r4f2456 Renesas Electronics Corporation., r4f2456 Datasheet - Page 1280

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

Section 27 Electrical Characteristics
Table 27.8 Bus Timing (2)
Conditions: V
Rev. 1.00 Sep. 19, 2008 Page 1250 of 1342
REJ09B0467-0100
Item
WR delay time 1
WR delay time 2
WR pulse width 1
WR pulse width 2
Write data delay time
Write data setup time 1
Write data setup time 2
Write data setup time 3
Write data hold time 1
Write data hold time 2
Write data hold time 3
Write command setup time 1
Write command setup time 2
Write command hold time 1
Write command hold time 2
Read command setup time 1
Read command setup time 2
Read command hold time
CAS delay time 1
CAS delay time 2
CAS setup time 1
CAS setup time 2
CAS pulse width 1
CAS pulse width 2
CAS precharge time 1
CAS precharge time 2
0 V, φ = 8 MHz to 33 MHz, T
T
a
CC
= −40°C to +85°C (wide-range specifications)
= 3.0 V to 3.6 V, AV
Symbol
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
WRD1
WRD2
WSW1
WSW2
WDD
WDS1
WDS2
WDS3
WDH1
WDH2
WDH3
WCS1
WCS2
WCH1
WCH2
RCS1
RCS2
RCH
CASD1
CASD2
CSR1
CSR2
CASW1
CASW2
CPW1
CPW2
CC
= 3.0 V to 3.6 V, V
a
= −20°C to +75°C (regular specifications),
Min.


1.0 × t
1.5 × t

0.5 × t
1.0 × t
1.5 × t
0.5 × t
1.0 × t
1.5 × t
0.5 × t
1.0 × t
0.5 × t
1.0 × t
1.5 × t
2.0 × t
0.5 × t


0.5 × t
1.5 × t
1.0 × t
1.5 × t
1.0 × t
1.5 × t
cyc
cyc
cyc
cyc
cyc
cyc
cyc
cyc
cyc
cyc
cyc
cyc
cyc
cyc
cyc
cyc
cyc
cyc
cyc
cyc
cyc
−13
−13
−15
−15
−15
−13
−13
−13
−10
−10
−10
−10
−10
−10
−10
−10
−10
−20
−20
−20
−20
Max.
15
15


23













15
15






ref
= 3.0 V to AV
Unit
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
CC
, V
SS
Test Conditions
Figures 27.8 to
27.23,
Figure 27.34, and
figure 27.35
= AV
SS
=