Check the listing for details. SlimPLA the compact Commodore 64 PLA Replacement PLA20V8 82S100. Listed at 21.00 USD. Wow - Featured on Adrian's Digital Basement ][ YouTube channel: https://youtu.be/De5ufcDueRU&t=2473 Hi and thanks for looking, This is special "compact" version of the "PLA20V8". The schematic is based on the popular open source project https://www.freepascal.org/~daniel/c64pla/ I developed the PCB to make the project compact and to match the look of the replacement IC similar to other ICs on the Commodore PCB. I covered this project development on my YouTube channel: https://youtu.be/cYrtfU3-9h0 I used high quality black PCBs from PCBWay and thin pins to protect DIP sockets in your C64. Professionally assembled and tested on ASSY 326298 motherboard - but the project is unchanged from the original published by Daniel so should work on all except for the short board ASSY 250469