Ac Characteristics - Hitachi H8/3022 Hardware Manual

18.1.3 AC Characteristics

Bus timing parameters are listed in table 18-4. Control signal timing parameters are listed in table
18-5. Timing parameters of the on-chip supporting modules are listed in table 18-6.
Table 18-4 Bus Timing
Conditions: V
CC
ø = 2 MHz to 18 MHz, T
Item
Clock cycle time
Clock low pulse width
Clock high pulse width
Clock rise time
Clock fall time
Address delay time
Address hold time
Address strobe delay time
Write strobe delay time
Strobe delay time
Write data strobe pulse width 1
Write data strobe pulse width 2
Address setup time 1
Address setup time 2
Read data setup time
Read data hold time
514
= 3.0 V to 3.6 V, AV
Symbol
t
cyc
t
CL
t
CH
t
Cr
t
Cf
t
AD
t
AH
t
ASD
t
WSD
t
SD
t
*
WSW1
t
*
WSW2
t
AS1
t
AS2
t
RDS
t
RDH
= 3.6 V to 5.5 V, V
CC
= –20°C to +75°C
a
Min Max
55.5 500
17 —
17 —
— 10
— 10
— 25
10 —
— 25
— 25
— 25
32 —
62 —
10 —
38 —
15 —
0 —
= AV = 0 V,
SS SS
Unit Test Conditions
ns Figure 18-7,
Figure 18-8