mc68hc908ld64 Freescale Semiconductor, Inc, mc68hc908ld64 Datasheet - Page 345

• Manufacturer Part Number: mc68hc908ld64
• Description: M68hc08 Microcontrollers Microcontroller
• Manufacturer: Freescale Semiconductor, Inc

24.4 Functional Operating Range
24.5 Thermal Characteristics
MC68HC908LD64
Freescale Semiconductor
—
Rev. 3.0
Notes:
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 is a constant unique to the device. K can be determined for a known T
QFP (64 pins)
P
D.
With this value of K, P
(2)
Characteristic
Characteristic
Electrical Specifications
(1)
Table 24-3. Thermal Characteristics
Table 24-2. Operating Range
D
and T
J
can be determined for any value of T
Symbol
Symbol
V
P
T
θ
P
T
T
K
DD
JM
JA
I/O
A
D
J
P
D
P
= (I
User determined
K/(T
D
T
A
Functional Operating Range
× (T
DD
+ P
3.0 to 3.6
+ (P
0 to +85
J
Value
Value
x V
A
D
+ 273 °C)
100
Electrical Specifications
70
2
+ 273 °C)
D
DD
× θ
× θ
) + P
JA
JA
A
A
)
.
and measured
I/O
=
Data Sheet
°C/W
W/°C
Unit
Unit
°C
°C
°C
W
W
V
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