
WildcardXT
skiselev/intel-wildcard-88-motherboard
An IBM PC/XT compatible motherboard utilizing the Intel Wildcard 88 module

The 74F157PC is a signal Switches, Multiplexers, Decoder made by Texas Instruments in a PDIP-16 package with 16 pins. 0℃~+70℃ 1mA 20mA 4.5V~5.5V 74F 7ns@5.0V,50pF Single Supply Tri-state output PDIP-16 Signal Switches, Multiplexers, Decoders ROHS.
PCBKit's library has its KiCad symbol (74xx:74LS157, from KiCad's library) and its footprint (Package_DIP:DIP-16_W8.89mm_SMDSocket_LongPads, from KiCad's library), ready for a KiCad board. JLCPCB lists it (part C3209862). 3 open-source boards in 3 repositories on GitHub use it.
| Pin | Name | Type |
|---|---|---|
| 1 | S | Input |
| 2 | I0a | Input |
| 3 | I1a | Input |
| 4 | Za | Output |
| 5 | I0b | Input |
| 6 | I1b | Input |
| 7 | Zb | Output |
| 8 | GND | Power in |
| 9 | Zc | Output |
| 10 | I1c | Input |
| 11 | I0c | Input |
| 12 | Zd | Output |
| 13 | I1d | Input |
| 14 | I0d | Input |
| 15 | E | Input |
| 16 | VCC | Power in |

skiselev/intel-wildcard-88-motherboard
An IBM PC/XT compatible motherboard utilizing the Intel Wildcard 88 module


Seequa-Computer-Preservation/chameleon_ramplus
A reproduction of the original Chameleon RAMPlus board
<iframe src="https://pcbkit.io/embed/parts/ti/74F157PC" title="74F157PC 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/74F157PC.jpg" alt="74F157PC" width="1200" height="900">[](https://pcbkit.io/parts/ti/74F157PC)Yes. The symbol is 74xx:74LS157 and the footprint Package_DIP:DIP-16_W8.89mm_SMDSocket_LongPads, both drawn on this page. PCBKit places them on a board for you when you design with it.
PDIP-16, with 16 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 C3209862, with 0 in stock; the sellers' links on this page open their listings.
Parts like it in the library: the SN74HC138NED-GMIC by GREENMICRO, the 74HC138N by HGSEMI, the 74HC139N by HGSEMI and the 74HC238N by HGSEMI. Check their datasheets: a part that fits the footprint may still differ in its ratings.
3 boards in 3 repositories on GitHub; the most starred are listed on this page, with their KiCad files.