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Table 21.15 Bus Timing
Condition:
T
= –20°C to +75°C (regular specifications), T
a
specifications)
Condition A:
V
= 3.0 to 5.5 V, AV
CC
fmax = 13 MHz
Condition B:
V
= 5.0 V ± 10%, AV
CC
fmax = 20 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
= 3.0 to 5.5 V, V
CC
= 5.0 V ± 10%, V
CC
A
Symbol Min
Max
t
—
40
AD
t
0.5 t
—
AH
cyc
– 35
t
—
50
RSD
t
—
50
ASD
t
—
50
WSD
t
—
50
SD
t
1.0 t
—
WSW1
cyc
– 40
t
1.5 t
—
WSW2
cyc
– 40
t
0.5 t
—
AS1
cyc
– 29
t
1.0 t
—
AS2
cyc
– 35
t
40
—
RDS
t
0
—
RDH
t
—
50
WDD
t
1.0 t
—
WDS1
cyc
– 40
t
2.0 t
—
WDS2
cyc
– 40
t
0.5 t
—
WDH
cyc
– 25
Section 21 Electrical Characteristics
= –40°C to +85°C (wide-range
a
= 3.0 to AV
REF
CC
= 4.5 to AV
REF
Condition
B
Min
Max
—
25
0.5 t
—
cyc
– 20
—
25
—
25
—
25
—
25
1.0 t
—
cyc
– 25
1.5 t
—
cyc
– 25
0.5 t
—
cyc
– 20
1.0 t
—
cyc
– 20
25
—
0
—
—
35
1.0 t
—
cyc
– 30
2.0 t
—
cyc
– 30
0.5 t
—
cyc
– 15
Rev. 4.00 Jan 26, 2006 page 727 of 938
, V
= AV
= 0 V,
SS
SS
, V
= AV
= 0 V,
CC
SS
SS
Test
Unit
Conditions
ns
Figure 21.11,
figure 21.12,
ns
figure 21.14,
figure 21.15,
ns
figure 21.17
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
REJ09B0276-0400
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