E62655RUSB Renesas Electronics America, E62655RUSB Datasheet - Page 770
E62655RUSB
Manufacturer Part Number
E62655RUSB
Description
EMULATOR BASE H8S/2655R W/USB
Manufacturer
Renesas Electronics America
Type
Microcontrollerr
Datasheet
1.E62655RUSB.pdf
(1093 pages)
Specifications of E62655RUSB
Contents
E6000 Emulator Unit and 4 Logic Probes
For Use With/related Products
H8S/2655R
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
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Section 20 Clock Pulse Generator
External Clock
The external clock signal should have the same frequency as the system clock ( ).
Table 20.4 and figure 20.6 show the input conditions for the external clock.
Table 20.4 External Clock Input Conditions
Item
External clock input
low pulse width
External clock input
high pulse width
External clock rise time t
External clock fall time
Clock low pulse width
level
Clock high pulse width
level
Rev. 5.00 Sep 14, 2006 page 740 of 1060
REJ09B0331-0500
EXTAL
t
EXr
Symbol
t
t
t
t
t
EXL
EXH
EXr
EXf
CL
CH
Figure 20.6 External Clock Input Timing
V
to 5.5 V
Min
40
40
—
—
0.4
80
0.4
80
CC
t
= 2.7 V
EXH
Max
—
—
10
10
0.6
—
0.6
—
V
±10%
Min
20
20
—
—
0.4
80
0.4
80
CC
= 5.0 V
t
Max
—
—
5
5
0.6
—
0.6
—
EXf
t
EXL
Unit
ns
ns
ns
ns
t
ns
t
ns
cyc
cyc
Test
Conditions
Figure 20.6
< 5 MHz
< 5 MHz
5 MHz
5 MHz
V
CC
0.5
Figure 22.4
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