Datasheet

MC68HC908JL3E Family Data Sheet, Rev. 4
160 Freescale Semiconductor
A.5.2 DC Electrical Characteristics
Table A-2. DC Electrical Characteristics
Characteristic
(1)
1. V
DD
= 2.4 Vdc, V
SS
= 0 Vdc, T
A
= T
L
to T
H
, 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
= –1.0mA)
PTA0–PTA6, PTB0–PTB7, PTD0–PTD7
V
OH
V
DD
–0.4
——V
Output low voltage (I
LOAD
= 0.8mA)
PTA6, PTB0–PTB7, PTD0, PTD1, PTD4, PTD5
V
OL
——0.4V
Output low voltage (I
LOAD
= 15mA)
PTD6, PTD7
V
OL
——0.5V
Input high voltage
PTA0–PTA6, PTB0–PTB7, PTD0–PTD7,
RST
, IRQ, OSC1
V
IH
0.7 × V
DD
—
V
DD
V
Input low voltage
PTA0–PTA6, PTB0–PTB7, PTD0–PTD7,
RST
, IRQ, OSC1
V
IL
V
SS
—
0.2 ×
V
DD
V
V
DD
supply current (V
DD
= 2.4V, f
OP
= 2MHz)
Run
(3)
Wait
(4)
Stop
(5)
0°C to 85°C
3. Run (operating) I
DD
measured using external square wave clock source. All inputs 0.2 V from rail. No dc loads. Less than
100 pF on all outputs. C
L
= 20 pF on OSC2. All ports configured as inputs. OSC2 capacitance linearly affects run I
DD
.
Measured with all modules enabled.
4. Wait I
DD
measured using external square wave clock source; all inputs 0.2 V from rail; no dc loads; less than 100 pF on
all outputs. C
L
= 20 pF on OSC2; all ports configured as inputs; OSC2 capacitance linearly affects wait I
DD
.
5. STOP I
DD
measured with OSC1 grounded, no port pins sourcing current. LVI is disabled.
I
DD
—
—
—
2
1
1
3.5
1.5
3
mA
mA
μA
Digital I/O ports Hi-Z leakage current
I
IL
——± 10 μA
Input current
I
IN
——± 1 μA
Capacitance
Ports (as input or output)
C
OUT
C
IN
—
—
—
—
12
8
pF
POR rearm voltage
(6)
6. Maximum is highest voltage that POR is guaranteed.
V
POR
0—100mV
POR rise time ramp rate
(7)
7. If minimum V
DD
is not reached before the internal POR reset is released, RST must be driven low externally until minimum
V
DD
is reached.
R
POR
0.02 — — V/ms
Pullup resistors
(8)
PTD6, PTD7
RST
, IRQ, PTA0–PTA6
8. R
PU1
and R
PU2
are measured at V
DD
= 5.0V
R
PU1
R
PU2
1.8
16
3.3
26
4.8
36
kΩ
kΩ