This is a replacement PLA for your Commodore 64 system
The PLA20V8 is a PLA that consists of two GAL20V8B chips from Lattice Semiconductor.
- Works with Super Zaxxon, Epyx fast load, custom and alternative KERNALS
- Fully programmed, soldered and assembled. Genuine Lattice GAL20V8B-25 ICs.
- IC Socket has gold plated rounded pins for easier insertion and better connectivity.
Take care when inserting the replacement and so not bend the gold pins which can snap is bent too much.
Build details and more info available here:
https://www.freepascal.org/~daniel/c64pla/
Quote from above site: "Does it work in all C64 mainboards?
Yes, except for the short board assy 250469 of course, because it uses a completely different type of chip. Assy 326298, 250407, 250425, 250466, 251103 (SX64) and C64 Reloaded MK1 have been tested. Assy 250441 and KU-14194HB have not been tested yet, but from what I know about these boards, I am confident about compatibility. Both PAL and NTSC tests have been done."
Some soldering may be required if your C64 does not have a socket for the PLA chip.