“The RP2350B is a very powerful MCU and has 40 GPIOs with 5V tolerant functionality, and the PGA2350 can handle all of those GPIOs at will. All 16-bit address buses and 8-bit data buses of legacy devices such as retro PCs and game consoles can be handled directly from the PIOs. Also, by using 8Mbit PSRAM, it is possible to add dream-like functions if you work hard enough.”
“I am glad I bought two pga2350's just in case. I tried to solder the pins freehand on the first, which never works out with multiple row chips. To factor out all 64 pins, I needed a solderable breadboard without ganging such as the elegoo 32 piece solderable breadboard kit from amazon the redundancy came in handy with the second kit when I stacked three bread boards deep to make an alignment jig that unceremoniously worked the first time.”
