r4f2426 Renesas Electronics Corporation., r4f2426 Datasheet - Page 1256

• Manufacturer Part Number: r4f2426
• Description: 16-bit Single-chip Microcomputer H8s Family / H8s/2400 Series
• Manufacturer: Renesas Electronics Corporation.

Section 26 Electrical Characteristics
Rev. 1.00 Sep. 19, 2008 Page 1228 of 1270
REJ09B0466-0100
Read
Write
Figure 26.26 Synchronous DRAM Basic Access Timing (CAS Latency 2)
φ
SDRAMφ
Address bus
Precharge-sel
RAS
CAS
WE
CKE
DQMU,
DQML
Data bus
RAS
CAS
WE
CKE
DQMU,
DQML
Data bus
t
t
t
t
CSD4
CSD4
CSD4
CSD4
t
AD2
Tp
t
t
t
DQMD
CSD4
CSD4
Tr
t
t
t
t
CSD4
CSD4
DQMD
CSD4
High
t
WDD
Tc1
t
t
t
CSD4
CSD4
DQMD
t
High
CSD4
Tw
t
t
t
CSD4
CSD4
DQMD
t
Tc2
RDS3
t
RDH3
t
WDH4