Table 22.7 Bus Timing - Hitachi H8/3062 Hardware Manual

Table 22.7 Bus Timing

Condition: T = –20°C to +75°C (regular specifications), T
a
specifications)
Condition A: V = 2.7 to 5.5 V, AV
CC
Condition B: V = 3.0 to 5.5 V, AV
CC
Condition C: V = 5.0 V ± 10%, AV
CC
Item Symbol
Address delay time t
Address hold time t
Read strobe delay t
time
Address strobe t
delay time
Write strobe delay t
time
Strobe delay time t
Write strobe pulse t
width 1
Write strobe pulse t
width 2
Address setup t
time 1
Address setup t
time 2
Read data setup t
time
Read data hold t
time
666
= 2.7 to 5.5 V, V
CC
= 3.0 to 5.5 V, V
CC
= 5.0 V ± 10%, V
CC
A
Min Max
— 50
AD
0.5 t —
AH cyc
– 45
— 60
RSD
— 60
ASD
— 60
WSD
— 60
SD
1.0 t —
WSW1 cyc
– 50
1.5 t —
WSW2 cyc
– 50
0.5 t —
AS1 cyc
– 45
1.0 t —
AS2 cyc
– 45
50 —
RDS
0 —
RDH
= –40°C to +85°C (wide-range
a
= 2.7 to AV
REF
= 3.0 to AV
REF
= 4.5 to AV
REF
Condition
B
Min Max Min
— 40 —
0.5 t — 0.5 t
cyc
– 35 – 20
— 50 —
— 50 —
— 50 —
— 50 —
1.0 t — 1.0 t
cyc
– 40 – 25
1.5 t — 1.5 t
cyc
– 40 – 25
0.5 t — 0.5 t
cyc
– 29 – 20
1.0 t — 1.0 t
cyc
– 35 – 20
40 — 25
0 — 0
, V = AV = 0 V
CC SS SS
, V = AV = 0 V
CC SS SS
, V = AV = 0 V
CC SS SS
C
Test
Max Unit Conditions
25 ns Figure 22.23,
figure 22.24
— ns
cyc
25 ns
25 ns
25 ns
25 ns
— ns
cyc
— ns
cyc
— ns
cyc
— ns
cyc
— ns
— ns