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