engineering sample samples qualification cpu processor prozessor information mhz pictures core frequency chip packaging info ic x86 museum collection amd cyrix harris ibm idt iit intel motorola nec sgs sgs-thomson siemens ST signetics mhs ti texas instruments ulsi hp umc weitek zilog 4004 4040 8008 808x 8085 8088 8086 80188 80186 80286 286 80386 386 i386 Am386 386sx 386dx 486 i486 586 486sx 486dx overdrive 80187 80287 387 487 pentium 586 5x86 386dlc 386slc 486dx2 mmx ppro pentium-pro pro athlon duron z80 sparc alpha dec dirk oppelt
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: show thumbnails
   PA-RISC 7100LC (PCX-L)
   PA-RISC 7200 (PCX-T')