549
(7) Watchdog Timer Timing
Table 20.24 Watchdog Timer Timing
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 to 20 MHz
*
1
, Ta = –20 to +75°C
*
2
Notes: *1 ROMless products only for 20 MHz version
*2 Regular-specification products; for wide-temperature-range products, Ta = –40 to
+85°C
Item Symbol Min Max Unit Figure
WDTOVF delay time t
WOVD
— 100 ns 20.70
t
WOVD
CK
t
WOVD
WDTOVF
Figure 20.70 Watchdog Timer Output Timing