MC9S08DZ60CLH Datasheet, PDF (370/416 Pages) Freescale Semiconductor, Inc – MC9S08DZ60 Series Features

Appendix A 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, either V_SS or V_DD).
Table A-2. Absolute Maximum Ratings
Num
Rating
Symbol
Value
Unit
1 Supply voltage
2 Input voltage
Instantaneous maximum current Single pin limit
3 _{(applies to all port pins)1, 2, 3}
V_DD
V_In
I_D
–0.3 to + 5.8
V
– 0.3 to V_DD + 0.3 V
± 25
mA
4 Maximum current into V_DD
I_DD
120
mA
5 Storage temperature
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 are internally clamped to VSS and VDD.}
3 _{Power supply must maintain regulation within operating VDD range during instantaneous and operating}
maximum current conditions. If positive injection current (V_In > V_DD) is greater than I_DD, the injection
current may flow out of V_DD and could result in external power supply going out of regulation. Ensure
external V_DD 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.
A.4 Thermal Characteristics
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_I/O into account in power calculations, determine the difference between actual pin voltage and V_SS or
V_DD and multiply by the pin current for each I/O pin. Except in cases of unusually high pin current (heavy
loads), the difference between pin voltage and V_SS or V_DD will be very small.
MC9S08DZ60 Series Data Sheet, Rev. 4
370
Freescale Semiconductor