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- 23c040
PDF document, 134 KB, for the 23c040 part, catalogued among schematics. The 23C numbering is typical of mask ROMs, with 040 usually meaning 4 Mbit capacity, though the…
Schematic · 134 KB · 1 Aug 2026Schematic pdf—134 KB - 23c020
A 144 KB PDF named 23c020, describing a component in the 23C series, which by usual convention are mask-programmed ROMs; 020 normally corresponds to 2 Mbit.
Schematic · 144 KB · 1 Aug 2026Schematic pdf—144 KB - 23c256
PDF document of 126 KB for a part labelled 23c256. The 23C prefix is typically used for mask-programmed ROMs, with the number pointing to a 256 Kbit size, although the…
Schematic · 126 KB · 1 Aug 2026Schematic pdf—126 KB - 23c040h
A 77.2 KB PDF named 23c040h, a variant of the 23C040 part with an added H suffix whose meaning is not stated in the name and must be read from the document.
Schematic · 77.2 KB · 1 Aug 2026Schematic pdf—77.2 KB