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SN74LS688NG4 on a board, in 3D

SN74LS688NG4

Texas Instruments

PDIP-20 Comparators ROHS

Extended
JLCPCBLCSCti/SN74LS688NG4
Category
Comparators
Package
PDIP-20
Pins
2

Overview

The SN74LS688NG4 is a comparator made by Texas Instruments in a PDIP-20 package with 20 pins. PDIP-20 Comparators ROHS.

PCBKit's library has its KiCad symbol (EasyEDA_Cloud:SN74HC688N, from EasyEDA) and its footprint (Package_DIP:DIP-20_W8.89mm_SMDSocket_LongPads, from KiCad's library), ready for a KiCad board. JLCPCB lists it (part C1523736).

Symbol

VCC20(P=Q)#19Q718P717Q616P615Q514P513Q412P411GND10Q39P38Q27P26Q15P14Q03P02OE#1
EasyEDA_Cloud:SN74HC688NFrom EasyEDA

Footprint

1234567891011121314151617181920
Package_DIP:DIP-20_W8.89mm_SMDSocket_LongPadsFrom KiCad's library

Order codes

1

Pinout

20
The pins of the SN74LS688NG4
PinNameType
1OE#Unspecified
2P0Unspecified
3Q0Unspecified
4P1Unspecified
5Q1Unspecified
6P2Unspecified
7Q2Unspecified
8P3Unspecified
9Q3Unspecified
10GNDUnspecified
11P4Unspecified
12Q4Unspecified
13P5Unspecified
14Q5Unspecified
15P6Unspecified
16Q6Unspecified
17P7Unspecified
18Q7Unspecified
19(P=Q)#Unspecified
20VCCUnspecified

Show this part on your page

A live frame, for any web page
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A picture
<img src="https://pcbkit.io/embed/parts/ti/SN74LS688NG4.jpg" alt="SN74LS688NG4" width="1200" height="900">
A picture that opens the part, for a README
[![SN74LS688NG4](https://pcbkit.io/embed/parts/ti/SN74LS688NG4.jpg?size=s)](https://pcbkit.io/parts/ti/SN74LS688NG4)

Questions

Is there a KiCad symbol and footprint for the SN74LS688NG4?

Yes. The symbol is EasyEDA_Cloud:SN74HC688N and the footprint Package_DIP:DIP-20_W8.89mm_SMDSocket_LongPads, both drawn on this page. PCBKit places them on a board for you when you design with it.

What package is the SN74LS688NG4?

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

Where can I order the SN74LS688NG4?

JLCPCB lists it as part C1523736, with 0 in stock; the sellers' links on this page open their listings.

What can replace the SN74LS688NG4?

Parts like it in the library: the MAX900ACPP by Maxim Integrated (Analog Devices), the MAX900AEPP+ by Maxim Integrated (Analog Devices), the MAX900BEPP by Maxim Integrated (Analog Devices) and the CD74HCT688EG4 by Texas Instruments. Check their datasheets: a part that fits the footprint may still differ in its ratings.

Parts like it

8