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
A
O
L
H
H
L
Pin Names
Description
I
n
Inputs
O
n
Outputs
Connection Diagrams
GTO
TM
is a trademark of National Semiconductor Corporation.
FACT Quiet Series
TM
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
Absolute Maximum Ratings
(Note 1)
If Military/Aerospace specified devices are required,
please contact the National Semiconductor Sales Office/
Distributors for availability and specifications.
Supply Voltage (V
CC
)
-0.5V to +7.0V
DC Input Diode Current (I
IK
)
V
I
= -0.5V
-20 mA
V
I
= V
CC
+ 0.5V
+20 mA
DC Input Voltage (V
I
)
-0.5V to V
CC
+ 0.5V
DC Output Diode Current (I
OK
)
V
O
= -0.5V
-20 mA
V
O
= V
CC
+ 0.5V
+20 mA
DC Output Voltage (V
O
)
-0.5V to V
CC
+ 0.5V
DC Output Source
or Sink Current (I
O
)
50 mA
DC V
CC
or Ground Current
per Output Pin (I
CC
or I
GND
)
50 mA
Storage Temperature (T
STG
)
-65C to +150C
DC Latch-Up Source
or Sink Current
300 mA
Junction Temperature (T
J
)
CDIP
175C
Recommended Operating
Conditions
(Note 2)
Supply Voltage (V
CC
)
'ACTQ
4.5V to 5.5V
Input Voltage (V
I
)
0V to V
CC
Output Voltage (V
O
)
0V to V
CC
Operating Temperature (T
A
)
54ACTQ
-55C to +125C
Note 1: Absolute maximum ratings are those values beyond which damage
to the device may occur. The databook specifications should be met, without
exception, to ensure that the system design is reliable over its power supply,
temperature, and output/input loading variables. National does not recom-
mend operation outside of databook specifications.
Note 2: All commercial packaging is not recommended for applications re-
quiring greater than 2000 temperature cycles from -40C to +125C.
DC Characteristics for 'ACTQ Family Devices
54ACTQ
Symbol
Parameter
V
CC
T
A
=
Units
Conditions
(V)
-55C to +125C
Guaranteed Limits
V
IH
Minimum High Level
4.5
2.0
V
V
OUT
= 0.1V
Input Voltage
5.5
2.0
or V
CC
- 0.1V
V
IL
Maximum Low Level
4.5
0.8
V
V
OUT
= 0.1V
Input Voltage
5.5
0.8
or V
CC
- 0.1V
V
OH
Minimum High Level
4.5
4.4
V
I
OUT
= -50 A
Output Voltage
5.5
5.4
(Note 3)
V
IN
= V
IL
or V
IH
4.5
3.70
V
I
OH
= -24 mA
5.5
4.70
I
OH
= -24 mA
V
OL
Maximum Low Level
4.5
0.1
V
I
OUT
= 50 A
Output Voltage
5.5
0.1
(Note 3)
V
IN
= V
IL
or V
IH
4.5
0.50
V
I
OL
= 24 mA
5.5
0.50
I
OL
= 24 mA
I
IN
Maximum Input
5.5
1.0
A
V
I
= V
CC
, GND
Leakage Current
V
h(max)
Maximum Hysteresis
4.5
1.4
V
T
A
= Worst Case
5.5
1.6
V
h(min)
Minimum Hysteresis
4.5
0.4
V
T
A
= Worst Case
5.5
0.5
V
t
+
Maximum Positive
Threshold
5.5
2.0
V
T
A
= Worst Case
V
t
-
Minimum Negative
Threshold
5.5
0.8
V
T
A
= Worst Case
I
CCT
Maximum
5.5
1.6
mA
V
I
= V
CC
- 2.1V
I
CC
/Input
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2
DC Characteristics for 'ACTQ Family Devices
(Continued)
54ACTQ
Symbol
Parameter
V
CC
T
A
=
Units
Conditions
(V)
-55C to +125C
Guaranteed Limits
I
OLD
Minimum Dynamic
5.5
50
mA
V
OLD
= 1.65V Max
I
OHD
Output Current (Note 4)
5.5
-50
mA
V
OHD
= 3.85V Min
I
CC
Maximum Quiescent
5.5
40.0
A
V
IN
= V
CC
Supply Current
or GND (Note 5)
V
OLP
Quiet Output Maximum
5.0
1.5
V
Dynamic V
OL
(Note 6)
V
OLV
Quiet Output Minimum
5.0
-1.2
V
Dynamic V
OL
(Note 6)
Note 3: All outputs loaded; thresholds on input associated with output under test.
Note 4: Maximum test duration 2.0 ms, one output loaded at a time.
Note 5: I
CC
for 54ACTQ
@
25C is identical to 74ACTQ
@
25C.
Note 6: Max number of outputs defined as (n). Data inputs are 0V to 3V. One output
@
GND.
AC Electrical Characteristics
54ACTQ
V
CC
T
A
= -55C
Symbol
Parameter
(V)
(Note 7)
to +125C
Units
C
L
= 50 pF
Min
Max
t
PLH
Propagation Delay
5.0
1.0
12.5
ns
Data to Output
t
PHL
Propagation Delay
5.0
1.0
11.5
ns
Data to Output
Note 7: Voltage Range 5.0 is 5.0V
0.5V.
Capacitance
Symbol
Parameter
Typ
Units
Conditions
C
IN
Input Capacitance
4.5
pF
V
CC
= OPEN
C
PD
Power Dissipation
80
pF
V
CC
= 5.0V
Capacitance
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3
4
Physical Dimensions
inches (millimeters) unless otherwise noted
20-Terminal Ceramic Leadless Chip Carrier (L)
NS Package Number E20A
14-Lead Ceramic Dual-In-Line Package (D)
NS Package Number J14A
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5
Physical Dimensions
inches (millimeters) unless otherwise noted (Continued)
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1. Life support devices or systems are devices or sys-
tems which, (a) are intended for surgical implant into
the body, or (b) support or sustain life, and whose fail-
ure to perform when properly used in accordance
with instructions for use provided in the labeling, can
be reasonably expected to result in a significant injury
to the user.
2. A critical component in any component of a life support
device or system whose failure to perform can be rea-
sonably expected to cause the failure of the life support
device or system, or to affect its safety or effectiveness.
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14-Lead Ceramic Flatpak (F)
NS Package Number W14B
54ACTQ14
Quiet
Series
Hex
Inverter
with
Schmitt
T
rigger
Input
National does not assume any responsibility for use of any circuitry described, no circuit patent licenses are implied and National reserves the right at any time without notice to change said circuitry and specifications.
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