r4f2456 Renesas Electronics Corporation., r4f2456 Datasheet - Page 1320

• Manufacturer Part Number: r4f2456
• Description: 16-bit Single-chip Microcomputer H8s Family / H8s/2400 Series
• Manufacturer: Renesas Electronics Corporation.

Section 27 Electrical Characteristics
Rev. 1.00 Sep. 19, 2008 Page 1290 of 1342
REJ09B0467-0100
Read
Write
EDACK2, EDACK3
Note:
DACK0, DACK1
φ
A23 to A0
RAS5 to RAS2
UCAS
LCAS
OE, RD
HWR
D15 to D0
OE, RD
HWR
D15 to D0
AS
DACK and EDACK timing: when DDS = 0 and EDDS = 0
RAS timing: when RAST = 0
Figure 27.17 DRAM Access Timing: Two-State Burst Access
Tp
Tr
Tc1
t
t
DACD1
EDACD1
Tc2
t
t
RCH
RCS1
t
t
Tc1
DACD2
EDACD2
t
CPW1
t
AC3
Tc2