Datasheet

R01DS0098EJ0180 Rev.1.80 Page 159 of 208
May 13, 2014
RX63N Group, RX631 Group 5. Electrical Characteristics
Figure 5.27 SDRAM Space Multiple Write Bus Timing
ACT
WR
PRAWR WR WR
SDCLK pin
A18 to A0
AP*
1
SDCS#
RAS#
CAS#
WE#
CKE
DQMn
D31 to D0
t
AD2
t
AD2
t
AD2
t
AD2
t
AD2
t
AD2
t
AD2
t
AD2
t
AD2
t
AD2
t
AD2
t
AD2
t
AD2
t
CSD2
t
CSD2
t
CSD2
t
CSD2
t
CSD2
t
RASD
t
RASD
t
RASD
t
RASD
t
RASD
t
CASD
t
CASD
t
CASD
t
WED
t
WED
(High)
t
DQMD
t
DQMD
t
WDD2
t
WDH2
t
WDD2
t
WDH2
C1 C2 C3
Row
Address
C0
(Column Address)
PRA
command
Note 1: Address pins for output of the precharge-setting command (Precharge-sel)
for SDRAM.