511
t
PRS
CK
t
PWD
Ports A–C
(Read)
Ports A–C
(Write)
T
1
T
2
T
3
t
PRH
Figure 20.38 Programmable Timing Pattern Controller Output Timing
(
7
)
Watchdog Timer Timing
Table 20.11 Watchdog Timer Timing
Case A: V
CC
= 3.0 to 5.5 V, AV
CC
= 3.0 to 5.5 V, AV
CC
= V
CC
±10%, AV
ref
= 3.0 V to AV
CC
,
V
SS
= AV
SS
= 0 V,
φ
= 12.5 MHz, Ta = –20 to +75°C*
Case B: V
CC
= 5.0 V ±10%, AV
CC
= 5.0 V ±10%, AV
CC
= V
CC
±10%, AV
ref
= 4.5 V to AV
CC
,
V
SS
= AV
SS
= 0 V,
φ
= 20 MHz, Ta = –20 to +75°C*
Note: * Regular-specification products; for wide-temperature-range products, Ta = –40 to +85°C
Cases A and B
Item
Symbol
Min
Max
Unit
Figure
WDTOVF
delay time
t
WOVD
—
100
ns
20.39
t
WOVD
CK
t
WOVD
WDTOVF
Figure 20.39 Watchdog Timer Output Timing
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 ...
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