Table 22.26 Bus Timing - Hitachi H8/3062 Hardware Manual

Table 22.26 Bus Timing

Condition: T = –20°C to +75°C (regular specifications),
a
T = –40°C to 85°C (wide-range specifications)
a
Condition A: V = 5.0 V ± 10%, AV
CC
fmax = 20 MHz
Condition B: V = 5.0 V ± 10%, AV
CC
fmax = 25 MHz
Item
Address delay time
Address hold time
Read strobe delay time
Address strobe delay time
Write strobe delay time
Strobe delay time
Write strobe pulse width 1
Write strobe pulse width 2
Address setup time 1
Address setup time 2
Read data setup time
Read data hold time
Write data delay time
Write data setup time 1
Write data setup time 2
Write data hold time
Read data access time 1
Read data access time 2
Read data access time 3
Read data access time 4
Precharge time 1
Precharge time 2
Wait setup time
Wait hold time
= 5.0 V ± 10%, V
CC
= 5.0 V ± 10%, V
CC
Symbol Min
t —
AD
t 0.5 t – 20
AH cyc
t —
RSD
t —
ASD
t —
WSD
t —
SD
t 1.0 t – 25
WSW1 cyc
t 1.5 t – 25
WSW2 cyc
t 0.5 t – 20
AS1 cyc
t 1.0 t – 20
AS2 cyc
t 25
RDS
t 0
RDH
t —
WDD
t 1.0 t – 30
WDS1 cyc
t 2.0 t – 30
WDS2 cyc
t 0.5 t – 15
WDH cyc
t —
ACC1
t —
ACC2
t —
ACC3
t —
ACC4
t 1.0 t – 20
PCH1 cyc
t 0.5 t – 20
PCH2 cyc
t 25
WTS
t 5
WTH
= 4.5 to AV
REF CC
= 4.5 to AV
REF CC
Condition
A and B
Max
25
—
25
25
25
25
—
—
—
—
—
—
35
—
—
—
2.0 t – 45
cyc
3.0 t – 45
cyc
1.5 t – 45
cyc
2.5 t – 45
cyc
—
—
—
—
, V = AV = 0 V,
SS SS
, V = AV = 0 V,
SS SS
Test
Unit Conditions
ns Figure 22.23,
figure 22.24
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns Figure 22.25
ns
703