DataSheet39.com

54LS42 Datasheet PDF - National Semiconductor

Part Number 54LS42
Description BCD/Decimal Decoders
Manufacturers National Semiconductor 
Logo National Semiconductor Logo 



Preview ( 6 pages )
		
54LS42 datasheet, circuit
June 1989
54LS42 DM54LS42 DM74LS42 BCD Decimal Decoders
General Description
These BCD-to-decimal decoders consist of eight inverters
and ten four-input NAND gates The inverters are connect-
ed in pairs to make BCD input data available for decoding
by the NAND gates Full decoding of input logic ensures
that all outputs remain off for all invalid (10–15) input condi-
tions
Connection Diagram
Dual-In-Line Package
TL F 6365 – 1
Order Number 54LS42DMQB 54LS42FMQB
DM54LS42J DM54LS42W DM74LS42M or DM74LS42N
See NS Package Number J16A M16A N16E or W16A
Logic Diagram
Features
Y Diode clamped inputs
Y Also for applications as 4-line-to-16-line decoders 3-
line-to-8-line decoders
Y All outputs are high for invalid input conditions
Y Alternate Military Aerospace device (54LS42) is avail-
able Contact a National Semiconductor Sales Office
Distributor for specifications
Function Table
No BCD Inputs
Decimal Outputs
DCBA0 1 2 3 4 5 6 7 8 9
0 L L L L LHHHHHHHHH
1 L L LHHLHHHHHHHH
2 L LHLHHLHHHHHHH
3 L LHHHHHLHHHHHH
4 LHL LHHHHLHHHHH
5 LHLHHHHHHLHHHH
6 LHHLHHHHHHLHHH
7 LHHHHHHHHHHLHH
8 HL L LHHHHHHHHLH
9 HL LHHHHHHHHHHL
I
N
V
A
L
I
D
H L H L HHHHHHHHHH
H L HHHHHHHHHHHH
HHL LHHHHHHHHHH
HH L HHHHHHHHHHH
HHH L HHHHHHHHHH
HHHHHHHHHHHHHH
H e High Level
L e Low Level
C1995 National Semiconductor Corporation TL F 6365
TL F 6365 – 2
RRD-B30M105 Printed in U S A

No Preview Available !


1 page
line_dark_gray
54LS42 equivalent
Physical Dimensions inches (millimeters) (Continued)
16-Lead Small Outline Molded Package (M)
Order Number DM74LS42M
NS Package Number M16A
16-Lead Molded Dual-In-Line Package (N)
Order Number DM74LS42N
NS Package Number N16E
5

5 Page
line_dark_gray


Information Total 6 Pages
Download[ 54LS42.PDF Datasheet ]

Share Link :

Electronic Components Distributor

SparkFun Electronics Allied Electronics DigiKey Electronics Arrow Electronics
Mouser Electronics Adafruit Element14 Chip One Stop



Featured Datasheets

Part NumberDescriptionManufacturers
54LS42The function is BCD/Decimal Decoders.National Semiconductor
National Semiconductor
54LS42The function is 54LS42 DM54LS42 DM74LS42 BCD to Decimal Decoders (Rev. A).Texas Instruments
Texas Instruments
54LS49The function is BCD to 7-Segment Decoder.National Semiconductor
National Semiconductor

Quick jump to:

54LS  1N4  2N2  2SA  2SC  74H  ADC  BC  BF  BU  CXA  HCF  IRF  KA  KIA  LA  LM  MC  NE  ST  STK  TDA  TL  UA 


DataSheet39.com is an Online Datasheet PDF Search Site.
It offers a large amount of data sheet, You can free PDF files download.
The updated every day, always provide the best quality and speed.



keyword : 54LS42 schematic, equivalent, pinout, replacement, circuit, manual

DataSheet39.com   |  2019   |  Privacy Policy |  Contact Us  | New  |  Search