Rev.1 Page 24
RAS-Only Refresh Cycle
RAS
ADDRESS
t
RC
t
CRP
t
ASR
t
RAH
t
T
t
RPC
ROW
t
OFF
CAS
t
RAS
t
RP
OPEN
t
CRP
DQ1~DQ4
RAS
t
CSR
t
WSR
t
RP
t
T
t
RPC
t
OFF
CAS
t
RAS
t
RP
OPEN
t
CRP
DQ1~DQ4
t
RPC
t
CHR
t
RAS
t
RP
t
RC t
RC
t
CHR
t
CSR
t
WHR
t
WSR
t
WHR
WE
CAS-Before-RAS Refresh Cycle