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Read data access
time 5
WR delay time 1
WR delay time 2
WR pulse width 1
WR pulse width 2
Write data delay time t
Write data setup time t
Write data hold time
WR setup time
WR hold time
RAS precharge time
CAS precharge time1 t
CAS precharge time2 t
CAS delay time1
CAS delay time2
OE delay time1
OE delay time2
CAS setup time
WAIT setup time
WAIT hold time
BREQ setup time
BACK delay time
Bus-floating time
BREQO delay time
894
Condition A
Symbol
Min
t
—
ACC5
t
—
WRD1
t
—
WRD2
1.0 ×
t
WSW1
t
– 30
cyc
1.5 ×
t
WSW2
t
– 30
cyc
—
WDD
0.5 ×
WDS
t
– 27
cyc
0.5 ×
t
WDH
t
– 20
cyc
0.5 ×
t
WCS
t
– 15
cyc
0.5 ×
t
WCH
t
– 15
cyc
1.5 ×
t
PCH
t
– 30
cyc
1.0 ×
CP1
t
– 20
cyc
0.5 ×
CP2
t
– 20
cyc
t
—
CASD1
t
—
CASD2
t
—
OED1
t
—
OED2
0.5 ×
t
CSR
t
– 25
cyc
t
40
WTS
t
10
WTH
t
60
BRQS
t
—
BACD
t
—
BZD
t
—
BRQOD
Condition B
Max
Min
3.0 ×
—
t
– 35
cyc
30
—
30
—
1.0 ×
—
t
– 15
cyc
1.5 ×
—
t
– 15
cyc
30
—
0.5 ×
—
t
– 15
cyc
0.5 ×
—
t
– 8
cyc
0.5 ×
—
t
– 10
cyc
0.5 ×
—
t
– 10
cyc
1.5 ×
—
t
– 15
cyc
1.0 ×
—
t
– 8
cyc
0.5 ×
—
t
– 8
cyc
30
—
30
—
30
—
30
—
0.5 ×
—
t
– 8
cyc
—
25
—
5
—
30
30
—
60
—
40
—
Test
Max
Unit
Conditions
3.0 ×
ns
Figure 25-6 to
Figure 25-11
t
– 25
cyc
18
ns
18
ns
—
ns
—
ns
22
ns
—
ns
—
ns
—
ns
—
ns
—
ns
Figure 25-11 to
Figure 25-13
—
ns
—
ns
20
ns
18
ns
18
ns
18
ns
—
ns
—
ns
Figure 25-8
—
ns
—
ns
Figure 25-14
15
ns
40
ns
25
ns
Figure 25-15
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