r4f2426 Renesas Electronics Corporation., r4f2426 Datasheet - Page 1208

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

Section 26 Electrical Characteristics
26.1.3
The following shows the timings of the clock, control signals, bus, DMAC, EXDMAC, and on-
chip peripheral functions. For the AC characteristic test conditions, see figure 26.1.
(1)
Table 26.5 Clock Timing
Conditions: V
Note:
Rev. 1.00 Sep. 19, 2008 Page 1180 of 1270
REJ09B0466-0100
Item
Clock cycle time
Clock pulse high width
Clock pulse low width
Clock rising time
Clock falling time
Reset oscillation settling time
(crystal)
Software standby oscillation
settling time (crystal)
External clock output delay
settling time
Clock phase difference*
Clock pulse high width
(SDRAMφ)*
Clock pulse low width
(SDRAMφ)*
Clock rising time (SDRAMφ)*
Clock falling time (SDRAMφ)*
Clock Timing
*
AC Characteristics
Supported only by the H8S/2426R Group.
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
cyc
CH
CL
Cr
Cf
OSC1
OSC2
DEXT
cdif
SDCH
SDCL
sdcr
sdcf
CC
= 3.0 V to 3.6 V, V
a
= −20°C to +75°C (regular specifications),
Min.
30.3
10
10


15
5
15
1/4 × t
9
9


cyc
−3
Max.
125


5
5



1/4 × t


5
5
ref
= 3.0 V to AV
cyc
+3
Unit
ns
ns
ns
ns
ns
ms
ms
ms
ns
ns
ns
ns
ns
CC
, V
Test Conditions
Figure 26.3
Figure 26.3
Figure 26.5(1)
Figure 26.5(2)
Figure 26.5(1)
Figure 26.4
Figure 26.4
Figure 26.4
Figure 26.4
Figure 26.4
SS
= AV
SS
=