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MC68HC908QY4CDW Datasheet, PDF (155/184 Pages) Freescale Semiconductor, Inc – Microcontrollers
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16.9 3-V DC Electrical Characteristics
3-V DC Electrical Characteristics
Characteristic(1)
Symbol
Min
Typ(2)
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
Maximum combined IOH (all I/O pins)
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
Maximum combined IOL (all I/O pins)
Input high voltage
PTA0–PTA5, PTB0–PTB7
VOH
VDD – 0.3
VDD – 1.0
—
—
—
—
V
VDD – 0.8
—
—
IOHT
—
—
50
mA
VOL
—
—
—
0.3
—
1.0
V
—
—
0.8
IOLT
—
—
50
mA
VIH
0.7 x VDD
—
VDD
V
Input low voltage
PTA0–PTA5, PTB0–PTB7
VIL
VSS
—
0.3 x VDD
V
Input hysteresis
DC injection current, all ports
Total dc current injection (sum of all I/O)
Ports Hi-Z leakage current
VHYS
0.06 x VDD
—
—
V
IINJ
–2
—
+2
mA
IINJTOT
–25
—
+25
mA
IIL
–1
±0.1
+1
μA
Capacitance
Ports (as input)
Ports (as input)
POR rearm voltage(3)
CIN
COUT
—
—
—
—
12
8
pF
VPOR
0
—
100
mV
POR rise time ramp rate(4)
RPOR
0.035
—
—
V/ms
Monitor mode entry voltage
Pullup resistors(5)
PTA0–PTA5, PTB0–PTB7
VTST
RPU
VDD + 2.5
16
—
VDD + 4.0
V
26
36
kΩ
Low-voltage inhibit reset, trip falling voltage
Low-voltage inhibit reset, trip rising voltage
Low-voltage inhibit reset/recover hysteresis
VTRIPF
2.40
2.55
2.70
V
VTRIPR
2.50
2.65
2.80
V
VHYS
—
60
—
mV
1. VDD = 2.7 to 3.3 Vdc, VSS = 0 Vdc, TA = TL to TH, unless otherwise noted.
2. Typical values reflect average measurements at midpoint of voltage range, 25•C only.
3. Maximum is highest voltage that POR is guaranteed.
4. 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.
5. RPU are measured at VDD = 3.0 V
MC68HC908QY/QT Family Data Sheet, Rev. 6
Freescale Semiconductor
155
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