Renesas H8S Series Hardware Manual page 766

(3) Bus Timing
Table 22-28 lists the bus timing.
Table 22-28 Bus Timing
Condition A: V = 2.7 to 5.5 V, AV
CC
V = AV
SS
T = –40 to +85°C (wide-range specifications)
a
= 5.0 V ± 10%, AV
Condition B: V
CC
V = AV
SS
T = –40 to +85°C (wide-range specifications)
a
Condition C: V = 3.0 to 5.5 V, AV
CC
V = AV
SS
T = –40 to +85°C (wide-range specifications)
a
Item
Address delay time
Address setup time
Address hold time
Precharge time
CS delay time 1
CS delay time 2
CS delay time 3
AS delay time
RD delay time 1
RD delay time 2
CAS delay time
Read data setup time t
Read data hold time
Read data access
time 1
Read data access
time 2
Read data access
time 3
Read data access
time 4
Read data access
time 5
WR delay time 1
WR delay time 2
WR pulse width 1
Rev.6.00 Oct.28.2004 page 738 of 1016
REJ09B0138-0600H
= 2.7 to 5.5 V, V
CC
= 0 V, ø = 2 to 10 MHz, T
SS
= 5.0 V ± 10%, V
CC
= 0 V, ø= 2 to 20 MHz, T
SS
= 3.0 to 5.5 V, V
CC
= 0 V, ø = 2 to 13 MHz, T
SS
Condition A
Symbol Min
t —
AD
0.5 ×
t
AS
t – 30
cyc
0.5 ×
t
AH
t – 20
cyc
1.5 ×
t
PCH
t – 40
cyc
t —
CSD1
t —
CSD2
t —
CSD3
t —
ASD
t —
RSD1
t —
RSD2
t —
CASD
30
RDS
t 0
RDH
t —
ACC1
t —
ACC2
t —
ACC3
t —
ACC4
t —
ACC5
t —
WRD1
t —
WRD2
1.0 ×
t
WSW1
t – 40
cyc
= 2.7 V to AV
ref
= –20 to +75°C (regular specifications),
a
= 4.5 V to AV
ref
= –20 to +75°C (regular specifications),
a
= 3.0 V to AV
ref
= –20 to +75°C (regular specifications),
a
Condition B
Max Min Max
40 — 20
0.5 ×
— —
t – 15
cyc
0.5 ×
— —
t – 10
cyc
1.5 ×
— —
t – 20
cyc
40 — 20
40 — 20
40 — 25
40 — 20
40 — 20
40 — 20
40 — 20
— 15 —
— 0 —
1.0 × 1.0 ×
—
t – 50 t – 25
cyc cyc
1.5 × 1.5 ×
—
t – 50 t – 25
cyc cyc
2.0 × 2.0 ×
—
t – 50 t – 25
cyc cyc
2.5 × 2.5 ×
—
t – 50 t – 25
cyc cyc
3.0 × 3.0 ×
—
t – 50 t – 25
cyc cyc
40 — 20
40 — 20
1.0 ×
— —
t – 20
cyc
,
CC
,
CC
,
CC
Condition C
Min Max Unit Conditions
— 40 ns
0.5 ×
— ns
t – 30
cyc
0.5 ×
— ns
t – 20
cyc
1.5 ×
— ns
t – 40
cyc
— 40 ns
— 40 ns
— 40 ns
— 40 ns
— 40 ns
— 40 ns
— 40 ns
30 — ns
0 — ns
1.0 ×
— ns
t – 50
cyc
1.5 ×
— ns
t – 50
cyc
2.0 ×
— ns
t – 50
cyc
2.5 ×
— ns
t – 50
cyc
3.0 ×
— ns
t – 50
cyc
— 40 ns
— 40 ns
1.0 ×
— ns
t – 40
cyc
Test
Figure 22-72
to
Figure 22-79