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MC908QY8CDWE Datasheet, PDF (214/232 Pages) Freescale Semiconductor, Inc – Addendum to MC68HC908QB8, rev. 3
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Electrical Specifications
18.8 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
IOHL
—
—
50
mA
VIH
0.7 x VDD
—
VDD
V
Input low voltage
PTA0–PTA5, PTB0–PTB7
Input hysteresis(3)
DC injection current, all ports(4)
Total dc current injection (sum of all I/O)(4)
Ports Hi-Z leakage current
Capacitance
Ports (as input)(3)
VIL
VSS
—
0.3 x VDD
V
VHYS
0.06 x VDD
—
—
V
IINJ
–2
—
+2
mA
IINJTOT
–25
—
+25
mA
IIL
–1
±0.1
+1
μA
CIN
—
—
8
pF
POR rearm voltage
POR rise time ramp rate(3)(5)
Monitor mode entry voltage (3)
Pullup resistors(6)
PTA0–PTA5, PTB0–PTB7
Pulldown resistors(7)
PTA0–PTA5
VPOR
RPOR
VTST
RPU
RPD
750
0.035
VDD + 2.5
16
16
—
—
mV
—
—
V/ms
—
VDD + 4.0
V
26
36
kΩ
26
36
kΩ
Low-voltage inhibit reset, trip falling voltage
Low-voltage inhibit reset, trip rising voltage(6)
Low-voltage inhibit reset/recover hysteresis
VTRIPF
2.40
2.55
2.70
V
VTRIPR
2.475
2.625
2.775
V
VHYS
—
75
—
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. Typical values are for reference only
and are not tested in production.
3. Values are based on characterization results, not tested in production.
4. Guaranteed by design, not tested in production.
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.
6. RPU is measured at VDD = 3.0 V
7. RPD is measured at VDD = 3.0 V, Pulldown resistors only available when KBIx is enabled with KBIxPOL =1.
MC68HC908QB8 Data Sheet, Rev. 3
212
Freescale Semiconductor
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