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| MC68HC908KX8 Datasheet, PDF (303/310 Pages) Motorola, Inc – Microcontrollers | |||
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B.5.2 Functional Operating Range
Characteristic
Operating temperature range
Operating voltage range
MC68HC08KX8 Overview
Electrical Specifiations
Symbol
TA
VDD
Value
â40 to 105
3.0 ± 10%
5.0 ± 10%
Unit
°C
V
B.5.3 Thermal Characteristics
Characteristic
Symbol
Value
Unit
Thermal resistance
PDIP (16 pins)
SOIC (16 pins)
θJA
66
°C/W
95
I/O pin power dissipation
PI/O
User determined
W
Power dissipation(1)
PD
PD = (IDD x VDD) + PI/O =
K/(TJ + 273°C)
W
Constant(2)
K
PD x (TA + 273°C)
+ PD2 x θJA
W/°C
Average junction temperature
TJ
TA + (PD x θJA)
°C
Maximum junction temperature
TJM
125
°C
1. Power dissipation is a function of temperature.
2. K is a constant unique to the device. K can be determined for a known TA and measured
PD. With this value of K, PD and TJ can be determined for any value of TA.
MC68HC908KX8 ⢠MC68HC908KX2 ⢠MC68HC08KX8 â Rev. 1.0
MOTOROLA
MC68HC08KX8 Overview
Technical Data
303
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