参数资料
型号: MC9S12DG256CVPV
厂商: FREESCALE SEMICONDUCTOR INC
元件分类: 微控制器/微处理器
英文描述: 16-BIT, FLASH, 25 MHz, MICROCONTROLLER, PQFP112
封装: LQFP-112
文件页数: 117/126页
文件大小: 3405K
代理商: MC9S12DG256CVPV
MC9S12DP256B Device User Guide — V02.15
92
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
J
T
A
P
D
Θ
JA
()
+
=
T
J
Junction Temperature, [
°C ]
=
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
=
F
re
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sc
a
le
S
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m
ic
o
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r,
I
Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com
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