SH7032 Datasheet, PDF (535/687 Pages) Renesas Technology Corp – 32-Bit RISC Microcomputer

Section 20 Electrical Characteristics
T_p
CK
A21–A0
RAS
CAS
RD(Read)
WRH, WRL,
WR(Read)
AD15–AD0
DPH, DPL
(Read)
DACK0
DACK1
(Read)
RD(Write)
WRH, WRL,
WR(Write)
AD15–AD0
(Write)
DPH, DPL
(Write)
DACK0
DACK1
(Write)
WAIT
T_r
T_c1
T_w
T_c2
Row
Column
t_RDD
t_RSD
t_CAC2^*1
t_ACC2^*2
t_RAC2^*3
t_WTS t_WTH t_WTS t_WTH
Notes: 1. For t_CAC2, use t_cyc × (n + 1) – 35 instead of t_cyc × (n + 1) – t_CASD2 – t_RDS.
2. For t_ACC2, use t_cyc × (n + 2) – 44 instead of t_cyc × (n + 2) – t_AD – t_RDS.
3. For t_RAC2, use t_cyc × (n + 2.5) – 35 instead of t_cyc × (n + 2.5) – t_RASD1 – t_RDS.
Figure 20.28 DRAM Bus Cycle: (Long-Pitch, High-Speed Page Mode + Wait State)
Rev. 7.00 Jan 31, 2006 page 509 of 658
REJ09B0272-0700