The MB86900 is a microprocessor produced by Fujitsu, ^[1] which implements the SPARC V7 instruction set architecture developed by Sun Microsystems. It was the first implementation of SPARC, introduced in 1986, and was used in the first SPARC-based workstation, the Sun Microsystems Sun-4, from 1987. ^{[2] [3]} Its chipset operated at 16.67 MHz. The chipset consisted of two chips, the MB86900 microprocessor and the MB86910 floating-point unit. The chip set was implemented with two 20,000-gate, 1.2 μm complementary metal–oxide–semiconductor (CMOS) gate-arrays fabricated by Fujitsu Limited.

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References

• Quach, L.; Chueh, R. (1988). "CMOS gate array implementation of SPARC". Thirty-Third IEEE Computer Society International Conference, Digest of Papers.
• Namjoo, M. (1989). "SPARC implementations: ASIC vs. custom design". Proceedings of the Twenty-Second Annual Hawaii International Conference on System Sciences.