SH7144_08 Datasheet, PDF (829/930 Pages) Renesas Technology Corp – 32-Bit RISC Microcomputer SuperHTM RISC engine Family/SH7144 Series

26. Electrical Characteristics
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
t_WOVD
Min.
—
Max.
Unit
100
ns
Figure
Figure 26.18
CK
WDTOVF
V_OH
t_WOVD
V_OH
t_WOVD
Figure 26.18 WDT Timing
Rev.4.00 Mar. 27, 2008 Page 785 of 882
REJ09B0108-0400