530
Table 20.20 Bus Timing (2)
Conditions: V
CC
= 3.3 V ±0.3V, AV
CC
= 3.3 V ±0.3V, AV
CC
= V
CC
±0.3V, AV
ref
= 3.0 V to
AV
CC
, V
SS
= AV
SS
= 0 V,
φ
= 12.5 MHz, Ta = –20 to +75°C*
Note: * Regular-specification products; for wide-temperature-range products, Ta = –40 to +85°C
Item
Symbol
Min
Max
Unit
Figures
Address delay time
t
AD
—
40
ns
20.52, 20.53, 20.55–
20.58, 20.63, 20.64
CS
delay time 1
t
CSD1
—
40
ns
20.52, 20.53, 20.64
CS
delay time 2
t
CSD2
—
40
ns
CS
delay time 3
t
CSD3
—
40
ns
20.63
CS
delay time 4
t
CSD4
—
40
ns
Access time 1
*
4
35% duty
*
1
t
RDAC1
t
cyc
×
0.65 – 35—
ns
20.52
from read strobe
50% duty
t
cyc
×
0.5 – 35 —
ns
Access time 2
*
4
from read strobe
35% duty
*
1
t
RDAC2
t
cyc
×
(n+1.65)
– 35
*
2
—
ns
20.53, 20.54
50% duty
t
cyc
×
(n+1.5)
– 35
*
2
—
ns
Access time 3
*
4
from read strobe
35% duty
*
1
t
RDAC3
t
cyc
×
(n+0.65)
– 35
*
2
—
ns
20.63
50% duty
t
cyc
×
(n+0.5)
– 35
*
2
—
ns
Read strobe delay time
t
RSD
—
40
ns
20.52, 20.53, 20.55–
20.59, 20.63
Read data setup time
t
RDS
25
—
ns
20.52, 20.53, 20.55–
20.58, 20.63
Read data hold time
t
RDH
0
—
ns
Write strobe delay time 1
t
WSD1
—
40
ns
20.53, 20.57, 20.58,
20.63, 20.64
Write strobe delay time 2
t
WSD2
—
30
ns
20.53, 20.57, 20.58,
20.63
Write strobe delay time 3
t
WSD3
—
40
ns
20.55, 20.56
Write strobe delay time 4
t
WSD4
—
40
ns
20.55, 20.56, 20.64
Summary of Contents for HD6417032
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Page 525: ...490 CK RAS CAS TRp TRc TRcc tRASD1 tRASD2 tCASD3 tCASD2 TRr tCSR Figure 20 18 Self Refresh ...
Page 578: ...543 CK RAS CAS TRp TRc TRcc tRASD1 tRASD2 tCASD3 tCASD2 TRr tCSR Figure 20 62 Self Refresh ...
Page 689: ...654 ...