mc9rs08ka8 Freescale Semiconductor, Inc, mc9rs08ka8 Datasheet - Page 6

• Manufacturer Part Number: mc9rs08ka8
• Description: Rs08 Central Processor Unit
• Manufacturer: Freescale Semiconductor, Inc

Electrical Characteristics
This device contains circuitry protecting against damage due to high static voltage or electrical fields; however, it is advised
that normal precautions be taken to avoid application of any voltages higher than maximum-rated voltages to this
high-impedance circuit. Reliability of operation is enhanced if unused inputs are tied to an appropriate logic voltage level (for
instance, V
3.4
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 voltage regulator circuits and it
is user-determined rather than being controlled by the MCU design. In order to take P
determine the difference between actual pin voltage and V
in cases of unusually high pin current (heavy loads), the difference between pin voltage and V
small.
The average chip-junction temperature (TJ) in qC can be obtained from:
where:
T
6
A
= Ambient temperature, qC
1
2
3
Supply voltage
Maximum current into V
Digital input voltage
Instantaneous maximum current
Single pin limit (applies to all port pins)
Storage temperature range
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
resistance values.
All functional non-supply pins are internally clamped to V
clamped to V
Power supply must maintain regulation within operating V
current conditions. If positive injection current (V
and could result in external power supply going out of regulation. Ensure external V
than maximum injection 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.
SS
Operating temperature range (packaged)
Maximum junction temperature
Thermal resistance 16-pin PDIP
Thermal resistance 16-pin SOIC
Thermal resistance 20-pin PDIP
Thermal resistance 20-pin SOIC
Thermal Characteristics
or V
DD
SS
) or the programmable pull-up resistor associated with the pin is enabled.
only.
DD
Rating
Rating
Preliminary—Subject to Change Without Notice
Table 3. Absolute Maximum Ratings
1
Table 4. Thermal Characteristics
,
2
,
3
DD
T
MC9RS08KA8 Series, Rev. 1
J
) and negative (V
= T
In
A
> V
+ (P
SS
DD
or V
T
T
T
T
T
T
D
) is greater than I
A
JA
JA
JA
JA
JMAX
SS
DD
u T
Symbol
DD
and V
range during instantaneous and operating maximum
JA
SS
and multiply by the pin current for each I/O pin. Except
)
) clamp voltages, then use the larger of the two
Symbol
DD
V
T
I
V
DD
I
DD
stg
D
In
except the RESET/V
T
–40 to 85
105
80
112
75
96
L
DD
to T
, the injection current may flow out of V
H
I/O
Value
–0.3 to V
DD
into account in power calculations,
–0.3 to 5.8
–55 to 150
load will shunt current greater
Value
120
r25
SS
PP
DD
or V
+ 0.3
pin which is internally
Freescale Semiconductor
DD
qC
qC
qC/W
qC/W
qC/W
qC/W
will be very
Unit
Unit
mA
mA
qC
V
V
Eqn. 1
DD