S9S08AW16A FREESCALE [Freescale Semiconductor, Inc], S9S08AW16A Datasheet - Page 294

• Manufacturer Part Number: S9S08AW16A
• Description: HCS08 Microcontrollers
• Manufacturer: FREESCALE [Freescale Semiconductor, Inc]

Appendix A Electrical Characteristics and Timing Specifications
A.4
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 it is user-determined rather than being controlled by the MCU design. In order to take
P
V
loads), the difference between pin voltage and V
294
I/O
DD
into account in power calculations, determine the difference between actual pin voltage and V
and multiply by the pin current for each I/O pin. Except in cases of unusually high pin current (heavy
Thermal Characteristics
1
2
3
Instantaneous maximum current
Maximum current into V
Storage temperature
Maximum junction temperature
1
Input must be current limited to the value specified. To determine the value of the required
current-limiting resistor, calculate resistance values for positive (V
voltages, then use the larger of the two resistance values.
All functional non-supply pins are internally clamped to V
Power supply must maintain regulation within operating V
operating maximum current conditions. If positive injection current (V
I
out of regulation. Ensure external V
current. This will be the greatest risk when the MCU is not consuming power. Examples are: if
no system clock is present, or if the clock rate is very low which would reduce overall power
consumption.
Operating temperature range (packaged)
Thermal resistance
Single pin limit (applies to all port pins)
DD
Junction temperature is a function of die size, on-chip power dissipation, package thermal
resistance, mounting site (board) temperature, ambient temperature, air flow, power
dissipation of other components on the board, and board thermal resistance.
, the injection current may flow out of V
48-pin QFN
44-pin LQFP
32-pin LQFP
42-pin SDIP
Table A-2. Absolute Maximum Ratings (continued)
1,2,3,4
Rating
DD
Rating
MC9S08AC16 Series Data Sheet, Rev. 8
Table A-3. Thermal Characteristics
DD
load will shunt current greater than maximum injection
1
,
SS
2
DD
,
3
or V
and could result in external power supply going
2s2p
2s2p
2s2p
2s2p
DD
1s
1s
1s
1s
Symbol
will be very small.
T
I
Symbol
T
I
DD
stg
SS
D
J
DD
θ
T
JA
and V
A
range during instantaneous and
DD
DD
) and negative (V
.
–55 to +150
In
–40 to 125
> V
T
Value
Value
L
± 25
120
150
84
27
73
56
85
56
58
47
to T
DD
) is greater than
H
Freescale Semiconductor
SS
°C/W
Unit
) clamp
°C
Unit
mA
mA
°C
°C
SS
or