Philips Semiconductors
Product specification
Hex inverting Schmitt trigger
TRANSFER CHARACTERISTICS
Type 74HC
At recommended operating conditions; voltages are referenced to GND (ground = 0 V).
TEST CONDITIONS
SYMBOL
PARAMETER
WAVEFORMS
T
amb
= 25
°C;
note 1
V
T+
positive-going threshold
Figs 7 and 8
2.0
4.5
6.0
V
T−
negative-going threshold
Figs 7 and 8
2.0
4.5
6.0
V
H
hysteresis (V
T+
−
V
T−
)
Figs 7 and 8
2.0
4.5
6.0
T
amb
=
−40
to +85
°C
V
T+
positive-going threshold
Figs 7 and 8
2.0
4.5
6.0
V
T−
negative-going threshold
Figs 7 and 8
2.0
4.5
6.0
V
H
hysteresis (V
T+
−
V
T−
)
Figs 7 and 8
2.0
4.5
6.0
T
amb
=
−40
to +125
°C
V
T+
positive-going threshold
Figs 7 and 8
2.0
4.5
6.0
V
T−
negative-going threshold
Figs 7 and 8
2.0
4.5
6.0
V
H
hysteresis (V
T+
−
V
T−
)
Figs 7 and 8
2.0
4.5
6.0
Note
1. All typical values are measured at T
amb
= 25
°C.
0.7
1.7
2.1
0.30
0.90
1.2
0.2
0.4
0.6
0.7
1.7
2.1
0.3
0.90
1.20
0.2
0.4
0.6
0.7
1.7
2.1
0.3
0.9
1.2
0.2
0.4
0.6
V
CC
(V)
MIN.
74HC14; 74HCT14
TYP.
MAX.
UNIT
1.18
2.38
3.14
0.52
1.40
1.89
0.66
0.98
1.25
−
−
−
−
−
−
−
−
−
−
−
−
−
−
−
−
−
−
1.5
3.15
4.2
0.90
2.00
2.60
1.0
1.4
1.6
V
V
V
V
V
V
V
V
V
1.5
3.15
4.2
0.90
2.00
2.60
1.0
1.4
1.6
V
V
V
V
V
V
V
V
V
1.5
3.15
4.2
0.90
2.00
2.60
1.0
1.4
1.6
V
V
V
V
V
V
V
V
V
2003 Oct 30
10
PHILIPS [ NXP SEMICONDUCTORS ]
