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SN74LS42D on a board, in 3D

SN74LS42D

Texas Instruments

0℃~+70℃ 13mA 25ns@5V,15pF 4.75V~5.25V 4/10 400uA 74LS 8mA Decoder Short-Circuit Protection Single Supply SOIC-16 Signal Switches, Multiplexers, Decoders ROHS

Extended
DatasheetJLCPCBLCSCti/SN74LS42D
Category
Signal Switches, Multiplexers, Decoders
Package
SOIC-16
Pins
16

Overview

The SN74LS42D is a signal Switches, Multiplexers, Decoder made by Texas Instruments in a SOIC-16 package with 16 pins. 0℃~+70℃ 13mA 25ns@5V,15pF 4.75V~5.25V 4/10 400uA 74LS 8mA Decoder Short-Circuit Protection Single Supply SOIC-16 Signal Switches, Multiplexers, Decoders ROHS.

PCBKit's library has its KiCad symbol (74xx:74LS42, from KiCad's library) and its footprint (Package_SO:SOIC-16_3.9x9.9mm_P1.27mm, from KiCad's library), ready for a KiCad board. JLCPCB lists it (part C1547295).

Symbol

01122334455667GND879810911A312A213A114A015VCC16
74xx:74LS42From KiCad's library

Footprint

12345678910111213141516
Package_SO:SOIC-16_3.9x9.9mm_P1.27mmFrom KiCad's library

Parameters

11
Current - Output High(IOH)
400uA
Current - Output Low(IOL)
8mA
Function
Short-Circuit Protection
Number of lines
4/10
Operating temperature
0℃~+70℃
Propagation Delay
25ns@5V,15pF
Quiescent Current
13mA
Series
74LS
Type
Decoder
Voltage - Supply
4.75V~5.25V
Voltage Supply Source
Single Supply

Order codes

1

Pinout

16
The pins of the SN74LS42D
PinNameType
10Output
21Output
32Output
43Output
54Output
65Output
76Output
8GNDPower in
97Output
108Output
119Output
12A3Input
13A2Input
14A1Input
15A0Input
16VCCPower in

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Questions

Is there a KiCad symbol and footprint for the SN74LS42D?

Yes. The symbol is 74xx:74LS42 and the footprint Package_SO:SOIC-16_3.9x9.9mm_P1.27mm, both drawn on this page. PCBKit places them on a board for you when you design with it.

What package is the SN74LS42D?

SOIC-16, with 16 pins. Its footprint is drawn on this page.

Where is the SN74LS42D datasheet?

Texas Instruments publishes it: the Datasheet link on this page opens it.

Where can I order the SN74LS42D?

JLCPCB lists it as part C1547295, with 0 in stock; the sellers' links on this page open their listings.

What can replace the SN74LS42D?

Parts like it in the library: the 74HC4053M/TR by HGSEMI, the SN74HC138D by Texas Instruments, the 74HC138D by JSMSEMI and the MC74HC138AD by onsemi. Check their datasheets: a part that fits the footprint may still differ in its ratings.

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