Overview
The SNJ54LS221W is a monostable Multivibrator made by Texas Instruments in a CFP-16 package with 16 pins. Reset input、Adjustable pulse width、Dual edge triggering CFP-16 Monostable Multivibrators ROHS.
PCBKit's library has its KiCad symbol (EasyEDA_Cloud:SNJ54LS123J, from EasyEDA) and its footprint (EasyEDA_Cloud:CFP-16_L10.9-W7.5-P1.27-LS12.4-TL, from EasyEDA), ready for a KiCad board. JLCPCB lists it (part C3236199).
Symbol
Footprint
Order codes
1- SNJ54LS221WLCSC C3236199
Pinout
16| Pin | Name | Type |
|---|---|---|
| 1 | 1A | Unspecified |
| 2 | 1B | Unspecified |
| 3 | 1CLR# | Unspecified |
| 4 | 1Q# | Unspecified |
| 5 | 2Q | Unspecified |
| 6 | 2CEXT | Unspecified |
| 7 | 2REXT/CEXT | Unspecified |
| 8 | GND | Unspecified |
| 9 | 2A | Unspecified |
| 10 | 2B | Unspecified |
| 11 | 2CLR# | Unspecified |
| 12 | 2Q# | Unspecified |
| 13 | 1Q | Unspecified |
| 14 | 1CEXT | Unspecified |
| 15 | 1REXT/CEXT | Unspecified |
| 16 | VCC | Unspecified |
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<iframe src="https://pcbkit.io/embed/parts/ti/SNJ54LS221W" title="SNJ54LS221W in PCBKit" width="100%" height="480" style="border:0;border-radius:12px" allow="fullscreen" loading="lazy"></iframe><img src="https://pcbkit.io/embed/parts/ti/SNJ54LS221W.jpg" alt="SNJ54LS221W" width="1200" height="900">[](https://pcbkit.io/parts/ti/SNJ54LS221W)Questions
Is there a KiCad symbol and footprint for the SNJ54LS221W?
Yes. The symbol is EasyEDA_Cloud:SNJ54LS123J and the footprint EasyEDA_Cloud:CFP-16_L10.9-W7.5-P1.27-LS12.4-TL, both drawn on this page. PCBKit places them on a board for you when you design with it.
What package is the SNJ54LS221W?
CFP-16, with 16 pins. Its footprint is drawn on this page.
Where is the SNJ54LS221W datasheet?
Texas Instruments publishes it: the Datasheet link on this page opens it.
Where can I order the SNJ54LS221W?
JLCPCB lists it as part C3236199, with 0 in stock; the sellers' links on this page open their listings.
What can replace the SNJ54LS221W?
Parts like it in the library: the JM38510/31401BFA by Texas Instruments. Check their datasheets: a part that fits the footprint may still differ in its ratings.
