SNES repro PCB with 27C322 support - Build your own carts!

It's  a PCB for making SNES games, yey!

This board is designed for building your own SNES games, using the cheaper eprom 27c322 (32mbit) & 27c160 (16mbit)

• New in Rev 4, A few minor tweaks, added DIP through hole alternate pads for 12F629 (SuperCiC)
• New in Rev 5, added pads for 16kb and 256kb sram chips, there are still problems with these, will be fixed
• New in Rev 6, added pads for use with smd passives, 256k sram issue is still not fixed

Confirmed to work on

• Original PAL/NTSC Snes console
• RetroDuo Portable
• Retron5, my pcbs do work but these are weird, some game hacks just don't work on Retron5.
• SupaBoy SFC
• Analogue SuperNT

Stuff that you need

• 2x 1k resistors
• 2x 1N4148 signal diodes 
• 2x 74LS257 or 74HC257 SOIC
• 2x 0.1uf ceramic cap
• 1x 22uf electrolytic cap
• 1x 2N2222 NPN transistor TO-92
• 1x 74LS139 OR 74HC139 DIP
• 1x 2032 battery with solder legs, most 2032 holders are supported but all doesn't fit height wise, the clearance in the snes cart shells is only 6mm.
• 1x SRAM 6216, 6264, 52256, 8bit wide 5volt, both wide and slim packages are supported.
• 1x 12F629 SOIC or DIP preprogrammed with supercic key code, this is for bypassing the lockout feature in unmodified consoles (retron5 and the like doesn't care)
• Super Cic Key code can be found [here](https://sd2snes.de/blog/cool-stuff/supercic)
• 1x 27C322 preprogrammed with a rom, make sure to remove any added header.