Ac Characteristics (Hd64F3644, Hd64F3643, Hd64F3642A) - Renesas H8 Series Hardware Manual

13.4.3

AC Characteristics (HD64F3644, HD64F3643, HD64F3642A)

Table 13.21 lists the control signal timing, and tables 13.22 and 13.23 list the serial interface
timing of the HD64F3644, HD64F3643, HD64F3642A.
Table 13.21 Control Signal Timing
V = 4.0 V to 5.5 V, V
CC
Item Symbol
System clock f
oscillation frequency
OSC clock (φ ) t
OSC
cycle time
System clock (φ) t
cycle time
Subclock oscillation f
frequency
Watch clock (φ ) t
W
cycle time
Subclock (φ ) t
SUB
cycle time
Instruction cycle
time
Oscillation t
stabilization time
(crystal resonator)
Oscillation t
stabilization time
(ceramic resonator)
Oscillation stabilization t
time
External clock high t
width
External clock low t
width
External clock rise t
time
External clock fall t
time
= 0.0 V, T = –20°C to +75°C, unless otherwise specified.
SS a
Applicable
Pins
OSC , OSC
OSC 1 2
OSC , OSC
OSC 1 2
cyc
X , X
W 1 2
X , X
W 1 2
subcyc
OSC , OSC
rc 1 2
OSC , OSC
rc 1 2
X , X
rc 1 2
OSC
CPH 1
OSC
CPL 1
CPr
CPf
Section 13 Electrical Characteristics
Values
Min Typ Max Unit

2 16 MHz

2 10
62.5 
1000 ns
100 
1000

2 128 t
OSC
 
25.6 µs
 32.768 
kHz
 
30.5 µs

2 8 t
W
 
2 t
cyc
t
subcyc
 
40 ms
 
60
 
20 ms
 
40
 
2 s
 
20 ns
 
40
 
20 ns
 
40
 
15 ns
 
15 ns
Rev. 6.00 Sep 12, 2006 page 415 of 526
Reference
Test Condition Figure
V = 3.0 V to 5.5 V
CC
*1
Figure 13.1
V = 3.0 V to 5.5 V
CC
= 3.0 V to 5.5 V * 1
V
CC
V = 3.0 V to 5.5 V
CC
V = 3.0 V to 5.5 V
CC
= 3.0 V to 5.5 V * 2
V
CC
V = 3.0 V to 5.5 V
CC
V = 3.0 V to 5.5 V
CC
V = 3.0 V to 5.5 V
CC
V = 3.0 V to 5.5 V
CC
Figure 13.1
V = 3.0 V to 5.5 V
CC
V = 3.0 V to 5.5 V
CC
V = 3.0 V to 5.5 V
CC
V = 3.0 V to 5.5 V
CC
REJ09B0326-0600