MC908QL4 FREESCALE [Freescale Semiconductor, Inc], MC908QL4 Datasheet - Page 208

• Manufacturer Part Number: MC908QL4
• Description: M68HC08 Microcontrollers
• Manufacturer: FREESCALE [Freescale Semiconductor, Inc]

Electrical Specifications
208
Input hysteresis
DC injection current
Ports Hi-Z leakage current
Capacitance
POR rearm voltage
POR rise time ramp rate
Monitor mode entry voltage
Pullup resistors
Pulldown resistors
Low-voltage inhibit reset, trip falling voltage
Low-voltage inhibit reset, trip rising voltage
Low-voltage inhibit reset/recover hysteresis
1. V
2. Typical values reflect average measurements at midpoint of voltage range, 25°C only.
3. This parameter is characterized and not tested on each device.
4. All functional non-supply pins are internally clamped to V
5. Input must be current limited to the value specified. To determine the value of the required current-limiting resistor,
6. Power supply must maintain regulation within operating V
7. If minimum V
8. R
9. R
Single pin limit
Total MCU limit, includes sum of all stressed pins
Ports (as input)
PTA0–PTA5, PTB0–PTB7
PTA0–PTA5
V
V
V
V
calculate resistance values for positive and negative clamp voltages, then use the larger of the two values.
conditions. If positive injection current (V
result in external power supply going out of regulation. Ensure external V
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).
V
in
in
in
in
DD
DD
PU
PD
> V
< V
> V
< V
is measured at V
is measured at V
= 3.0 to 3.6 Vdc, V
is reached.
DD
SS
DD
SS
(8)
(3)
DD
(3)
(9)
Characteristic
(3) (4) (5) (6)
is not reached before the internal POR reset is released, the LVI will hold the part in reset until minimum
(3)(7)
DD
DD
SS
(3)
= 3.3 V. Pullup resistors only available when PTAPUEx is enabled with KBIPx = 0.
= 3.3 V, Pulldown resistors only available when PTAPUEx is enabled with KBIPx =1.
= 0 Vdc, T
(1)
A
= T
MC68HC908QL4 Data Sheet, Rev. 7
in
L
> V
to T
DD
H
) is greater than I
, unless otherwise noted.
Symbol
SS
DD
V
V
V
R
V
V
V
R
R
TRIPF
TRIPR
C
HYS
I
I
POR
POR
HYS
TST
and V
range during instantaneous and operating maximum current
IC
IL
PU
PD
IN
DD
DD
, the injection current may flow out of V
.
0.06 x V
V
DD
DD
0.035
0.75
2.65
2.75
Min
16
16
—
—
load will shunt current greater than maximum
0
0
0
0
0
+ 2.5
DD
Typ
100
2.8
2.9
26
26
—
—
—
—
—
—
—
—
—
—
(2)
Freescale Semiconductor
V
DD
Max
–0.2
3.10
3.0
25
–5
±1
36
36
—
—
—
—
2
8
+ 4.0
DD
and could
V/ms
Unit
mA
mV
kΩ
kΩ
μA
pF
V
V
V
V
V