74AHC14 View Datasheet(PDF) - Philips Electronics
Part Name
Description
MFG CO.
74AHC14 Datasheet PDF : 16 Pages
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Philips Semiconductors
Hex inverting Schmitt trigger
Product specification
74AHC14; 74AHCT14
Type 74AHCT14
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
VT−
negative going
threshold
4.5
−−
1.9 − 1.9 − 1.9 V
5.5
−−
2.1 − 2.1 − 2.1 V
4.5
0.5 −
−
0.5 −
0.5 −
V
5.5
0.6 −
−
0.6 −
0.6 −
V
VH
hysteresis
(VT+ − VT−)
4.5
0.4 −
1.4 0.4 1.4 0.35 1.4 V
5.5
0.4 −
1.5 0.4 1.5 0.35 1.5 V
VOH
HIGH-level output VI = VIH or VIL; 4.5
voltage; all outputs IO = −50 µA
HIGH-level output VI = VIH or VIL; 4.5
voltage
IO = −8.0 mA
VOL
LOW-level output VI = VIH or VIL; 4.5
voltage; all outputs IO = 50 µA
LOW-level output VI = VIH or VIL; 4.5
voltage
IO = 8 mA
II
input leakage
VI = VCC or GND 5.5
current
4.4 4.5 −
4.4 −
4.4 −
V
3.94 −
−
3.8 −
3.7 −
V
−0
0.1 − 0.1 − 0.1 V
−−
0.36 − 0.44 − 0.55 V
−−
0.1 − 1.0 − 2.0 µA
ICC
∆ICC
CI
quiescent supply VI = VCC or GND; 5.5
current
IO = 0
−−
additional
VI = VCC − 2.1 V 4.5 to 5.5 − −
quiescent supply other inputs at
current per input VCC or GND;
pin
IO = 0
input capacitance
−3
2.0 −
1.35 −
20 −
1.5 −
40 µA
1.5 mA
10 − 10 − 10 pF
1999 Sep 27
6
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