Datasheet

R01DS0052EJ0140 Rev.1.40 Page 111 of 150
2014.07.16
RX62N Group, RX621 Group 5. Electrical Characteristics
Figure 5.21 SDRAM Space Self-Refresh Bus Timing
A18 to A0
(RFS)
SDCLK
SDCS#
AP*
1
DQMn
D31 to D0
RAS#
CAS#
WE#
CKE
(Hi-Z)
t
CKED
(High)
t
CASD
t
CASD
t
CASD
t
RASD
t
RASD
t
RASD
t
CSD2
t
CSD2
t
CSD2
t
AD2
t
AD2
(RFA)Ts (RFX) (RFA)
t
AD2
t
AD2
t
CSD2
t
CSD2
t
CSD2
t
CSD2
t
RASD
t
RASD
t
RASD
t
RASD
t
CASD
t
CASD
t
CASD
t
CASD
t
CKED
Note 1: Address pins for output of the precharge-setting command (Precharge-sel) for SDRAM.
SDRAM command
t
DQMD
t
DQMD