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SN54LS688J on a board, in 3D

SN54LS688J

Texas Instruments

74LS CDIP-20 Digital Comparators ROHS

Extended
DatasheetJLCPCBLCSCti/SN54LS688J
Category
Signal Switches, Multiplexers, Decoders
Package
CDIP-20
Pins
5

Overview

The SN54LS688J is a signal Switches, Multiplexers, Decoder made by Texas Instruments in a CDIP-20 package with 20 pins. 74LS CDIP-20 Digital Comparators ROHS.

PCBKit's library has its KiCad symbol (EasyEDA_Cloud:SN54ALS688J, from EasyEDA) and its footprint (EasyEDA_Cloud:CDIP-20_L27.0-W6.7-P2.54-LS7.8-BL, from EasyEDA), ready for a KiCad board. JLCPCB lists it (part C3209363).

Symbol

G#1P02Q03P14Q15P26Q27P38Q39GND10P411Q412P513Q514P615Q616P717Q718P=Q#19VCC20
EasyEDA_Cloud:SN54ALS688JFrom EasyEDA

Footprint

1234567891011121314151617181920
EasyEDA_Cloud:CDIP-20_L27.0-W6.7-P2.54-LS7.8-BLFrom EasyEDA

Order codes

1

Pinout

20
The pins of the SN54LS688J
PinNameType
1G#Unspecified
2P0Unspecified
3Q0Unspecified
4P1Unspecified
5Q1Unspecified
6P2Unspecified
7Q2Unspecified
8P3Unspecified
9Q3Unspecified
10GNDUnspecified
11P4Unspecified
12Q4Unspecified
13P5Unspecified
14Q5Unspecified
15P6Unspecified
16Q6Unspecified
17P7Unspecified
18Q7Unspecified
19P=Q#Unspecified
20VCCUnspecified

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A live frame, for any web page
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A picture
<img src="https://pcbkit.io/embed/parts/ti/SN54LS688J.jpg" alt="SN54LS688J" width="1200" height="900">
A picture that opens the part, for a README
[![SN54LS688J](https://pcbkit.io/embed/parts/ti/SN54LS688J.jpg?size=s)](https://pcbkit.io/parts/ti/SN54LS688J)

Questions

Is there a KiCad symbol and footprint for the SN54LS688J?

Yes. The symbol is EasyEDA_Cloud:SN54ALS688J and the footprint EasyEDA_Cloud:CDIP-20_L27.0-W6.7-P2.54-LS7.8-BL, both drawn on this page. PCBKit places them on a board for you when you design with it.

What package is the SN54LS688J?

CDIP-20, with 20 pins. Its footprint is drawn on this page.

Where is the SN54LS688J datasheet?

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

Where can I order the SN54LS688J?

JLCPCB lists it as part C3209363, with 0 in stock; the sellers' links on this page open their listings.

What can replace the SN54LS688J?

Parts like it in the library: the CD54HC354F3A by Texas Instruments and the SN54LS682J by Texas Instruments. Check their datasheets: a part that fits the footprint may still differ in its ratings.

Parts like it

2