MC9S08QG8_09 Datasheet, PDF (272/314 Pages) Freescale Semiconductor, Inc – HCS08 Microcontrollers

Appendix A Electrical Characteristics
Table A-6. DC Characteristics (continued)
Parameter
Symbol
Min
Typical
Max
Unit
Internal pulldown resistor (KBI)
Output high voltage — low drive (PTxDSn = 0)
I_OH = –2 mA (V_DD ≥ 1.8 V)
Output high voltage — high drive (PTxDSn = 1)
I_OH = –10 mA (V_DD ≥ 2.7 V)
I_OH = –6 mA (V_DD ≥ 2.3 V)
I_OH = –3 mA (V_DD ≥ 1.8 V)
Maximum total I_OH for all port pins
Output low voltage — low drive (PTxDSn = 0)
I_OL = 2.0 mA (V_DD ≥ 1.8 V)
Output low voltage — high drive (PTxDSn = 1)
I_OL = 10.0 mA (V_DD ≥ 2.7 V)
I_OL = 6 mA (V_DD ≥ 2.3 V)
I_OL = 3 mA (V_DD ≥ 1.8 V)
Maximum total I_OL for all port pins
DC injection current ^{2, 5, 6, 7}
V_IN < V_SS, V_IN > V_DD
Single pin limit
Total MCU limit, includes sum of all stressed pins
R_PD
V_OH
| I_OHT |
V_OL
I_OLT
17.5
V_DD – 0.5
V_DD – 0.5
—
—
—
—
—
—
I_IC
–0.2
–5
52.5
kΩ
—
V
—
—
—
60
mA
0.5
V
0.5
0.5
0.5
60
mA
0.2
mA
5
mA
Input capacitance (all non-supply pins)
C_In
—
7
pF
1 _{RAM will retain data down to POR voltage. RAM data not guaranteed to be valid following a POR.}
2 _{This parameter is characterized and not tested on each device.}
3 _{Measurement condition for pull resistors: VIn = VSS for pullup and VIn = VDD for pulldown.}
4 _{PTA5/IRQ/TCLK/RESET pullup resistor may not pullup to the specified minimum VIH. However, all ports are functionally tested}
to guarantee that a logic 1 will be read on any port input when the pullup is enabled and no DC load is present on the pin.
5 _{All functional non-supply pins 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 _{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).
MC9S08QG8 and MC9S08QG4 Data Sheet, Rev. 5
270
Freescale Semiconductor