SN5414, SN54LS14,
SN7414, SN74LS14
HEX SCHMITT-TRIGGER INVERTERS
SDLS049B – DECEMBER 1983 – REVISED FEBRUARY 2002
SN5414, SN54LS14 . . . J OR W PACKAGE
SN7414 . . . D, N, OR NS PACKAGE
SN74LS14 . . . D, DB, OR N PACKAGE
(TOP VIEW)
Operation From Very Slow Edges
Improved Line-Receiving Characteristics
High Noise Immunity
1A
1Y
2A
2Y
3A
V
CC
1
2
3
4
5
6
7
14
13
12
11
description
6A
6Y
5A
Each circuit functions as an inverter, but because
of the Schmitt action, it has different input
threshold levels for positive-going (V ) and
T+
10 5Y
negative-going (V ) signals.
T–
3Y
GND
4A
4Y
9
8
These circuits are temperature compensated and
can be triggered from the slowest of input ramps
and still give clean, jitter-free output signals.
SN54LS14 . . . FK PACKAGE
(TOP VIEW)
3
2
1
20 19
18
6Y
NC
5A
NC
2A
NC
2Y
4
5
6
7
8
17
16
15
NC
3A
14 5Y
9 10 11 12 13
NC – No internal connection
ORDERING INFORMATION
ORDERABLE
PART NUMBER
TOP-SIDE
MARKING
†
PACKAGE
T
A
Tube
SN7414N
SN7414N
PDIP – N
SOIC – D
Tube
SN74LS14N
SN7414D
SN74LS14N
Tube
7414
Tape and reel
Tube
SN7414DR
0°C to 70°C
SN74LS14D
SN74LS14DR
SN7414NSR
SN74LS14DBR
SN5414J
LS14
Tape and reel
Tape and reel
Tape and reel
Tube
SOP – NS
SN7414
SSOP – DB
LS14
SN5414J
Tube
SNJ5414J
SNJ5414J
SN54LS14J
SNJ54LS14J
SNJ5414W
SNJ54LS14W
SNJ54LS14FK
CDIP – J
Tube
SN54LS14J
SNJ54LS14J
SNJ5414W
–55°C to 125°C
Tube
Tube
CFP – W
Tube
SNJ54LS14W
SNJ54LS14FK
LCCC – FK
Tube
†
Package drawings, standard packing quantities, thermal data, symbolization, and PCB design guidelines are
available at www.ti.com/sc/package.
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
Copyright 2002, Texas Instruments Incorporated
On products compliant to MIL-PRF-38535, all parameters are tested
unless otherwise noted. On all other products, production
processing does not necessarily include testing of all parameters.
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of Texas Instruments
standard warranty. Production processing does not necessarily include
testing of all parameters.
1
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