ꢀꢁꢂ ꢃ ꢄꢅ ꢆꢇ ꢃ ꢈ ꢀꢁꢉ ꢃꢄ ꢅꢆ ꢇꢃ
ꢊꢋꢌ ꢀꢅꢊ ꢍꢎ ꢆꢆꢏꢆ ꢐꢎꢑ ꢑ ꢋꢐ ꢎ ꢁꢒ ꢋ ꢐꢆ ꢋꢐ
SCAS557H − DECEMBER 1995 − REVISED NOVEMBER 2004
D
D
4.5-V to 5.5-V V
Operation
D
D
Max t of 11 ns at 5 V
pd
Inputs Are TTL-Voltage Compatible
CC
Inputs Accept Voltages to 5.5 V
SN54ACT14 . . . J OR W PACKAGE
SN74ACT14 . . . D, DB, N, NS. OR PW PACKAGE
(TOP VIEW)
SN54ACT14 . . . FK PACKAGE
(TOP VIEW)
1A
1Y
V
CC
1
2
3
4
5
6
7
14
3
2
1 20 19
18
13 6A
12 6Y
11 5A
6Y
NC
5A
NC
5Y
2A
NC
2Y
4
5
6
7
8
2A
17
16
15
14
2Y
10
9
3A
5Y
4A
4Y
NC
3A
3Y
8
GND
9 10 11 12 13
NC − No internal connection
description/ordering information
These Schmitt-trigger devices contain six independent inverters. They perform the Boolean function Y = A.
Because of the Schmitt action, they have different input threshold levels for positive-going (V ) and for
T+
negative-going (V ) signals.
T−
These circuits are temperature compensated and can be triggered from the slowest of input ramps and still give
clean, jitter-free output signals. They also have a greater noise margin than conventional inverters.
ORDERING INFORMATION
ORDERABLE
PART NUMBER
TOP-SIDE
MARKING
†
PACKAGE
T
A
PDIP − N
SOIC − D
Tube
SN74ACT14N
SN74ACT14N
Tube
SN74ACT14D
ACT14
Tape and reel
Tape and reel
Tape and reel
Tube
SN74ACT14DR
SN74ACT14NSR
SN74ACT14DBR
SN74ACT14PW
SN74ACT14PWR
SNJ54ACT14J
SNJ54ACT14W
SNJ54ACT14FK
SOP − NS
ACT14
AD14
−40°C to 85°C
SSOP − DB
TSSOP − PW
AD14
Tape and reel
Tube
CDIP − J
CFP − W
LCCC − FK
SNJ54ACT14J
SNJ54ACT14W
SNJ54ACT14FK
Tube
−55°C to 125°C
Tube
†
Package drawings, standard packing quantities, thermal data, symbolization, and PCB design guidelines are
available at www.ti.com/sc/package.
FUNCTION TABLE
(each inverter)
INPUT
A
OUTPUT
Y
H
L
L
H
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.
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