MC9S08QA2 FREESCALE [Freescale Semiconductor, Inc], MC9S08QA2 Datasheet - Page 5

• Manufacturer Part Number: MC9S08QA2
• Description: 8-bit HCS08 Central Processor Unit (CPU)
• Manufacturer: FREESCALE [Freescale Semiconductor, Inc]

3
3.1
This chapter contains electrical and timing specifications for the MC9S08QA4 series of microcontrollers available at the time
of publication.
3.2
Absolute maximum ratings are stress ratings only, and functional operation at the maxima is not guaranteed. Stress beyond the
limits specified in
conditions, refer to the remaining tables in this section.
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, either V
3.3
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
the difference between actual pin voltage and V
unusually high pin current (heavy loads), the difference between pin voltage and V
Freescale Semiconductor
Electrical Characteristics
Introduction
Absolute Maximum Ratings
Thermal Characteristics
1
2
3
Supply voltage
Maximum current into V
Digital input voltage
Instantaneous maximum current
Storage temperature range
SS
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).
DD
Table 2
Single pin limit (applies to all port pins)
or V
, the injection current may flow out of V
DD
may affect device reliability or cause permanent damage to the device. For functional operating
) or the programmable pullup resistor associated with the pin is enabled.
Rating
DD
Table 2. Absolute Maximum Ratings
SS
MC9S08QA4 Series, Rev. 2
or V
DD
DD
load will shunt current greater than maximum injection
1, 2, 3
and multiply by the pin current for each I/O pin. Except in cases of
DD
and could result in external power supply going
Symbol
V
T
I
V
DD
I
DD
stg
D
SS
In
DD
and V
range during instantaneous and
I/O
into account in power calculations, determine
DD
–0.3 to V
DD
SS
) and negative (V
.
In
or V
–0.3 to 3.8
–55 to 150
> V
Value
120
±25
DD
DD
DD
will be very small.
) is greater than
+ 0.3
Electrical Characteristics
SS
) clamp
Unit
mA
mA
°C
V
V
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