MC9S08QE32 Datasheet, PDF (9/44 Pages) Freescale Semiconductor, Inc – 8-Bit HCS08 Central Processor Unit (CPU)

Electrical Characteristics
3.2 Parameter Classification
The electrical parameters shown in this supplement are guaranteed by various methods. To give the customer a better
understanding the following classification is used and the parameters are tagged accordingly in the tables where appropriate:
Table 2. Parameter Classifications
P Those parameters are guaranteed during production testing on each individual device.
C
Those parameters are achieved by the design characterization by measuring a statistically relevant
sample size across process variations.
Those parameters are achieved by design characterization on a small sample size from typical devices
T under typical conditions unless otherwise noted. All values shown in the typical column are within this
category.
D Those parameters are derived mainly from simulations.
NOTE
The classification is shown in the column labeled “C” in the parameter
tables where appropriate.
3.3 Absolute Maximum Ratings
Absolute maximum ratings are stress ratings only, and functional operation at the maxima is not guaranteed. Stress beyond the
limits specified in Table 3 may affect device reliability or cause permanent damage to the device. For functional operating
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_SS or V_DD) or the programmable pull-up resistor associated with the pin is enabled.
Table 3. Absolute Maximum Ratings
Rating
Symbol
Value
Unit
Supply voltage
Maximum current into V_DD
Digital input voltage
Instantaneous maximum current
Single pin limit (applies to all port pins)^{1, 2, 3}
V_DD
–0.3 to +3.8
V
I_DD
120
mA
V_In
–0.3 to V_DD + 0.3
V
I_D
± 25
mA
Storage temperature range
T_stg
–55 to 150
°C
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_DD) and negative (V_SS) clamp
voltages, then use the larger of the two resistance values.
2 _{All functional non-supply pins, except for PTA5 are internally clamped to VSS and VDD.}
MC9S08QE32 MCU Series Data Sheet, Rev. 1
Freescale Semiconductor
9