Datasheet

© 1983 Fairchild Semiconductor Corporation www.fairchildsemi.com
MM74HCT14 • Rev. 1.4.2 4
MM74HCT14 — Hex Inverting Schmitt Trigger
DC Electrical Characteristics
Symbol Parameter Conditions V
CC
T
A
=+25°C
T
A
=-40°C
to +85°C
Units
Typ. Guaranteed Limits
V
T+
Positive-Going
Threshold Voltage
Minimum
4.5 1.5 1.2 1.2
V
5.5 1.7 1.4 1.4
Maximum
4.5 1.5 1.9 1.9
5.5 1.7 2.1 2.1
V
T-
Negative-Going
Threshold Voltage
Minimum
4.5 0.9 0.5 0.5
V
5.5 1.0 0.6 0.6
Maximum
4.5 0.9 1.2 1.2
5.5 1.0 1.4 1.4
V
H
Hysteresis Voltage
Minimum
4.5 0.6 0.4 0.4
V
5.5 0.7 0.4 0.4
Maximum
4.5 0.6 1.4 1.4
5.5 0.7 1.5 1.5
V
OH
Minimum HIGH Level
Output Voltage
V
IN
=V
IL
, | I
OUT
| = 20µA 4.5 V
CC
V
CC
– 0.1 V
CC
– 0.1
V V
IN
=V
IL
, | I
OUT
| = 4.0mA 4.5 4.20 3.98 3.84
V
IN
=V
IL
, | I
OUT
| = 4.8mA 5.5 5.20 4.98 4.98
V
OL
Maximum LOW Level
Voltage
V
IN
=V
IL
, | I
OUT
| = 20µA 4.5 0 0.1 0.1
V V
IN
=V
IL
, | I
OUT
| = 4.0mA 4.5 0.2 0.26 0.33
V
IN
=V
IL
, | I
OUT
| = 4.8mA 5.5 0.2 0.26 0.33
I
IN
Maximum Input Current V
IN
= V
CC
or GND, V
IH
or V
IL
5.5 ±0.1 ±1.0 µA
I
CC
Maximum Quiescent
Supply Current
V
IN
= V
CC
or GND, I
OUT
= 0µA
5.5
1.0 10.0 µA
V
IN
= 2.4V or 0.5V 2.4 2.4 mA