54ACTQ14.pdf
(
104 KB
)
Pobierz
September 1998
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
Connection Diagrams
IEEE/IEC
Pin Assignment
for DIP and Flatpak
DS010911-4
DS010911-3
Pin Assignment
for LCC
Function Table
Input
Ou
tp
ut
A
O
L
H
H
L
Pin Names
Description
I
n
Inputs
O
n
Outputs
DS010911-5
GTO
™
is a trademark of National Semiconductor Corporation.
FACT Quiet Series
™
is a trademark of Fairchild Semiconductor Corporation.
© 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
)
Junction Temperature (T
J
)
CDIP
175˚C
Recommended Operating
Conditions
(Note 2)
Supply Voltage (V
CC
)
’ACTQ
−0.5V to +7.0V
DC Input Diode Current (I
IK
)
V
I
=
−0.5V
−20 mA
4.5V to 5.5V
V
I
=
V
CC
+ 0.5V
+20 mA
Input Voltage (V
I
)
0VtoV
CC
DC Input Voltage (V
I
)
−0.5V to V
CC
+ 0.5V
Output Voltage (V
O
)
0VtoV
CC
DC Output Diode Current (I
OK
)
V
O
=
−0.5V
Operating Temperature (T
A
)
54ACTQ −55˚C to +125˚C
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 −40˚C to +125˚C.
−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
)
−65˚C to +150˚C
DC Latch-Up Source
or Sink Current
±
300 mA
DC Characteristics for ’ACTQ Family Devices
54ACTQ
T
A
=
Symbol
Parameter
V
CC
Units
Conditions
(V)
−55˚C to +125˚C
Guaranteed Limits
V
OUT
=
0.1V
V
IH
Minimum High Level
4.5
2.0
V
Input Voltage
5.5
2.0
or V
CC
− 0.1V
V
OUT
=
0.1V
V
IL
Maximum Low Level
4.5
0.8
V
Input Voltage
5.5
0.8
or V
CC
− 0.1V
I
OUT
=
−50 µA
V
OH
Minimum High Level
4.5
4.4
V
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
I
OUT
=
50 µA
V
OL
Maximum Low Level
4.5
0.1
V
Output Voltage
5.5
0.1
(Note 3)
V
IN
=
V
IL
or V
IH
4.5
0.50
V
I
OL
=24mA
5.5
0.50
I
OL
=24mA
±
1.0
V
I
=
V
CC
, GND
I
IN
Maximum Input
5.5
µA
Leakage Current
T
A
=
Worst Case
V
h(max)
Maximum Hysteresis
4.5
1.4
V
5.5
1.6
T
A
=
Worst Case
V
h(min)
Minimum Hysteresis
4.5
0.4
V
5.5
0.5
T
A
=
Worst Case
V
t
+
Maximum Positive
Threshold
5.5
2.0
V
T
A
=
Worst Case
V
t
−
Minimum Negative
Threshold
5.5
0.8
V
I
CCT
Maximum
5.5
1.6
mA
V
I
= V
CC
− 2.1V
I
CC
/Input
www.national.com
2
DC Characteristics for ’ACTQ Family Devices
(Continued)
54ACTQ
T
A
=
Symbol
Parameter
V
CC
Units
Conditions
(V)
−55˚C to +125˚C
Guaranteed Limits
V
OLD
=
1.65V Max
I
OLD
Minimum Dynamic
5.5
50
mA
V
OHD
=
3.85V Min
I
OHD
Output Current (Note 4)
5.5
−50
mA
V
IN
=
V
CC
I
CC
Maximum Quiescent
5.5
40.0
µA
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
@
25˚C is identical to 74ACTQ
@
25˚C.
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
= −55˚C
Symbol
Parameter
to +125˚C
Units
(V)
(Note 7)
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
V
CC
=
5.0V
C
PD
Power Dissipation
80
pF
Capacitance
3
www.national.com
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
5
www.national.com
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