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17.2.2 AC Characteristics
The AC characteristics of the H8/330 chip are listed in three tables. Bus timing parameters are
given in table 17-4, control signal timing parameters in table 17-5, and timing parameters of the on-
chip supporting modules in table 17-6.
Table 17-4. Bus Timing
Conditions: V
CC
= 5.0V ±10%, = 0.5 to 10MHz, V
SS
= 0V,
Ta = –20 to 75C (regular specifications), Ta = –40 to 85C (wide-range specifications)
Measurement
Item
Clock cycle time
Clock pulse width Low
Clock pulse width High
Clock rise time
Clock fall time
Address delay time
Address hold time
Address strobe delay time t
ASD
Write strobe delay time
Strobe delay time
Write strobe pulse width
Address setup time 1
Address setup time 2
Read data setup time
Read data hold time
Write data delay time
Read data access time
Write data setup time
Write data hold time
Wait setup time
Wait hold time
E clock delay time
E clock rise time
E clock fall time
Read data hold time
(for E clock)
Write data hold time
(for E clock)
Measurement 6MHz
Symbol conditions
t
cyc
Fig. 17-4
t
CL
Fig. 17-4
t
CH
Fig. 17-4
t
Cr
Fig. 17-4
t
Cf
Fig. 17-4
t
AD
Fig. 17-4
t
AH
Fig. 17-4
Fig. 17-4
t
WSD
Fig. 17-4
t
SD
Fig. 17-4
t
WSW
Fig. 17-4
t
AS1
Fig. 17-4
t
AS2
Fig. 17-4
t
RDS
Fig. 17-4
t
RDH
Fig. 17-4
t
WDD
Fig. 17-4
t
ACC
Fig. 17-4
t
WDS
Fig. 17-4
t
WDH
Fig. 17-4
t
WTS
Fig. 17-5
t
WTH
Fig. 17-5
t
ED
Fig. 17-6
t
Er
Fig. 17-6
t
Ef
Fig. 17-6
t
RDHE
Fig. 17-6
8MHz
min
125
45
45
–
–
–
25
–
–
–
150
20
80
55
0
–
–
15
25
40
10
–
–
–
0
10MHz
min
100
35
35
–
–
–
20
–
–
–
120
15
65
50
0
–
–
10
20
40
10
–
–
–
0
min
166.7 2000
65
65
–
–
–
30
–
–
–
200
25
105
70
0
–
–
30
30
40
10
–
–
–
0
max
max
2000
–
–
15
15
60
–
60
60
60
–
–
–
–
–
60
190
–
–
–
–
20
15
15
–
max Unit
2000 ns
–
–
15
15
55
–
50
50
50
–
–
–
–
–
60
160
–
–
–
–
20
15
15
–
–
–
15
15
70
–
70
70
70
–
–
–
–
–
70
270
–
–
–
–
20
15
15
–
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
t
WDHE
Fig. 17-6
50
–
40
–
30
–
ns
273