The National IMP-16 is a family of multi-chip 16-bit bit-slice microprocessor developed by National semiconductor and introduced in 1973. The chips were made using PMOS technology. Like the IMP-8, the IMP-16 was designed using 4 IMP-4 4-bit bit-slice logic units and a single control unit. The IMP-16 was later superseded by the PACE and later by the INS8900.
|IMP-16A/521||IMP-16A/421|| Control and Read-only Memory (CROM)|
16-bit standard instruction set
|IMP-16A/522||IMP-16A/421|| Control and Read-only Memory (CROM)|
16-bit extended instruction set
Rockwel was the only 2nd source for the IMP-16 series.
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