RCS
t
CPWD
t
CWD
t
AWD
t
CPA
t
AA
t
OEA
t
OED
t
OEZ
Out
t
CLZ
In
t
CLZ
t
WP
t
DS
t
D
t
AA
t
RCS
t
CPWD
t
CWD
t
AWD
t
ROH
t
CPA
t
OEA
t
OED
t
OEZ
Out
In
t
CWL
t
RWL
t
WP
t
D
t
DS
OE
V
IH
V
IL
t
CAC
V
I/OH
V
I/OL
t
CLZ
t
OED
t
OEZ
Out
In
t
CAC
t
CAC
DQ
Note: In = Valid Data-in, Out = Valid Data-out
“H” or “L”
•
RAS-only Refresh Cycle
t
RC
RAS
V
IH
V
IL
t
CRP
CAS
V
IH
V
IL
V
IH
V
IL
V
OH
V
OL
t
AS
t
RA
t
RPC
t
RAS
t
RP
Address
Row
t
OFF
Open
DQ
Note: WE, OE = “H” or “L”
“H” or “L”
12/14