The reDIP CIA is an open source FPGA board which combines the following in a DIP-40 size package:
Lattice iCE5LP1K FPGA
1Mbit FLASH
5V tolerant I/O
The reDIP CIA provides an open source hardware platform for MOS 6520 PIA / MOS 6522 VIA / MOS 6526/8520/8521 CIA replacements.
Designs for the iCE5LP1K FPGA can be processed by yosys and nextpnr.