2 layers
CompaqportableIII
raymondh2/CompaqPortableIII
Current PCB Memory Expansion board layout is untested. The backplane for the expansion cards is tested and working.
123 parts17
Boards using the SN75477P
2 boardsBoards in 2 GitHub repositories, designed in KiCad, that use the SN75477P by Texas Instruments (0℃~+70℃ 1 100uA 2 300mA 350ns@5V,15pF 4.5V~5.5V TTL-compatible CMOS Unidirectional PDIP-8 Buffers, Drivers, Receivers, Transceivers ROHS). See how each wires it, with its parts, size, README and files; the SN75477P’s symbol, footprint and pinout are on its own page.
- 4 layers304.8 × 215.9 mm
