Datasheet

Electrical Specifications
MC68HC908KX8 • MC68HC908KX2 • MC68HC08KX8 Data Sheet, Rev. 2.1
186 Freescale Semiconductor
17.6 3.0-Vdc DC Electrical Characteristics
Characteristic
(1)
1. V
DD
= 3.3 to 2.7 Vdc, V
SS
= 0 Vdc, T
A
= –40°C to +125°C, unless otherwise noted
Symbol Min
Typ
(2)
2. Typical values reflect average measurements at midpoint of voltage range, 25°C only.
Max Unit
Output high voltage
I
Load
= –0.6 mA, all I/O pins
I
Load
= –4.0 mA, all I/O pins
I
Load
= –10 mA, PTA0–PTA4 only
V
OH
V
DD
–0.3
V
DD
–1.0
V
DD
–0.6
—
—
—
—
—
—
V
Output low voltage
I
Load
= 0.5 mA, all I/O pins
I
Load
= 6.0 mA, all I/O pins
I
Load
= 10 mA, PTA0–PTA4 only
V
OL
—
—
—
—
—
—
0.3
1.0
0.6
V
V
V
Input high voltage — all ports, IRQ1
V
IH
0.7 x V
DD
—
V
DD
+ 0.3
V
Input low voltage — all ports, IRQ1
V
IL
V
SS
—
0.3 x V
DD
V
V
DD
supply current
Run
(3), (4)
Wait
(4), (5)
Stop, 25°C
(6)
3. Run (operating) I
DD
measured using internal oscillator at its 16-MHz rate. V
DD
= 3.3 Vdc. All inputs 0.2 V from rail. No dc
loads. Less than 100 pF on all outputs. All ports configured as inputs. Measured with all modules enabled.
4. All measurements taken with LVI enabled.
5. Wait I
DD
measured using internal oscillator at its 1 MHz rate. All inputs 0.2 V from rail; no dc loads; less than 100 pF on all
outputs. All ports configured as inputs.
6. Stop I
DD
is measured with no port pins sourcing current; all modules are disabled.
I
DD
—
—
—
5
1
0.65
10
2.5
1.25
mA
mA
µA
I/O ports Hi-Z leakage current
(7)
7. Pullups and pulldowns are disabled.
I
IL
–10 — +10 µA
Input current
I
In
–10 — +10 µA
Capacitance
Ports (as input or output)
C
Out
C
In
—
—
—
—
12
8
pF
POR rearm voltage
(8)
8. Maximum is highest voltage that POR is guaranteed.
V
POR
0—100mV
POR reset voltage
(9)
9. Maximum is highest voltage that POR is possible.
V
POR
0700800mV
POR rise time ramp rate
R
POR
0.02 — — V/ms
Monitor mode entry voltage
V
TST
V
DD
+ 2.5
—
V
DD
+ 4.0
V
Low-voltage inhibit reset, trip falling voltage
V
TRIPF
2.45 2.60 2.70 V
Low-voltage inhibit reset, trip rising voltage
V
TRIPR
2.55 2.66 2.80 V
Low-voltage inhibit reset/recover hysteresis
V
HYS
—60—mV
Pullup resistor
PTA0–PTA4, IRQ1
R
PU
24 — 48 kΩ