TL F 9461
54F74F14
Hex
Inverter
Schmitt
Trigger
December 1994
54F 74F14
Hex Inverter Schmitt Trigger
General Description
The 'F14 contains six logic inverters which accept standard
TTL input signals and provide standard TTL output levels
They are capable of transforming slowly changing input sig-
nals into sharply defined jitter-free output signals In addi-
tion they have a greater noise margin than conventional
inverters
Each circuit contains a Schmitt trigger followed by a Darling-
ton level shifter and a phase splitter driving a TTL totem-
pole output The Schmitt trigger uses positive feed back to
effectively speed-up slow input transition and provide differ-
ent input threshold voltages for positive and negative-going
transitions This hysteresis between the positive-going and
negative-going input thresholds (typically 800 mV) is deter-
mined internally by resistor ratios and is essentially insensi-
tive to temperature and supply voltage variations
Features
Y
Guaranteed 4000V minimum ESD protection
Y
Standard Military Drawing
5962-88752
Commercial
Military
Package
Package Description
Number
74F14PC
N14A
14-Lead (0 300 Wide) Molded Dual-In-Line
54F14DM (Note 2)
J14A
14-Lead Ceramic Dual-In-Line
74F14SC (Note 1)
M14A
14-Lead (0 150 Wide) Molded Small Outline JEDEC
74F14SJ (Note 1)
M14D
14-Lead (0 300 Wide) Molded Small Outline EIAJ
54F14FM (Note 2)
W14B
14-Lead Cerpack
54F14LM (Note 2)
E20A
20-Lead Ceramic Leadless Chip Carrier Type C
Note 1
Devices also available in 13
reel Use Suffix
e
SCX and SJX
Note 2
Military grade device with environmental and burn-in processing Use suffix
e
DMQB FMQB and LMQB
Logic Symbol
IEEE IEC
TL F 9461 3
Connection Diagrams
Pin Assignment
DIP SOIC and Flatpak
TL F 9461 1
Pin Assignment
for LCC
TL F 9461 2
TRI-STATE
is a registered trademark of National Semiconductor Corporation
C1995 National Semiconductor Corporation
RRD-B30M75 Printed in U S A
Absolute Maximum Ratings
(Note 1)
If Military Aerospace specified devices are required
please contact the National Semiconductor Sales
Office Distributors for availability and specifications
Storage Temperature
b
65 C to
a
150 C
Ambient Temperature under Bias
b
55 C to
a
125 C
Junction Temperature under Bias
b
55 C to
a
175 C
V
CC
Pin Potential to
Ground Pin
b
0 5V to
a
7 0V
Input Voltage (Note 2)
b
0 5V to
a
7 0V
Input Current (Note 2)
b
30 mA to
a
5 0 mA
Voltage Applied to Output
in HIGH State (with V
CC
e
0V)
Standard Output
b
0 5V to V
CC
TRI-STATE Output
b
0 5V to
a
5 5V
Current Applied to Output
in LOW State (Max)
twice the rated I
OL
(mA)
ESD Last Passing Voltage (Min)
4000V
Note 1
Absolute maximum ratings are values beyond which the device may
be damaged or have its useful life impaired Functional operation under
these conditions is not implied
Note 2
Either voltage limit or current limit is sufficient to protect inputs
Recommended Operating
Conditions
Free Air Ambient Temperature
Military
b
55 C to
a
125 C
Commercial
0 C to
a
70 C
Supply Voltage
Military
a
4 5V to
a
5 5V
Commercial
a
4 5V to
a
5 5V
DC Electrical Characteristics
Symbol
Parameter
54F 74F
Units
V
CC
Conditions
Min
Typ
Max
V
Ta
Positive-Going Threshold
1 5
1 7
2 0
V
5 0V
V
Tb
Negative-Going Threshold
0 7
0 9
1 1
V
5 0V
D
V
T
Hysteresis (V
Ta
V
Tb
)
0 4
0 8
V
5 0V
V
CD
Input Clamp Diode Voltage
b
1 2
V
Min
I
IN
e b
18 mA
V
OH
Output HIGH
54F 10% V
CC
2 5
I
OH
e b
1 mA
Voltage
74F 10% V
CC
2 5
V
Min
I
OH
e b
1 mA
74F 5% V
CC
2 7
I
OH
e b
1 mA
V
OL
Output LOW
54F 10% V
CC
0 5
V
Min
I
OL
e
20 mA
Voltage
74F 10% V
CC
0 5
I
OL
e
20 mA
I
IH
Input HIGH
54F
20 0
m
A
Max
V
IN
e
2 7V
Current
74F
5 0
I
BVI
Input HIGH Current
54F
100
m
A
Max
V
IN
e
7 0V
Breakdown Test
74F
7 0
I
CEX
Output HIGH
54F
250
m
A
Max
V
OUT
e
V
CC
Leakage Current
74F
50
V
ID
Input Leakage
74F
4 75
V
Max
I
ID
e
1 9 mA
Test
All Other Pins Grounded
I
OD
Output Leakage
74F
3 75
m
A
0 0
V
IOD
e
150 mV
Circuit Current
All Other Pins Grounded
I
IL
Input LOW Current
b
0 6
mA
Max
V
IN
e
0 5V
I
OS
Output Short-Circuit Current
b
60
b
150
mA
Max
V
OUT
e
0V
I
CCH
Power Supply Current
25
mA
Max
V
O
e
HIGH
I
CCL
Power Supply Current
25
mA
Max
V
O
e
LOW
3
AC Electrical Characteristics
74F
54F
74F
T
A
e a
25 C
T
A
V
CC
e
Mil
T
A
V
CC
e
Com
Symbol
Parameter
V
CC
e a
5 0V
C
L
e
50 pF
C
L
e
50 pF
Units
C
L
e
50 pF
Min
Max
Min
Max
Min
Max
t
PLH
Propagation Delay
4 0
10 5
4 0
13 0
4 0
11 5
ns
t
PHL
I
n
x
O
n
3 5
8 5
3 5
10 0
3 5
9 0
Ordering Information
The device number is used to form part of a simplified purchasing code where the package type and temperature range are
defined as follows
74F
14
S
C
X
Temperature Range Family
Special Variations
74F
e
Commercial
QB
e
Military grade device with
54F
e
Military
environmental and burn-in
processing
Device Type
X
e
Devices shipped in 13 reels
Package Code
Temperature Range
P
e
Plastic DIP
C
e
Commercial (0 C to
a
70 C)
D
e
Ceramic DIP
M
e
Military (
b
55 C to
a
125 C)
F
e
Flatpak
L
e
Leadless Chip Carrier (LCC)
S
e
Small Outline SOIC JEDEC
SJ
e
Small Outline SOIC EIAJ
4
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