Datasheet

Appendix A Electrical Characteristics
MC9S08GB60A Data Sheet, Rev. 2
Freescale Semiconductor 265
Figure A-1. Pullup and Pulldown Typical Resistor Values (V
DD
= 3.0 V)
Figure A-2. Typical Low-Side Driver (Sink) Characteristics (Ports C and F)
dc injection current
4, 5, 6, 7, 8
V
IN
< V
SS
, V
IN
> V
DD
Single pin limit
Total MCU limit, includes sum of all stressed pins
|I
IC
|
—
—
0.2
5
mA
mA
Input capacitance (all non-supply pins)
(2)
C
In
—7pF
1
Typicals are measured at 25°C.
2
This parameter is characterized and not tested on each device.
3
Measurement condition for pull resistors: V
In
= V
SS
for pullup and V
In
= V
DD
for pulldown.
4
Power supply must maintain regulation within operating V
DD
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 are internally clamped to V
SS
and V
DD
.
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
This parameter is characterized and not tested on each device.
8
IRQ does not have a clamp diode to V
DD
. Do not drive IRQ above V
DD
.
Table A-4. DC Characteristics (Sheet 3 of 3)
(Temperature Range = –40 to 85°C Ambient)
Parameter Symbol Min Typical
1
Max Unit
PULLUP RESISTOR TYPICALS
V
DD
(V)
PULL-UP RESISTOR (k
Ω
)
20
25
30
35
40
1.8 2 2.2 2.4 2.6 2.8 3 3.2 3.4 3.6
25 ° C
85 ° C
–40 ° C
PULLDOWN RESISTOR TYPICALS
V
DD
(V)
PULLDOWN RESISTANCE (k
Ω
)
20
25
30
35
40
1.8 2.3 2.8 3.3
25 ° C
85 ° C
–40 ° C
3.6
TYPICAL V
OL
VS I
OL
AT V
DD
= 3.0 V
I
OL
(mA)
V
OL
(V)
0
0.2
0.4
0.6
0.8
1
0102030
TYPICAL V
OL
VS V
DD
V
DD
(V)
V
OL
(V)
0
0.1
0.2
0.3
0.4
1234
I
OL
= 6 mA
I
OL
= 3 mA
I
OL
= 10 mA
25 ° C
85 ° C
–40 ° C
25°C
85°C
–40°C