ST6200C/ST6201C/ST6203C
CONTROL PIN CHARACTERISTICS (Cont’d)
10.10 TIMER PERIPHERAL CHARACTERISTICS
Subject to general operating conditions for VDD,
fOSC, and TA unless otherwise specified.
10.10.1 Watchdog Timer
Refer to I/O port characteristics for more details on
the input/output alternate function characteristics
(TIMER).
Symbol
Parameter
tw(WDG) Watchdog time-out duration
Conditions
fCPU=4MHz
fCPU=8MHz
Min
3,072
0.768
0.384
Typ
Max
Unit
196,608 tINT
49.152 ms
24.576 ms
10.10.2 8-Bit Timer
Symbol
Parameter
fEXT Timer external clock frequency
tw
Pulse width at TIMER pin
Conditions
VDD>4.5V
VDD=3V
Min
Typ
Max
Unit
0
fINT/4
MHz
125
ns
1
µs
83/100
1