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ARM8 µarch
General Info
Arch Type	CPU
Designer	ARM Holdings
Manufacturer	TSMC
Introduction	July 8, 1996
Instructions
ISA	ARMv4
Succession
ARM7 ARM9

Historical roadmap leading to the ARM8.

ARM8 is the successor to the ARM7, a low-power performance ARM microarchitecture designed by ARM Holdings for the mobile market. This microarchitecture is designed as an IP core and is sold to other semiconductor companies to be implemented in their own chips.

Architecture

Key changes from ARM7

• ARMv4 (from ARMv3)
• 2x performance (ARM810 vs ARM710 on the same process node)
  • 26% lower CPI (1.4, down from 1.9)
• 0.6 µm process (down from 0.8 µm)
• 1.66x longer pipeline (5 stages, up from 3)

Die

ARM810

• 0.6 µm process
• 3.3 V
  • 0.5 W
• 3-Layer Metal CMOS
• 53.5 mm² (not including pad ring)
• 144 TQFP

Bibliography

• Template:hcbib