|
MC68HC08JL8 Datasheet, PDF (186/212 Pages) Freescale Semiconductor, Inc – Microcontrollers | |||
|
◁ |
Electrical Specifications
17.3 Functional Operating Range
Table 17-2. Operating Range
Characteristic
Operating temperature range
Operating voltage range
Symbol
TA
VDD
Value
â 40 to +125
â 40 to +85
â
5 ±10%
3 ±10%
5 ±10%
Unit
°C
V
17.4 Thermal Characteristics
Table 17-3. Thermal Characteristics
Characteristic
Thermal resistance
20-pin PDIP
20-pin SOIC
28-pin PDIP
28-pin SOIC
32-pin SDIP
32-pin LQFP
I/O pin power dissipation
Power dissipation(1)
Constant(2)
Average junction temperature
Symbol
θJA
PI/O
PD
K
TJ
Value
70
70
70
70
70
95
User determined
PD = (IDD Ã VDD) + PI/O =
K/(TJ + 273 °C)
PD x (TA + 273 °C)
+ PD2 à θJA
TA + (PD à θJA)
Unit
°C/W
W
W
W/°C
°C
1. Power dissipation is a function of temperature.
2. K 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.
MC68HC908JL8/JK8 ⢠MC68HC08JL8/JK8 ⢠MC68HC908KL8 Data Sheet, Rev. 3.1
186
Freescale Semiconductor
|
▷ |