mc9s08qg4 Freescale Semiconductor, Inc, mc9s08qg4 Datasheet - Page 272

• Manufacturer Part Number: mc9s08qg4
• Description: Hcs08 Microcontrollers Microcontroller Family
• Manufacturer: Freescale Semiconductor, Inc

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Appendix A Electrical Characteristics
272
Internal pulldown resistor (KBI)
Output high voltage — low drive (PTxDSn = 0)
Output high voltage — high drive (PTxDSn = 1)
Maximum total I
Output low voltage — low drive (PTxDSn = 0)
Output low voltage — high drive (PTxDSn = 1)
Maximum total I
DC injection current
Input capacitance (all non-supply pins)
RAM will retain data down to POR voltage. RAM data not guaranteed to be valid following a POR.
This parameter is characterized and not tested on each device.
Measurement condition for pull resistors: V
PTA5/IRQ/TCLK/RESET pullup resistor may not pullup to the specified minimum V
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.
All functional non-supply pins are internally clamped to V
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.
Power supply must maintain regulation within operating V
conditions. If positive injection current (V
in external power supply going out of regulation. Ensure external V
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).
I
I
I
I
I
I
Single pin limit
Total MCU limit, includes sum of all stressed pins
I
OH
OH
OH
OL
OL
OL
I
OL
OH
V
= 2.0 mA (V
= 6 mA (V
= 3 mA (V
= –10 mA (V
= –6 mA (V
= –3 mA (V
= 10.0 mA (V
= –2 mA (V
IN
< V
SS
, V
OH
OL
DD
DD
DD
DD
DD
IN
DD
for all port pins
DD
for all port pins
≥ 2.3 V)
≥ 1.8 V)
DD
> V
2, 5, 6, 7
≥ 2.3 V)
≥ 1.8 V)
≥ 1.8 V)
≥ 1.8 V)
≥ 2.7 V)
≥ 2.7 V)
DD
Parameter
MC9S08QG8 and MC9S08QG4 Data Sheet, Rev. 4
Table A-6. DC Characteristics (continued)
In
> V
In
= V
DD
) is greater than I
SS
for pullup and V
SS
DD
and V
range during instantaneous and operating maximum current
Symbol
| I
DD
R
V
I
V
DD
OHT
C
OLT
I
DD
OH
OL
IC
, the injection current may flow out of V
PD
In
In
.
= V
load will shunt current greater than maximum injection
|
DD
for pulldown.
V
V
DD
DD
17.5
–0.2
Min
–5
—
—
—
—
—
—
—
IH
– 0.5
– 0.5
. However, all ports are functionally tested
Typical
Freescale Semiconductor
DD
Max
52.5
0.5
0.5
0.5
0.5
0.2
60
60
—
—
—
—
5
7
and could result
Unit
mA
mA
mA
mA
kΩ
pF
V
V