Datasheet

 
  
SCAS557H − DECEMBER 1995 − REVISED NOVEMBER 2004
1
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
D 4.5-V to 5.5-V V
CC
Operation
D Inputs Accept Voltages to 5.5 V
D Max t
pd
of 11 ns at 5 V
D Inputs Are TTL-Voltage Compatible
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
SN54ACT14 . . . FK PACKAGE
(TOP VIEW)
1Y 1A NC
4Y 4A
V 6A
3Y
GND
NC
CC
SN54ACT14 ...J OR W PACKAGE
SN74ACT14 . . . D, DB, N, NS. OR PW PACKAGE
(TOP VIEW)
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
T+
) and for
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. They also have a greater noise margin than conventional inverters.
ORDERING INFORMATION
T
A
PACKAGE
†
ORDERABLE
PART NUMBER
TOP-SIDE
MARKING
PDIP − N Tube SN74ACT14N SN74ACT14N
SOIC − D
Tube SN74ACT14D
ACT14
SOIC − D
Tape and reel SN74ACT14DR
ACT14
−40°C to 85°C
SOP − NS Tape and reel SN74ACT14NSR ACT14
−40 C to 85 C
SSOP − DB Tape and reel SN74ACT14DBR AD14
TSSOP − PW
Tube SN74ACT14PW
AD14
TSSOP − PW
Tape and reel SN74ACT14PWR
AD14
CDIP − J Tube SNJ54ACT14J SNJ54ACT14J
−55°C to 125°C
CFP − W Tube SNJ54ACT14W SNJ54ACT14W
−55 C to 125 C
LCCC − FK Tube SNJ54ACT14FK SNJ54ACT14FK
†
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
Copyright  2004, Texas Instruments Incorporated
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