The SN74AS21N is a logic Gate made by Texas Instruments in a PDIP-14 package with 14 pins. 0℃~+70℃ 2 20mA 2V 2mA 4.5V~5.5V 74AS Series 800mV AND Gate PDIP-14 Logic Gates ROHS.
PCBKit's library has its KiCad symbol (EasyEDA_Cloud:SN74LS21N(XBLW), from EasyEDA) and its footprint (Package_DIP:DIP-14_W8.89mm_SMDSocket_LongPads, from KiCad's library), ready for a KiCad board. JLCPCB lists it (part C4471057). 3 open-source boards in 2 repositories on GitHub use it.
| Pin | Name | Type |
|---|---|---|
| 1 | 1A | Unspecified |
| 2 | 1B | Unspecified |
| 3 | NC | Unspecified |
| 4 | 1C | Unspecified |
| 5 | 1D | Unspecified |
| 6 | 1Y | Unspecified |
| 7 | GND | Unspecified |
| 8 | 2Y | Unspecified |
| 9 | 2A | Unspecified |
| 10 | 2B | Unspecified |
| 11 | NC | Unspecified |
| 12 | 2C | Unspecified |
| 13 | 2D | Unspecified |
| 14 | VCC | Unspecified |
flypie/Ace-2019
Reimplimentation of the Jupiter ACE with slightly more modern hardware. https://www.jupiter-ace.co.uk/ the KiCad versions are the up to date designs which are available at https://jupiterdeuce.blogspot.com and…
flypie/Ace-2019
Reimplimentation of the Jupiter ACE with slightly more modern hardware. https://www.jupiter-ace.co.uk/ the KiCad versions are the up to date designs which are available at https://jupiterdeuce.blogspot.com and…
<iframe src="https://pcbkit.io/embed/parts/ti/SN74AS21N" title="SN74AS21N 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/SN74AS21N.jpg" alt="SN74AS21N" width="1200" height="900">[](https://pcbkit.io/parts/ti/SN74AS21N)Yes. The symbol is EasyEDA_Cloud:SN74LS21N(XBLW) and the footprint Package_DIP:DIP-14_W8.89mm_SMDSocket_LongPads, both drawn on this page. PCBKit places them on a board for you when you design with it.
PDIP-14, with 14 pins. Its footprint is drawn on this page.
Texas Instruments publishes it: the Datasheet link on this page opens it.
JLCPCB lists it as part C4471057, with 0 in stock; the sellers' links on this page open their listings.
Parts like it in the library: the CD4093BE by Texas Instruments, the CD4078BE by HGSEMI, the CD4093BE(XBLW) by XBLW and the CD4030BE by Texas Instruments. Check their datasheets: a part that fits the footprint may still differ in its ratings.
3 boards in 2 repositories on GitHub; the most starred are listed on this page, with their KiCad files.
