s908qc16vdse Freescale Semiconductor, Inc, s908qc16vdse Datasheet - Page 236

• Manufacturer Part Number: s908qc16vdse
• Description: M68hc08 Microcontrollers
• Manufacturer: Freescale Semiconductor, Inc

Electrical Specifications
19.3 Functional Operating Range
19.4 Thermal Characteristics
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
236
Operating temperature range
Operating voltage range
Maximum junction temperature
SS
or V
Thermal resistance
Thermal resistance
Single-layer board (1 signal plane)
Four-layer board (2 signal planes, 2 power planes)
MC68HC908QC16 • MC68HC908QC8 • MC68HC908QC4 Data Sheet, Rev. 4
DD
Characteristic
I/O
and multiply by the pin current for each I/O pin. Except in cases of unusually high
28-pin SOIC
28-pin TSSOP
20-pin SOIC
20-pin TSSOP
16-pin SOIC
16-pin TSSOP
28-pin SOIC
28-pin TSSOP
20-pin SOIC
20-pin TSSOP
16-pin SOIC
16-pin TSSOP
into account in power calculations, determine the difference between actual pin
Rating
Table 19-1. Thermal Characteristics
Symbol
θ
θ
JA
JA
Symbol
T
V
T
MAX
DD
A
SS
Value
109
123
– 40 to +125
– 40 to +105
68
94
75
84
45
61
46
68
50
77
– 40 to +85
or V
3.0 to 5.5
Value
135
DD
will be very small.
°C/W
°C/W
Unit
Freescale Semiconductor
Unit
°C
°C
V
Temp.
Code
—
—
M
V
C