Datasheet

Electrical Specifications
3-V DC Electrical Characteristics
MC68HC908QY4•MC68HC908QT4•MC68HC908QY2•MC68HC908QT2•MC68HC908QY1•MC68HC908QT1
MOTOROLA Electrical Specifications 217
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18.9 3-V DC Electrical Characteristics
Characteristic
(1)
Symbol Min
Typ
(2)
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
= –10.0 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
= 10.0 mA, PTA0-PTA5 only
V
OL
—
—
—
—
—
—
0.3
1.0
0.6
V
Input high voltage
PTA0–PTA5, PTB0–PTB7, RST
, IRQ, OSC1
V
IH
0.7 x V
DD
—
V
DD
V
Input low voltage
PTA0–PTA5, PTB0–PTB7, RST
, IRQ, OSC1
V
IL
V
SS
—
0.3 x V
DD
V
DC injection current, all ports
I
INJ
–2 — +2 mA
Total dc current injection (sum of all I/O)
I
INJTOT
–25 — +25 mA
V
DD
supply current
Run, f
OP
= 2 MHz
(3)
Wait, f
OP
= 2 MHz
(4)
Stop
(5)
,–40°C to 85°C
I
DD
—
—
—
5
1
0.1
8
2.5
5
mA
mA
µA
Digital I/O ports Hi-Z leakage current
I
IL
——± 10 µA
Input leakage current
I
IN
——± 1 µA
Capacitance
Ports (as input or output)
C
OUT
C
IN
—
—
—
—
12
8
pF
POR rearm voltage
(6)
V
POR
0 — 100 mV
POR rise time ramp rate
(7)
R
POR
0.035 ——V/ms
Monitor mode entry voltage
V
TST
V
DD
+ 2.5
—
V
DD
+ 4.0
V
Pullup resistors
(8)
RST, IRQ, PTA0–PTA5, PTB0–PTB7
R
PU
16 26 36
k
Ω
Low-voltage inhibit reset, trip falling voltage
V
TRIPF
2.40 2.55 2.70 V
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