
Open8-vga motherboard
adham404/Open8-VGA
An 8-bit computer from 74HC logic: microcoded CPU, VGA, PS/2, on-board editor and assembler. Play it in your browser.

The CD74HC02E is a logic Gate made by Texas Instruments in a DIP-14 package with 14 pins. -55℃~+125℃ 1.5V~4.2V 1.9V、4.4V、5.9V 100mV、400mV 2 27ns@4.5V,50pF 2V~6V 2uA 4 5.2mA 5.2mA 500mV~1.8V 74HC Series NOR Gate DIP-14 Logic Gates ROHS.
PCBKit's library has its KiCad symbol (74xx:74HC02, from KiCad's library) and its footprint (Package_DIP:DIP-14_W8.89mm_SMDSocket_LongPads, from KiCad's library), ready for a KiCad board. JLCPCB lists it (part C139414). 2 open-source boards in 2 repositories on GitHub use it.
| Pin | Name | Type |
|---|---|---|
| 1 | — | Output |
| 2 | — | Input |
| 3 | — | Input |
| 4 | — | Output |
| 5 | — | Input |
| 6 | — | Input |
| 7 | GND | Power in |
| 8 | — | Input |
| 9 | — | Input |
| 10 | — | Output |
| 11 | — | Input |
| 12 | — | Input |
| 13 | — | Output |
| 14 | VCC | Power in |

adham404/Open8-VGA
An 8-bit computer from 74HC logic: microcoded CPU, VGA, PS/2, on-board editor and assembler. Play it in your browser.

<iframe src="https://pcbkit.io/embed/parts/ti/CD74HC02E" title="CD74HC02E 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/CD74HC02E.jpg" alt="CD74HC02E" width="1200" height="900">[](https://pcbkit.io/parts/ti/CD74HC02E)Yes. The symbol is 74xx:74HC02 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.
DIP-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 C139414, 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.
2 boards in 2 repositories on GitHub; the most starred are listed on this page, with their KiCad files.