54ACTQ14
Quiet Series Hex Inverter with Schmitt Trigger Input
General Description
The ’ACTQ14 contains six inverter gates each with a Schmitt
trigger input. They are capable of transforming slowly chang-
ing input signals into sharply defined, jitter-free output sig-
nals. In addition, they have a greater noise margin than con-
ventional inverters.
The ’ACTQ14 utilizes NSC Quiet Series Technology to guar-
antee quiet output switching and improve dynamic threshold
performance. FACT Quiet Series
®
features GTO
®
output
control and undershoot corrector in addition to a split ground
bus for superior performance.
The ’ACTQ14 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 Guaranteed simultaneous switching noise level and
dynamic threshold performance
n Improved latch-up immunity
n 4 kV minimum ESD performance
n Outputs source/sink 24 mA
n Standard Microcircuit Drawing (SMD) 5962-92183
Logic Symbol
Function Table
Input Output
AO
LH
HL
Pin Names Description
I
n
Inputs
O
n
Outputs
Connection Diagrams
GTO™ is a trademark of National Semiconductor Corporation.
FACT Quiet Series™ is a trademark of Fairchild Semiconductor Corporation.
IEEE/IEC
DS010911-3
Pin Assignment
for DIP and Flatpak
DS010911-4
Pin Assignment
for LCC
DS010911-5
September 1998
54ACTQ14
Quiet
Series
Hex
Inverter
with
Schmitt
T
rigger
Input
© 1998 National Semiconductor Corporation DS010911 www.national.com