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PA-RISC class ICs
PA-RISC information

PA-RISC is a microprocessor architecture developed by Hewlett-Packard's Systems & VLSI Technology Operation. The PA stands for Precision Architecture. The design is also referred to as HP/PA for Hewlett Packard Precision Architecture.

In the late 1980s HP was building two series of computers, both on CISC CPUs. One was the HP-9000 Unix workstations, designs based on the Motorola 68000 family they had acquired when they purchased Apollo. The other was the HP-3000 series minicomputers, based on an HP designed 16-bit CPU. HP was looking to use the PA-RISC to move all of their machines to a single RISC CPU family.

The first PA-RISC 7000 family were 32-bit designs, and were first used in a new series of HP-3000 machines in the late 1980's, the 930 and 950.
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2 PA-RISC chips in collection: hide thumbnails
 HP
  PA-RISC
   PA-RISC 7100LC (PCX-L)
   PA-RISC 7200 (PCX-T')