Datasheet

ST6200C/ST6201C/ST6203C
83/100
CONTROL PIN CHARACTERISTICS (Cont’d)
10.10 TIMER PERIPHERAL CHARACTERISTICS
Subject to general operating conditions for V
DD
,
f
OSC
, and T
A
unless otherwise specified.
Refer to I/O port characteristics for more details on
the input/output alternate function characteristics
(TIMER).
10.10.1 Watchdog Timer
10.10.2 8-Bit Timer
Symbol Parameter Conditions Min Typ Max Unit
t
w(WDG)
Watchdog time-out duration
3,072 196,608 t
INT
f
CPU
=4MHz 0.768 49.152 ms
f
CPU
=8MHz 0.384 24.576 ms
Symbol Parameter Conditions Min Typ Max Unit
f
EXT
Timer external clock frequency 0 f
INT
/4 MHz
t
w
Pulse width at TIMER pin
VDD>4.5V 125 ns
VDD=3V 1 µs
1