mc68hc908qb4 Freescale Semiconductor, Inc, mc68hc908qb4 Datasheet - Page 208
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mc68hc908qb4
Manufacturer Part Number
mc68hc908qb4
Description
M68hc08 Microcontrollers
Manufacturer
Freescale Semiconductor, Inc
Datasheet
1.MC68HC908QB4.pdf
(236 pages)
- Current page: 208 of 236
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Electrical Specifications
18.3 Functional Operating Range
18.4 Thermal Characteristics
208
Operating temperature range
Operating voltage range
Thermal resistance
I/O pin power dissipation
Power dissipation
Constant
Average junction temperature
Maximum junction temperature
1. Power dissipation is a function of temperature.
2. K constant unique to the device. K can be determined for a known T
16-pin PDIP
16-pin SOIC
16-pin TSSOP
can be determined for any value of T
(2)
(1)
Characteristic
Characteristic
A
.
MC68HC908QB8 Data Sheet, Rev. 2
(T
Symbol
L
V
T
to T
DD
A
Symbol
H
P
T
A
θ
P
T
)
K
JA
I/O
JM
and measured P
D
J
– 40 to +125
– 40 to +105
– 40 to +85
2.7 to 5.5
Value
+ P
P
User determined
P
I/O
D
T
D.
D
A
x (T
+ P
= K/(T
= (I
With this value of K, P
+ (P
Value
D
133
A
150
DD
76
90
2
+ 273°C)
D
x θ
J
x V
x θ
+ 273°C)
Freescale Semiconductor
Unit
°C
JA
V
JA
DD
)
)
Temperature
Code
D
—
M
C
V
°C/W
W/°C
and T
Unit
°C
°C
W
W
J
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