Datasheet

Electrical Characteristics
S12XS Family Reference Manual, Rev. 1.13
Freescale Semiconductor 663
The total power dissipation can be calculated from:
P
IO
is the sum of all output currents on I/O ports associated with V
DDX
, whereby
Two cases with internal voltage regulator enabled and disabled must be considered:
1. Internal voltage regulator disabled
2. Internal voltage regulator enabled
P
D
P
INT
P
IO
+=
P
INT
Chip Internal Power Dissipation, [W]=
P
IO
R
DSON
i
∑
I
IO
i
2
⋅=
R
DSON
V
OL
I
OL
------------ for outputs driven low;=
R
DSON
V
DD35
V
OH
–
I
OH
-------------------------------------- for outputs driven high;=
P
INT
I
DD
V
DD
⋅ I
DDPLL
V
DDPLL
⋅ I
DDA
+V
DDA
⋅+=
P
INT
I
DDR
V
DDR
⋅ I
DDA
V
DDA
⋅+=