Overview
The SN74LS139D is a signal Switches, Multiplexers, Decoder made by onsemi in a SOIC-16 package with 16 pins. 74LS SOIC-16 Signal Switches, Multiplexers, Decoders.
PCBKit's library has its KiCad symbol (74xx:74LS139, from KiCad's library) and its footprint (Package_SO:SO-16_3.9x9.9mm_P1.27mm, from KiCad's library), ready for a KiCad board. JLCPCB lists it (part C3208994).
Symbol
Footprint
Order codes
1- SN74LS139DLCSC C3208994
Pinout
16| Pin | Name | Type |
|---|---|---|
| 1 | E | Input |
| 2 | A0 | Input |
| 3 | A1 | Input |
| 4 | O0 | Output |
| 5 | O1 | Output |
| 6 | O2 | Output |
| 7 | O3 | Output |
| 8 | GND | Power in |
| 9 | O3 | Output |
| 10 | O2 | Output |
| 11 | O1 | Output |
| 12 | O0 | Output |
| 13 | A1 | Input |
| 14 | A0 | Input |
| 15 | E | Input |
| 16 | VCC | Power in |
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<iframe src="https://pcbkit.io/embed/parts/onsemi/SN74LS139D" title="SN74LS139D in PCBKit" width="100%" height="480" style="border:0;border-radius:12px" allow="fullscreen" loading="lazy"></iframe><img src="https://pcbkit.io/embed/parts/onsemi/SN74LS139D.jpg" alt="SN74LS139D" width="1200" height="900">[](https://pcbkit.io/parts/onsemi/SN74LS139D)Questions
Is there a KiCad symbol and footprint for the SN74LS139D?
Yes. The symbol is 74xx:74LS139 and the footprint Package_SO:SO-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 SN74LS139D?
SOIC-16, with 16 pins. Its footprint is drawn on this page.
Where is the SN74LS139D datasheet?
onsemi publishes it: the Datasheet link on this page opens it.
Where can I order the SN74LS139D?
JLCPCB lists it as part C3208994, with 0 in stock; the sellers' links on this page open their listings.
What can replace the SN74LS139D?
Parts like it in the library: the 74HC138D by Nexperia, the EM74HC138D by EnergyMath, the CD4028BM(LX) by lingxingic and the CJ74HC157AEN by Jiangsu Changjing Electronics Technology (CJ). Check their datasheets: a part that fits the footprint may still differ in its ratings.
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