Datasheet

Pulse-Width Modulator Characteristics
M68HC12B Family Data Sheet, Rev. 9.1
Freescale Semiconductor 319
19.13 Pulse-Width Modulator Characteristics
Characteristic
(1)
1. V
DD
= 5.0 Vdc ± 10%, V
SS
= 0 Vdc, T
A
= T
L
to T
H
, unless otherwise noted
Symbol Min Max Unit
E-clock frequency
f
ECLK
—8.0MHz
A-clock frequency
Selectable
f
ACLK
f
ECLK
/128
f
ECLK
Hz
B-clock frequency
Selectable
f
BCLK
f
ECLK
/128
f
ECLK
Hz
Left-aligned PWM frequency
8-bit
16-bit
f
LPWM
f
ECLK
/1 M
f
ECLK
/256 M
f
ECLK
/2
f
ECLK
/2
Hz
Left-aligned PWM resolution
r
LPWM
f
ECLK
/4 K f
ECLK
Hz
Center-aligned PWM frequency
8-bit
16-bit
f
CPWM
f
ECLK
/2 M
f
ECLK
/512 M
f
ECLK
f
ECLK
Hz
Center-aligned PWM resolution
r
CPWM
f
ECLK
/4 K f
ECLK
Hz