MC9S08SG32 Datasheet, PDF (297/328 Pages) Freescale Semiconductor, Inc – HCS08 Microcontrollers

Appendix A Electrical Characteristics
4 _{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 clock rate is very low (which would reduce overall power consumption).
5 _{All functional non-supply pins except RESET are internally clamped to VSS and VDD.}
6 _{Input must be current limited to the value specified. To determine the value of the required current-limiting resistor, calculate}
resistance values for positive and negative clamp voltages, then use the larger of the two values.
7 _{The RESET pin does not have a clamp diode to VDD. Do not drive this pin above VDD.}
8 _{Maximum is highest voltage that POR is guaranteed.}
9 _{Simulated, not tested.}
10 _{Factory trimmed at VDD = 5.0 V, Temp = 25°C.}
2
150˚C
25˚C
–40˚C
1.5
1
0.5
Max 1.5V@20mA
1.0
150˚C
25˚C
–40˚C
0.8
0.6
0.4
0.2
Max 0.8V@5mA
0
0
5
10
15
20
25
I_OL (mA)
a) V_DD = 5V, High Drive
0
0
2
4
6
8
10
I_OL (mA)
b) V_DD = 3V, High Drive
Figure A-1. Typical V_OL vs I_OL, High Drive Strength
MC9S08SG32 Data Sheet, Rev. 7
Freescale Semiconductor
297