MB86900

{{Infobox CPU

| name = MB86900

| image =

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| produced-start = 1986

| produced-end =

| slowest = 16.67

| fastest =

| slow-unit = MHz

| fast-unit = MHz

| fsb-slowest =

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| size-from =

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| soldby =

| designfirm = Fujitsu

| manuf1 =

| core1 =

| sock1 =

| pack1 =

| arch = SPARC V7

| microarch =

| numcores = 1

}}

The MB86900 is a microprocessor produced by Fujitsu,{{cite web |title=Fujitsu to take ARM into the realm of Super |url=http://www.cpushack.com/2016/06/21/fujitsu-to-take-arm-into-the-realm-of-super/ |website=The CPU Shack Museum |date=June 21, 2016 |accessdate=30 June 2019}} 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.{{cite web |title=Fujitsu SPARC |url=http://www.cpu-collection.de/?tn=0&l0=cl&l1=SPARC&l2=Fujitsu |website=cpu-collection.de |accessdate=30 June 2019}}{{cite web |title=Timeline |url=https://sparc.org/timeline/ |website=SPARC International |accessdate=30 June 2019}} 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.