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DM74LS20 Datasheet(PDF) 2 Page - Texas Instruments

Part No. DM74LS20
Description  Dual 4-Input NAND Gates
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Maker  TI1 [Texas Instruments]
Homepage  http://www.ti.com
Logo TI1 - Texas Instruments

DM74LS20 Datasheet(HTML) 2 Page - Texas Instruments

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TLF6355
June 1989
54LS20DM54LS20DM74LS20 Dual 4-Input NAND Gates
General Description
This device contains two independent gates each of which
performs the logic NAND function
Features
Y
Alternate MilitaryAerospace device (54LS20) is avail-
able Contact a National Semiconductor Sales Office
Distributor for specifications
Connection Diagram
Dual-In-Line Package
TLF6355 – 1
Order Number 54LS20DMQB 54LS20FMQB 54LS20LMQB
DM54LS20J DM54LS20W DM74LS20M or DM74LS20N
See NS Package Number E20A J14A M14A N14A or W14B
Function Table
Y e ABCD
Inputs
Output
AB
C
D
Y
XX
X
L
H
XX
L
X
H
XL
X
X
H
LX
X
X
H
HH
H
H
L
H e High Logic Level
L e Low Logic Level
X e Either Low or High Logic Level
C1995 National Semiconductor Corporation
RRD-B30M105Printed in U S A


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