參數(shù)資料
型號: HCS12COREUG
廠商: Motorola, Inc.
英文描述: MC9S12DT128B
中文描述: MC9S12DT128B
文件頁數(shù): 87/124頁
文件大?。?/td> 577K
代理商: HCS12COREUG
MC9S12DT128B Device User Guide — V01.07
87
calculations refer to
Section A.1.8 Power Dissipation and Thermal
Characteristics
.
A.1.8 Power Dissipation and Thermal Characteristics
Power dissipation and thermal characteristics are closely related. The user must assure that the maximum
operating junction temperature is not exceeded. The average chip-junction temperature (T
J
) in
°
C can be
obtained from:
Table A-4 Operating Conditions
Rating
Symbol
Min
Typ
Max
Unit
I/O, Regulator and Analog Supply Voltage
V
DD5
4.5
5
5.25
V
Digital Logic Supply Voltage
1
NOTES
:
1. The device contains an internal voltage regulator to generate the logic and PLL supply out of the I/O supply. The
absolute maximum ratings apply when this regulator is disabled and the device is powered from an external
source.
2. Please refer to
Section A.1.8 Power Dissipation and Thermal Characteristics
for more details about the rela-
tion between ambient temperature T
A
and device junction temperature T
J
.
V
DD
2.35
2.5
2.75
V
PLL Supply Voltage
2
V
DDPLL
2.25
2.5
2.75
V
Voltage Difference VDDX to VDDR and VDDA
VDDX
-0.1
0
0.1
V
Voltage Difference VSSX to VSSR and VSSA
VSSX
-0.1
0
0.1
V
Oscillator
f
osc
0.5
-
16
MHz
Bus Frequency
f
bus
0.5
-
25
MHz
MC9S12DT128B
C
Operating Junction Temperature Range
T
J
-40
-
100
°
C
Operating Ambient Temperature Range
2
T
A
-40
27
85
°
C
MC9S12DT128B
V
Operating Junction Temperature Range
T
J
-40
-
120
°
C
Operating Ambient Temperature Range
2
T
A
-40
27
105
°
C
MC9S12DT128B
M
Operating Junction Temperature Range
T
J
-40
-
140
°
C
Operating Ambient Temperature Range
2
T
A
-40
27
125
°
C
TJ
TA
PD
Θ
JA
(
)
+
=
TJ
TA
Junction Temperature, [
°
C
]
=
Ambient Temperature, [
°
C
]
=
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