
Overview
The SN54LS399J is a flip Flop made by Texas Instruments with 16 pins. -55℃~+125℃ 1 25ns、45ns 4 4.5V~5.5V 400uA 4mA 54LS Series Rising Edge - Signal Switches, Multiplexers, Decoders ROHS.
PCBKit's library has its KiCad symbol (EasyEDA_Cloud:SN54LS399J_C3825820, from EasyEDA) and its footprint (EasyEDA_Cloud:CDIP-16_L21.4-W6.8-P2.54-LS7.8-BL, from EasyEDA), ready for a KiCad board. JLCPCB lists it (part C3825820).
Symbol
Footprint
Order codes
1- SN54LS399JLCSC C3825820
Pinout
16| Pin | Name | Type |
|---|---|---|
| 1 | WS | Unspecified |
| 2 | QA | Unspecified |
| 3 | A1 | Unspecified |
| 4 | A2 | Unspecified |
| 5 | B2 | Unspecified |
| 6 | B1 | Unspecified |
| 7 | QB | Unspecified |
| 8 | GND | Unspecified |
| 9 | CLK | Unspecified |
| 10 | QC | Unspecified |
| 11 | C1 | Unspecified |
| 12 | C2 | Unspecified |
| 13 | D2 | Unspecified |
| 14 | D1 | Unspecified |
| 15 | QD | Unspecified |
| 16 | VCC | Unspecified |
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Is there a KiCad symbol and footprint for the SN54LS399J?
Yes. The symbol is EasyEDA_Cloud:SN54LS399J_C3825820 and the footprint EasyEDA_Cloud:CDIP-16_L21.4-W6.8-P2.54-LS7.8-BL, both drawn on this page. PCBKit places them on a board for you when you design with it.
Where is the SN54LS399J datasheet?
Texas Instruments publishes it: the Datasheet link on this page opens it.
Where can I order the SN54LS399J?
JLCPCB lists it as part C3825820, with 0 in stock; the sellers' links on this page open their listings.
What can replace the SN54LS399J?
Parts like it in the library: the 8400001EA by Texas Instruments, the CD4027BF3A by Texas Instruments, the SN54LS109AJ by Texas Instruments and the SN54LS173AJ by Texas Instruments. Check their datasheets: a part that fits the footprint may still differ in its ratings.
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