Skip to the content
PCBKitNew board
74F251ASJ on a board, in 3D

74F251ASJ

onsemi

0℃~+70℃ 16mA 24mA 3mA 4.5V~5.5V 6ns@5.0V,50pF 74F Output enable high-impedance、Tri-state output Single Supply SOIC-16-208mil Signal Switches, Multiplexers, Decoders ROHS

Extended
DatasheetJLCPCBLCSConsemi/74F251ASJ
Category
Signal Switches, Multiplexers, Decoders
Package
SOIC-16-208mil
Pins
5

Overview

The 74F251ASJ is a signal Switches, Multiplexers, Decoder made by onsemi in a SOIC-16-208mil package with 16 pins. 0℃~+70℃ 16mA 24mA 3mA 4.5V~5.5V 6ns@5.0V,50pF 74F Output enable high-impedance、Tri-state output Single Supply SOIC-16-208mil Signal Switches, Multiplexers, Decoders ROHS.

PCBKit's library has its KiCad symbol (74xx:74LS251, from KiCad's library) and its footprint (EasyEDA_Cloud:SOIC-16_L10.2-W5.3-P1.27-LS7.8-BL, from EasyEDA), ready for a KiCad board. JLCPCB lists it (part C3234019).

Symbol

I31I22I13I04Y5Y6OE7GND8S29S110S011I712I613I514I415VCC16
74xx:74LS251From KiCad's library

Footprint

12345678910111213141516
EasyEDA_Cloud:SOIC-16_L10.2-W5.3-P1.27-LS7.8-BLFrom EasyEDA

Parameters

6
Current - Output High(IOH)
3mA
Current - Output Low(IOL)
24mA
Operating temperature
0℃~+70℃
Type
Multiplexers
Voltage - Supply
4.5V~5.5V
Voltage Supply Source
Single supply

Order codes

1

Pinout

16
The pins of the 74F251ASJ
PinNameType
1I3Input
2I2Input
3I1Input
4I0Input
5YTri-state
6YTri-state
7OEInput
8GNDPower in
9S2Input
10S1Input
11S0Input
12I7Input
13I6Input
14I5Input
15I4Input
16VCCPower in

Show this part on your page

A live frame, for any web page
<iframe src="https://pcbkit.io/embed/parts/onsemi/74F251ASJ" title="74F251ASJ in PCBKit" width="100%" height="480" style="border:0;border-radius:12px" allow="fullscreen" loading="lazy"></iframe>
A picture
<img src="https://pcbkit.io/embed/parts/onsemi/74F251ASJ.jpg" alt="74F251ASJ" width="1200" height="900">
A picture that opens the part, for a README
[![74F251ASJ](https://pcbkit.io/embed/parts/onsemi/74F251ASJ.jpg?size=s)](https://pcbkit.io/parts/onsemi/74F251ASJ)

Questions

Is there a KiCad symbol and footprint for the 74F251ASJ?

Yes. The symbol is 74xx:74LS251 and the footprint EasyEDA_Cloud:SOIC-16_L10.2-W5.3-P1.27-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 74F251ASJ?

SOIC-16-208mil, with 16 pins. Its footprint is drawn on this page.

Where is the 74F251ASJ datasheet?

onsemi publishes it: the Datasheet link on this page opens it.

Where can I order the 74F251ASJ?

JLCPCB lists it as part C3234019, with 0 in stock; the sellers' links on this page open their listings.

What can replace the 74F251ASJ?

Parts like it in the library: the SN74AHC138NSR by Texas Instruments, the SN74LS145NSR by Texas Instruments, the SN74LS155ANS by Texas Instruments and the SN74ALS157ANS by Texas Instruments. Check their datasheets: a part that fits the footprint may still differ in its ratings.

Parts like it

8