r4f2456 Renesas Electronics Corporation., r4f2456 Datasheet - Page 1295

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

27.2.3
The following shows the timings of the clock, control signals, bus, DMAC, and on-chip peripheral
functions. For the AC characteristic test conditions, see figure 27.2.
(1)
Table 27.20 Clock Timing
Conditions: V
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 Timing
AC Characteristics
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
cyc
CH
CL
Cr
Cf
OSC1
OSC2
DEXT
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
Rev. 1.00 Sep. 19, 2008 Page 1265 of 1342
Max.
125


5
5



ref
= 3.0 V to AV
Section 27 Electrical Characteristics
Unit
ns
ns
ns
ns
ns
ms
ms
ms
CC
, V
Test Conditions
Figure 27.3
Figure 27.3
Figure 27.5(1)
Figure 27.5(2)
Figure 27.5(1)
SS
REJ09B0467-0100
= AV
SS
=