74AHCT14D Ver la hoja de datos (PDF) - Philips Electronics
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74AHCT14D Datasheet PDF : 16 Pages
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Philips Semiconductors
Hex inverting Schmitt trigger
Product specification
74AHC14; 74AHCT14
DC CHARACTERISTICS
Type 74AHC14
Over recommended operating conditions; voltage are referenced to GND (ground = 0 V).
TEST CONDITIONS
Tamb (°C)
SYMBOL PARAMETER
OTHER
25
−40 to +85 −40 to +125 UNIT
VCC (V)
MIN. TYP. MAX. MIN. MAX. MIN. MAX.
VT+
positive going
threshold
3.0
−−
2.2 − 2.2 − 2.2 V
4.5
−−
3.15 − 3.15 − 3.15
5.5
−−
3.85 − 3.85 − 3.85
VT−
negative going
threshold
3.0
0.9 −
−
0.9 −
0.9 −
V
4.5
1.35 −
−
1.35 −
1.35 −
5.5
1.65 −
−
1.65 −
1.65 −
VH
hysteresis
(VT+ − VT−)
3.0
0.3 −
1.2 0.3 1.2 0.25 1.2 V
4.5
0.4 −
1.4 0.4 1.4 0.35 1.4
5.5
0.5 −
1.6 0.5 1.6 0.45 1.6
VOH
HIGH-level output VI = VIH or VIL;
2.0
1.9 2.0 −
1.9 −
1.9 −
V
voltage; all outputs IO = −50 µA
3.0
2.9 3.0 −
2.9 −
2.9 −
4.5
4.4 4.5 −
4.4 −
4.4 −
HIGH-level output VI = VIH or VIL;
3.0
voltage
IO = −4.0 mA
2.58 −
−
2.48 −
2.40 −
V
VI = VIH or VIL;
4.5
IO = −8.0 mA
3.94 −
−
3.8 −
3.70 −
VOL
LOW-level output VI = VIH or VIL;
2.0
−0
0.1 − 0.1 − 0.1 V
voltage; all outputs IO = 50 µA
3.0
−0
0.1 − 0.1 − 0.1
4.5
−0
0.1 − 0.1 − 0.1
LOW-level output VI = VIH or VIL;
3.0
voltage
IO = 4 mA
−−
0.36 − 0.44 − 0.55 V
VI = VIH or VIL;
4.5
IO = 8 mA
−−
0.36 − 0.44 − 0.55
II
input leakage
VI = VCC or GND 5.5
−−
0.1 − 1.0 − 2.0 µA
current
ICC
quiescent supply VI = VCC or GND; 5.5
−−
2.0 − 20 − 40 µA
current
IO = 0
CI
input capacitance
−3
10 − 10 − 10 pF
1999 Sep 27
5
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