MC9S08SF4 Datasheet, PDF (10/32 Pages) Freescale Semiconductor, Inc – Technical Data

DC Characteristics
2 _{Measurement condition for pull resistors: VIn = VSS for pullup and VIn = VDD for pulldown.}
3 _{All functional non-supply pins are internally clamped to VSS and VDD.}
4 _{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.
5 _{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).
Typical Low-Side Driver (LDS) Characteristics
V_DD = 5 V, PORTA, V_OL Vs I_OL
6
5
4
3
2
1
0
1 2 3 4 5 6 7 8 9 10 11 12 13 14
I_OL(mA)
Figure 4. Typical Low-Side Driver (Sink) Characteristics
Low Drive (PTxDSn = 0), V_DD = 5.0 V, V_OL vs. I_OL
T=-40C
T=0C
T=25C
T=85C
T=105C
T=125C
MC9S08SF4 Series MCU Data Sheet, Rev. 2
10
Freescale Semiconductor