Datasheet

Electrical Characteristics
MC9S08FL16 Series Data Sheet, Rev. 3
Freescale Semiconductor 13
12 C
DC injection
current
3, 4,
5
Single pin limit
I
IC
V
IN
< V
SS
, V
IN
> V
DD
–0.2 — 0.2 mA
Total MCU limit, includes
sum of all stressed pins
–5 — 5 mA
13 C Input capacitance, all pins C
In
———8pF
14 C RAM retention voltage V
RAM
——0.61.0V
15 C POR re-arm voltage
6
V
POR
— 0.9 1.4 2.0 V
16 D POR re-arm time t
POR
—10——s
17 P
Low-voltage detection threshold —
high range
V
DD
falling
V
DD
rising
V
LVD 1
7
—
3.9
4.0
4.0
4.1
4.1
4.2
V
18
C
Low-voltage warning threshold —
high range 1
V
DD
falling
V
DD
rising
V
LVW 3
—
4.5
4.6
4.6
4.7
4.7
4.8
V
P
Low-voltage warning threshold —
high range 0
V
DD
falling
V
DD
rising
V
LVW 2
7
—
4.2
4.3
4.3
4.4
4.4
4.5
V
19 C
Low-voltage inhibit reset/recover
hysteresis
V
hys
— — 100 — mV
20 C Bandgap voltage reference
8
V
BG
— — 1.21 — V
1
Typical values are measured at 25 C. Characterized, not tested.
2
The specified resistor value is the actual value internal to the device. The pullup or pulldown value may appear higher when
measured externally on the pin.
3
All functional non-supply pins, except for PTA5 are internally clamped to V
SS
and V
DD
.
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 V
DD
range during instantaneous and operating maximum current
conditions. If the 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 that 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).
6
Maximum is highest voltage that POR is guaranteed.
7
When V
DD
is in between the minimun of this parameter and 4.5 V, the CPU, RAM, LVD and flash are full functional, but the
performance of other modules may be reduced.
8
Factory trimmed at V
DD
= 5.0 V, Temp = 25 C
Table 7. DC Characteristics (continued)
Num C Characteristic Symbol Condition Min. Typical
1
Max. Unit