Description
Replace your PLA with PLAster™ for Commodore 64 U17:
- Acts as fully compatible replacement for the U17 PLA chip in most breadbin/longboard revisions including a few very early C64C models;
- Fully compatible with Super Zaxxon and Epyx Fastload cartridges
- Works in revisions 326298 (original), 250407 (A), 250425 (B), and 250466 (B3);
- Not compatible with short boards, i.e. 250469, since those have a 64-pin mega-PLA;
- Configurable CASRAM delay of 25 or 30ns with DIP switch;
- When C64 version is used in conjunction with BackBit cartridge, allows for software controlled KERNAL replacement (with DIP switch setting);
- “Eyes” switch quiets bus to assist with troubleshooting.
eightbit –
Excellent and easy PLA replacement. I purchased one of these “just in case” around 2 years ago I think. Well, that just in case moment finally arrived. My PLA finally failed partially and carts would not detect in the C64. I removed the failing original PLA and popped this one in. I did have to flip the switch for the CASRAM as the basic screen was all jumbled, but after that it worked like a champ. Cart games work again, all diagnostic tests pass, and the machine is running again. GREAT PLA replacement!