Overview
The SN54LS684J is a comparator made by Texas Instruments in a CDIP-20 package with 20 pins. -55℃~+125℃ 100nA 15ns 2 400mV 40mA Built-in hysteresis TTL CDIP-20 Digital Comparators ROHS.
PCBKit's library has its KiCad symbol (EasyEDA_Cloud:SN54LS682J, from EasyEDA) and its footprint (EasyEDA_Cloud:PDIP-20_L27.0-W6.5-P2.54-LS7.8-BL, from EasyEDA), ready for a KiCad board. JLCPCB lists it (part C3210577).
Symbol
Footprint
Order codes
1- SN54LS684JLCSC C3210577
Pinout
20| Pin | Name | Type |
|---|---|---|
| 1 | P>Q# | Unspecified |
| 2 | P0 | Unspecified |
| 3 | Q0 | Unspecified |
| 4 | P1 | Unspecified |
| 5 | Q1 | Unspecified |
| 6 | P2 | Unspecified |
| 7 | Q2 | Unspecified |
| 8 | P3 | Unspecified |
| 9 | Q3 | Unspecified |
| 10 | GND | Unspecified |
| 11 | P4 | Unspecified |
| 12 | Q4 | Unspecified |
| 13 | P5 | Unspecified |
| 14 | Q5 | Unspecified |
| 15 | P6 | Unspecified |
| 16 | Q6 | Unspecified |
| 17 | P7 | Unspecified |
| 18 | Q7 | Unspecified |
| 19 | P=Q# | Unspecified |
| 20 | VCC | Unspecified |
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Is there a KiCad symbol and footprint for the SN54LS684J?
Yes. The symbol is EasyEDA_Cloud:SN54LS682J and the footprint EasyEDA_Cloud:PDIP-20_L27.0-W6.5-P2.54-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 SN54LS684J?
CDIP-20, with 20 pins. Its footprint is drawn on this page.
Where is the SN54LS684J datasheet?
Texas Instruments publishes it: the Datasheet link on this page opens it.
Where can I order the SN54LS684J?
JLCPCB lists it as part C3210577, with 0 in stock; the sellers' links on this page open their listings.
What can replace the SN54LS684J?
Parts like it in the library: the SN54ALS688J by Texas Instruments and the SNJ54LS682J by Texas Instruments. Check their datasheets: a part that fits the footprint may still differ in its ratings.
