SN74LS251NG4

Texas Instruments

PDIP-16 Signal Switches, Multiplexers, Decoders ROHS

Extended

ti/SN74LS251NG4

Category: Signal Switches , Encoders & Decoders , Multiplexers
Package: PDIP-16
Pins: 16

Overview

The SN74LS251NG4 is a signal Switches , Encoders & Decoders , Multiplexer made by Texas Instruments in a PDIP-16 package with 16 pins. PDIP-16 Signal Switches, Multiplexers, Decoders ROHS.

PCBKit's library has its KiCad symbol (74xx:74LS251, from KiCad's library) and its footprint (Package_DIP:DIP-16_W8.89mm_SMDSocket_LongPads, from KiCad's library), ready for a KiCad board. JLCPCB lists it (part C1547430).

Symbol

74xx:74LS251From KiCad's library

Footprint

Package_DIP:DIP-16_W8.89mm_SMDSocket_LongPadsFrom KiCad's library

Order codes

SN74LS251NG4LCSC C1547430

Pinout

The pins of the SN74LS251NG4
Pin	Name	Type
1	I3	Input
2	I2	Input
3	I1	Input
4	I0	Input
5	Y	Tri-state
6	Y	Tri-state
7	OE	Input
8	GND	Power in
9	S2	Input
10	S1	Input
11	S0	Input
12	I7	Input
13	I6	Input
14	I5	Input
15	I4	Input
16	VCC	Power in

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A picture

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A picture that opens the part, for a README

[![SN74LS251NG4](https://pcbkit.io/embed/parts/ti/SN74LS251NG4.jpg?size=s)](https://pcbkit.io/parts/ti/SN74LS251NG4)

Questions

Is there a KiCad symbol and footprint for the SN74LS251NG4?

Yes. The symbol is 74xx:74LS251 and the footprint Package_DIP:DIP-16_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 SN74LS251NG4?

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

Where can I order the SN74LS251NG4?

JLCPCB lists it as part C1547430, with 0 in stock; the sellers' links on this page open their listings.

What can replace the SN74LS251NG4?

Parts like it in the library: the SN74LS253N by Texas Instruments, the SN7447ANE4 by Texas Instruments and the XD22100 by XINLUDA. Check their datasheets: a part that fits the footprint may still differ in its ratings.