HD6412320 RENESAS [Renesas Technology Corp], HD6412320 Datasheet - Page 947

• Manufacturer Part Number: HD6412320
• Description: Renesas 16-Bit Single-Chip Microcomputer H8S Family H8S-2300 Series
• Manufacturer: RENESAS [Renesas Technology Corp]

Table 20.4 External Clock Input Conditions
External clock input
low pulse width
External clock input
high pulse width
External clock rise time t
External clock fall time
Clock high pulse width
level
Item
Clock low pulse width
level
EXTAL
EXTAL
XTAL
XTAL
t
t
t
t
Symbol
t
EXL
EXH
EXr
EXf
CH
CL
Figure 20.6 External Clock Input Timing
(b) Complementary clock input at XTAL pin
V
to 3.6 V
20
20
—
—
0.4
80
0.4
80
Min
CC
= 2.7 V
(a) XTAL pin left open
—
—
0.6
—
Max
5
5
0.6
—
Open
10
10
—
—
0.4
80
V
to 3.6 V
Min
0.4
80
CC
Rev.6.00 Sep. 27, 2007 Page 917 of 1268
= 3.0 V
—
—
5
5
0.6
—
Max
0.6
—
External clock input
External clock input
Section 20 Clock Pulse Generator
ns
ns
ns
ns
t
ns
Unit
t
ns
cyc
cyc
Figure 20.6
φ ≥ 5 MHz
φ < 5 MHz
Test
Conditions
φ ≥ 5 MHz
φ < 5 MHz
REJ09B0220-0600
Figure 22-2