Document
D 4.5-V to 5.5-V VCC Operation D Inputs Accept Voltages to 5.5 V
SN54ACT14 . . . J OR W PACKAGE SN74ACT14 . . . D, DB, N, NS. OR PW PACKAGE
(TOP VIEW)
1A 1 1Y 2 2A 3 2Y 4 3A 5 3Y 6 GND 7
14 VCC 13 6A 12 6Y 11 5A 10 5Y 9 4A 8 4Y
SN54ACT14, SN74ACT14 HEX SCHMITTĆTRIGGER INVERTER
SCAS557H − DECEMBER 1995 − REVISED NOVEMBER 2004
D Max tpd of 11 ns at 5 V D Inputs Are TTL-Voltage Compatible
SN54ACT14 . . . FK PACKAGE (TOP VIEW)
6A
VCC
NC
1A
1Y
2A
3 2 1 20 19
4
18
6Y
NC 5
17 NC
2Y 6
16 5A
NC 7
15 NC
3A 8
14 5Y
9 10 11 12 13
4A
4Y
NC
GND
3Y
description/ordering information
NC − No internal connection
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 (VT+) and for negative-going (VT−) 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
TA
PACKAGE†
ORDERABLE PART NUMBER
TOP-SIDE MARKING
PDIP − N
Tube
SN74ACT14N
SN74ACT14N
SOIC − D
Tube Tape and reel
SN74ACT14D SN74ACT14DR
ACT14
−40°C to 85°C
SOP − NS SSOP − DB
Tape and reel Tape and reel
SN74ACT14NSR SN74ACT14DBR
ACT14 AD14
TSSOP − PW
Tube Tape and reel
SN74ACT14PW SN74ACT14PWR
AD14
CDIP − J
Tube
SNJ54ACT14J
SNJ54ACT14J
−55°C to 125°C CFP − W
Tube
SNJ54ACT14W
SNJ54ACT14W
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 OUTPUT
A
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.
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.
• POST OFFICE BOX 655303 DALLAS, TEXAS 75265
Copyright 2004, Texas Instruments Incorporated On products compliant to MILĆPRFĆ38535, all parameters are tested unless otherwise noted. On all other products, production processing does not necessarily include testing of all parameters.
1
SN54ACT14, SN74ACT14 HEX SCHMITTĆTRIGGER INVERTER
SCAS557H − DECEMBER 1995 − REVISED NOVEMBER 2004
logic diagram, each inverter (positive logic)
A
Y
absolute maximum ratings over operating free-air temperature range (unless otherwise noted)†
Supply voltage range, VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −0.5 V to 7 V Input voltage range, VI (see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −0.5 V to VCC + 0.5 V Output voltage range, VO (see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −0.5 V to VCC + 0.5 V Input clamp current, IIK (VI < 0 or VI > VCC) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±20 mA Output clamp current, IOK (VO < 0 or VO > VCC) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±20 mA Continuous output current, IO (VO = 0 to VCC) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±50 mA Continuous current through VCC or GND . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±200 mA Package thermal impedance, θJA (see Note 2): D package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 86°C/W
DB package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 96°C/W N package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80°C/W NS package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 76°C/W PW package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 113°C/W Storage temperature range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −65°C to 150°C
† Stresses beyond those listed under “absolute maximum ratings” may cause permanent damage to the device. These are stress ratings only, and
functional operation of the device at these or any other conditions beyond those indicated under “recommended operating conditions” is not
implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
NOTES: 1. The input and output voltage ratings may be exceeded if the input and output current ratings are observed..