2 layers125.7 × 33 mm

SRAM Board 2MB
kr239/A500-SRAM-Board
Replace the old 44256 DRAM chips on your A500 with newer SRAM memory
47 parts6GPL-2.0
Boards in 1 GitHub repository, designed in KiCad, that use the 74ABT373CPC by onsemi (-40℃~+85℃ 1.5ns 1ns 2.8ns 32mA 4.5V~5.5V 50uA 64mA 74ABT 8 D Latch Tri-State PDIP-20 Latches ROHS). See how each wires it, with its parts, size, README and files; the 74ABT373CPC’s symbol, footprint and pinout are on its own page.

kr239/A500-SRAM-Board
Replace the old 44256 DRAM chips on your A500 with newer SRAM memory