74HCT14 Datasheet, PDF (11/23 Pages) NXP Semiconductors – Hex inverting Schmitt trigger

Philips Semiconductors
Hex inverting Schmitt trigger
Product specification
74HC14; 74HCT14
Family 74HCT
At recommended operating conditions: voltages are referenced to GND (ground = 0 V)
SYMBOL
PARAMETER
T_amb = 25 °C; note 1
V_T+
positive-going threshold
V_T−
negative-going threshold
V_H
hysteresis (V_T+ − V_T−)
T_amb = −40 to +85 °C
V_T+
positive-going threshold
V_T−
negative-going threshold
V_H
hysteresis (V_T+ − V_T−)
T_amb = −40 to +125 °C
V_T+
positive-going threshold
V_T−
negative-going threshold
V_H
hysteresis (V_T+ − V_T−)
TEST CONDITIONS
MIN.
WAVEFORMS V_CC (V)
TYP.
MAX. UNIT
Figs 7 and 8
Figs 7 and 8
Figs 7 and 8
4.5
1.2
1.41 1.9
V
5.5
1.4
1.59 2.1
V
4.5
0.5
0.85 1.2
V
5.5
0.6
0.99 1.4
V
4.5
0.4
0.56 −
V
5.5
0.4
0.60 −
V
Figs 7 and 8
Figs 7 and 8
Figs 7 and 8
4.5
1.2
−
5.5
1.4
−
4.5
0.5
−
5.5
0.6
−
4.5
0.4
−
5.5
0.4
−
1.9
V
2.1
V
1.2
V
1.4
V
−
V
−
V
Figs 7 and 8
Figs 7 and 8
Figs 7 and 8
4.5
1.2
−
5.5
1.4
−
4.5
0.5
−
5.5
0.6
−
4.5
0.4
−
5.5
0.4
−
1.9
V
2.1
V
1.2
V
1.4
V
−
V
−
V
Note
1. All typical values are measured at T_amb = 25 °C.
2003 Oct 30
11