Appendix A Electrical Characteristics
MC9S08SG32 Data Sheet, Rev. 8
292
Freescale Semiconductor
This device contains circuitry protecting against damage due to high static voltage or electrical elds;
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 VSS or VDD) or the programmable
pull-up resistor associated with the pin is enabled.
Table A-2. Absolute Maximum Ratings
#
Rating
Symbol
Value
Unit
Temp Rated
Standar
d
AEC
Grade
0
1
Supply voltage
VDD
–0.3 to +5.8
V
2
Maximum current into VDD
IDD
120
mA
3
Digital input voltage
VIn
–0.3 to VDD + 0.3
V
4
Instantaneous maximum current
Single pin limit (applies to all port pins)1, 2, 3
1
Input must be current limited to the value specied. To determine the value of the required current-limiting resistor, calculate
resistance values for positive (VDD) and negative (VSS) clamp voltages, then use the larger of the two resistance values.
2 All functional non-supply pins except RESET are internally clamped to V
SS and VDD.
3 Power supply must maintain regulation within operating V
DD range during instantaneous and operating maximum current
conditions. If positive injection current (VIn > VDD) is greater than IDD, the injection current may ow out of VDD and could
result in external power supply going out of regulation. Ensure external VDD load will shunt current greater 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).
ID
± 25
mA
5
Storage temperature range
Tstg
–55 to 150
°C