Datasheet

ST72321Rx ST72321ARx ST72321Jx
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12.10 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 (out-
put compare, input capture, external clock, PWM output...).
12.10.1 8-Bit PWM-ART Auto-Reload Timer
12.10.2 16-Bit Timer
Symbol Parameter Conditions Min Typ Max Unit
t
res(PWM)
PWM resolution time
1t
CPU
f
CPU
=8MHz 125 ns
f
EXT
ART external clock frequency 0 f
CPU
/2
MHz
f
PWM
PWM repetition rate 0 f
CPU
/2
Res
PWM
PWM resolution 8bit
V
OS
PWM/DAC output step voltage V
DD
=5V, Res=8-bits 20 mV
Symbol Parameter Conditions Min Typ Max Unit
t
w(ICAP)in
Input capture pulse time 1 t
CPU
t
res(PWM)
PWM resolution time
2t
CPU
f
CPU
=8MHz 250 ns
f
EXT
Timer external clock frequency 0 f
CPU
/4 MHz
f
PWM
PWM repetition rate 0 f
CPU
/4 MHz
Res
PWM
PWM resolution 16 bit