4 layers88.3 × 54.6 mm

1005-Flash Programmer
wilsondr9999/1005-Flash-Programmer
Flash Programmer for SST39 Flash ROMs
36 parts2AGPL-3.0
KiCad boards from 1 GitHub repository tagged “sst39”, the most starred first; open any of them in PCBKit.

wilsondr9999/1005-Flash-Programmer
Flash Programmer for SST39 Flash ROMs