mc9s08qg8 Freescale Semiconductor, Inc, mc9s08qg8 Datasheet - Page 258

• Manufacturer Part Number: mc9s08qg8
• Description: Hcs08 Microcontrollers
• Manufacturer: Freescale Semiconductor, Inc

Appendix A Electrical Characteristics
A.3
This section provides information about operating temperature range, power dissipation, and package
thermal resistance. Power dissipation on I/O pins is usually small compared to the power dissipation in
on-chip logic and voltage regulator circuits, and it is user-determined rather than being controlled by the
MCU design. To take P
voltage and V
pin current (heavy loads), the difference between pin voltage and V
258
Thermal Characteristics
SS
or V
Operating temperature range
(packaged)
Thermal resistance
Thermal resistance
Single-layer board
Four-layer board
DD
I/O
and multiply by the pin current for each I/O pin. Except in cases of unusually high
8-pin PDIP
8-pin NB SOIC
8-pin DFN
16-pin PDIP
16-pin TSSOP
16-pin QFN
8-pin PDIP
8-pin NB SOIC
8-pin DFN
16-pin PDIP
16-pin TSSOP
16-pin QFN
into account in power calculations, determine the difference between actual pin
MC9S08QG8 and MC9S08QG4 Data Sheet, Rev. 1.01
Rating
Table A-2. Thermal Characteristics
Symbol
θ
θ
T
JA
JA
A
SS
–40 to 85
T
Value
L
113
150
179
133
132
or V
78
72
87
41
53
86
36
to T
H
DD
will be very small.
°C/W
°C/W
Unit
°C
Freescale Semiconductor