
Electrical Specifications
MC68HC908QYA/QTA Family Data Sheet, Rev. 3
160
Freescale Semiconductor
16.8 3-V DC Electrical Characteristics
Characteristic(1)
1. VDD = 2.7 to 3.3 Vdc, VSS = 0 Vdc, TA = TL to TH, unless otherwise noted.
Symbol
Min
Typ(2)
2. Typical values reflect average measurements at midpoint of voltage range, 25C only.
Max
Unit
Output high voltage
ILoad = –0.6 mA, all I/O pins
ILoad = –4.0 mA, all I/O pins
ILoad = –10.0 mA, PTA0, PTA1, PTA3–PTA5 only
VOH
VDD–0.3
VDD–1.0
VDD–0.8
—
V
Maximum combined IOH (all I/O pins)
IOHT
——
50
mA
Output low voltage
ILoad = 0.5 mA, all I/O pins
ILoad = 6.0 mA, all I/O pins
ILoad = 10.0 mA, PTA0, PTA1, PTA3–PTA5 only
OL
—
0.3
1.0
0.8
V
Maximum combined IOL (all I/O pins)
IOHL
——
50
mA
Input high voltage
PTA0–PTA5, PTB0–PTB7
VIH
0.7 x VDD
—
VDD
V
Input low voltage
PTA0–PTA5, PTB0–PTB7
VIL
VSS
—
0.3 x VDD
V
Input hysteresis(3)
3. Values are based on characterization results, not tested in production.
VHYS
0.06 x VDD
——
V
DC injection current, all ports(4)
4. Guaranteed by design, not tested in production.
IINJ
–2
—
+2
mA
Total dc current injection (sum of all
I/O)(4)IINJTOT
–25
—
+25
mA
Ports Hi-Z leakage current
IIL
–1
±0.1
+1
μA
Capacitance
CIN
——
8
pF
POR rearm voltage
VPOR
750
—
mV
5. If minimum VDD is not reached before the internal POR reset is released, the LVI will hold the part in reset until minimum
VDD is reached.
RPOR
0.035
—
V/ms
Monitor mode entry voltage
(3)VTST
VDD + 2.5
—
VDD + 4.0
V
Pullup resistors(6)
PTA0–PTA5, PTB0–PTB7
6. RPU is measured at VDD = 3.0 V
RPU
16
26
36
k
Ω
Pulldown resistors(7)
PTA0–PTA5
7. RPD is measured at VDD = 3.0 V, Pulldown resistors only available when KBIx is enabled with KBIxPOL =1.
RPD
16
26
36
k
Ω
Low-voltage inhibit reset, trip falling voltage
VTRIPF
2.40
2.55
2.70
V
Low-voltage inhibit reset, trip rising voltage(6)
VTRIPR
2.475
2.625
2.775
V
Low-voltage inhibit reset/recover hysteresis
VHYS
—75
—
mV