Datasheet

5-V DC Electrical Characteristics
MC68HC908QYA/QTA Family Data Sheet, Rev. 3
Freescale Semiconductor 157
16.5 5-V DC Electrical Characteristics
Characteristic
(1)
1. V
DD
= 4.5 to 5.5 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
= –2.0 mA, all I/O pins
I
Load
= –10.0 mA, all I/O pins
I
Load
= –15.0 mA, PTA0, PTA1, PTA3–PTA5 only
V
OH
V
DD
–0.4
V
DD
–1.5
V
DD
–0.8
—
—
—
—
—
—
V
Maximum combined I
OH
(all I/O pins) I
OHT
——50mA
Output low voltage
I
Load
= 1.6 mA, all I/O pins
I
Load
= 10.0 mA, all I/O pins
I
Load
= 15.0 mA, PTA0, PTA1, PTA3–PTA5 only
V
OL
—
—
—
—
—
—
0.4
1.5
0.8
V
Maximum combined I
OL
(all I/O pins) I
OHL
——50mA
Input high voltage
PTA0–PTA5, PTB0–PTB7
V
IH
0.7 x V
DD
—
V
DD
V
Input low voltage
PTA0–PTA5, PTB0–PTB7
V
IL
V
SS
—
0.3 x V
DD
V
Input hysteresis
(3)
3. Values are based on characterization results, not tested in production.
V
HYS
0.06 x V
DD
——V
DC injection current, all ports
(4)
4. Guaranteed by design, not tested in production.
I
INJ
–2 — +2 mA
Total dc current injection (sum of all I/O)
(4)
I
INJTOT
–25 — +25 mA
Ports Hi-Z leakage current
I
IL
–1 ±0.1 +1 μA
Capacitance
Ports (as input)
(3)
C
IN
——8pF
POR rearm voltage
V
POR
750 — — mV
POR rise time ramp rate
(3)(5)
5. If minimum V
DD
is not reached before the internal POR reset is released, the LVI will hold the part in reset until minimum
V
DD
is reached.
R
POR
0.035 — — V/ms
Monitor mode entry voltage
(3)
V
TST
V
DD + 2.5
—9.1V
Pullup resistors
(6)
PTA0–PTA5, PTB0–PTB7
6. R
PU
is measured at V
DD
= 5.0 V.
R
PU
16 26 36 kΩ
Pulldown resistors
(7)
PTA0–PTA5
7. R
PD
is measured at V
DD
= 5.0 V, Pulldown resistors only available when KBIx is enabled with KBIxPOL =1.
R
PD
16 26 36 kΩ
Low-voltage inhibit reset, trip falling voltage
V
TRIPF
3.90 4.20 4.50 V
Low-voltage inhibit reset, trip rising voltage
V
TRIPR
4.00 4.30 4.60 V
Low-voltage inhibit reset/recover hysteresis
V
HYS
— 100 — mV