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NSC IDM2901AJC 4-Bit Slice Processor DIP40 2901 CPU National Semiconductor

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Specifications

Type Microprocessor
Manufacturer National Semiconductor
Family NSC 2901
Part number IDM2901AJC
Architecture Bit Slice Processor
Frequency 16 MHz
Socket DIP40

Item Condition

✅ Available now
New old stock.
Unused part, though may show minor signs of long-term storage. Overall clean appearance.
Description:
The IDM2901AJC is a classic 4-bit slice ALU produced by National Semiconductor, a member of the famous 2901 family originally designed by AMD and widely second-sourced, defined bit-slice architectures of the late 1970s and 1980s. This versatile chip was widely used in custom CPUs, minicomputers, and high-speed logic designs, offering powerful parallel processing capabilities. Housed in a ceramic DIP40, it stands out both for its engineering significance and collectible appeal.
✅ Iconic 4-bit bit-slice ALU for building custom processors
✅ Robust ceramic package
✅ A must-have for any retro computing or semiconductor enthusiast.

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