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S12SPIV2D 데이터시트(PDF) 90 Page - Freescale Semiconductor, Inc

부품명 S12SPIV2D
상세설명  MC9S12DJ64 Device User GUide V01.17
PDF  126 Pages
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제조업체  FREESCALE [Freescale Semiconductor, Inc]
홈페이지  http://www.freescale.com
Logo FREESCALE - Freescale Semiconductor, Inc

S12SPIV2D 데이터시트(HTML) 90 Page - Freescale Semiconductor, Inc

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MC9S12DJ64 Device User Guide — V01.17
90
The total power dissipation can be calculated from:
Two cases with internal voltage regulator enabled and disabled must be considered:
1.
Internal Voltage Regulator disabled
PIO is the sum of all output currents on I/O ports associated with VDDX and VDDR.
For RDSON is valid:
respectively
2.
Internal voltage regulator enabled
IDDR is the current shown in Table A-7 and not the overall current flowing into VDDR, which
additionally contains the current flowing into the external loads with output high.
PIO is the sum of all output currents on I/O ports associated with VDDX and VDDR.
T
A
Ambient Temperature, [
°C ]
=
P
D
Total Chip Power Dissipation, [W]
=
Θ
JA
Package Thermal Resistance, [
°C/W]
=
P
D
P
INT
P
IO
+
=
P
INT
Chip Internal Power Dissipation, [W]
=
P
INT
I
DD
V
DD
⋅
I
DDPLL
V
DDPLL
⋅
I
DDA
+V
DDA
⋅
+
=
P
IO
R
DSON
i
∑
I
IO
i
2
⋅
=
R
DSON
V
OL
I
OL
------------ for outputs driven low
;
=
R
DSON
V
DD5
V
OH
–
I
OH
------------------------------------ for outputs driven high
;
=
P
INT
I
DDR
V
DDR
⋅
I
DDA
V
DDA
⋅
+
=
P
IO
R
DSON
i
∑
I
IO
i
2
⋅
=



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