SH7144 Datasheet, PDF (723/773 Pages) Renesas Technology Corp – Hitachi SuperH RISC engine

26.3.8 Watchdog Timer (WDT)Timing
Table 26.10 shows watchdog timer timing.
Table 26.10 Watchdog Timer Timing
Conditions: V_CC = PLLV_CC =3.3 V ± 0.3 V, AV_CC = 3.3 V ± 0.3 V, AV_CC = V_CC ± 0.3 V,
AV_ref = 3.0 V to AV_CC , V_SS = PLLV_SS = AV_SS = 0 V, T_a = –20°C to +75°C
(regular specifications), T_a = –40°C to +85°C (wide-range specifications),
When programming or erasing flash memory, T_a = –20°C to +75°C.
Item
WDTOVF delay time
Symbol
Min
t_WOVD
—
Max
Unit
Figure
100
ns
Figure 26.18
CK
V_OH
V_OH
t_WOVD
t_WOVD
Figure 26.18 WDT Timing
Rev. 2.0, 09/02, page 683 of 732