SN5414, SN54LS14,
SN7414, SN74LS14
HEX SCHMITT-TRIGGER INVERTERS

SDLS049B – DECEMBER 1983 – REVISED FEBRUARY 2002
1POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
C0068 Operation From Very Slow Edges
C0068 Improved Line-Receiving Characteristics
C0068 High Noise Immunity
description
Each circuit functions as an inverter, but because
of the Schmitt action, it has different input
threshold levels for positive-going (V
T+
) and
negative-going (V
T–
) signals.
These circuits are temperature compensated and
can be triggered from the slowest of input ramps
and still give clean, jitter-free output signals.
ORDERING INFORMATION
T
A
PACKAGE
†
ORDERABLE
PART NUMBER
TOP-SIDE
MARKING
PDIP N
Tube SN7414N SN7414N
–
Tube SN74LS14N SN74LS14N
Tube SN7414D
7414
0°Cto70°C SOIC D
Tape and reel SN7414DR
C to 70 –
Tube SN74LS14D
LS14
Tape and reel SN74LS14DR
SOP – NS Tape and reel SN7414NSR SN7414
SSOP – DB Tape and reel SN74LS14DBR LS14
Tube SN5414J SN5414J
CDIP J
Tube SNJ5414J SNJ5414J
–
Tube SN54LS14J SN54LS14J
–55°C to 125°C Tube SNJ54LS14J SNJ54LS14J
CFP W
Tube SNJ5414W SNJ5414W
–
Tube SNJ54LS14W SNJ54LS14W
LCCC – FK Tube SNJ54LS14FK SNJ54LS14FK
†
Package drawings, standard packing quantities, thermal data, symbolization, and PCB design guidelines are
available at www.ti.com/sc/package.
Copyright  2002, Texas Instruments Incorporated
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.

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.
SN5414, SN54LS14 ...J OR W PACKAGE
SN7414 . . . D, N, OR NS PACKAGE
SN74LS14 . . . D, DB, OR N PACKAGE
(TOP VIEW)
1
2
3
4
5
6
7
14
13
12
11
10
9
8
1A
1Y
2A
2Y
3A
3Y
GND
V
CC
6A
6Y
5A
5Y
4A
4Y
3212019
910111213
4
5
6
7
8
18
17
16
15
14
6Y
NC
5A
NC
5Y
2A
NC
2Y
NC
3A
1Y 1A NC
4Y 4A
6A
3Y
GND
NC
NC – No internal connection
V
CC
SN54LS14 . . . FK PACKAGE
(TOP VIEW)
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.