54AC14 Hex Inverter with Schmitt Trigger Input
July 1998
54AC14
Hex Inverter with Schmitt Trigger Input
General Description
The ’AC14 contains six inverter gates each with a Schmitt
trigger input. The ’AC14 contains six logic inverters which ac-
cept standard CMOS input signals and provide standard
CMOS output levels. They are capable of transforming
slowly changing input signals into sharply defined, jitter-free
output signals. In addition, they have a greater noise margin
than conventional inverters.
The ’AC14 has hysteresis between the positive-going and
negative-going input thresholds (typically 1.0V) which is de-
termined internally by transistor ratios and is essentially in-
sensitive to temperature and supply voltage variations.
Features
n
I
CC
reduced by 50%
n
Outputs source/sink 24 mA
n
Standard Military Drawing (SMD)
— ’AC14: 5962-87624
Logic Symbol
IEEE/IEC
DS100263-1
Function Table
Input
A
L
H
Output
O
H
L
FACT
™
is a trademark of Fairchild Semiconductor Corporation.
© 1998 National Semiconductor Corporation
DS100263
www.national.com
NSC [ NATIONAL SEMICONDUCTOR ]
