MicroSPARC

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{{Infobox CPU

| name = microSPARC

| image =

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| produced-start = 1992

| produced-end = 1994

| slowest = 40

| fastest = 125

| slow-unit = MHz

| fast-unit = MHz

| fsb-slowest =

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| fsb-fast-unit =

| size-from =

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| soldby =

| designfirm = Sun Microsystems

| manuf1 =

| core1 =

| sock1 =

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| arch = SPARC V8

| microarch =

| numcores = 1

}}

The microSPARC (code-named Tsunami) is a discontinued microprocessor implementing the SPARC V8 instruction set architecture (ISA), developed by Sun Microsystems. It is a low-end microprocessor intended for low-end workstations and embedded systems. The microprocessor was developed by Sun, but the floating-point unit (FPU) was licensed from Meiko Scientific. It contains 800,000 transistors. It was used in the SPARCclassic and SPARCstation LX among others.

There are two variants of the microSPARC-II (code-named Swift): the microSPARC-II and microSPARC-IIep. The microSPARC-II is used in the SPARCstation 5. The microSPARC-IIep is a 100 MHz microSPARC-II with an integrated PCI controller for embedded systems. It was developed and fabricated by LSI Logic for Sun, and used in their JavaStation Network Computer.

class="wikitable sortable"
style="vertical-align: top; font-size: 85%;" ! Name (codename) ! Model ! abbr="Frequency" | Frequency (MHz) ! abbr="Architecture" | Arch. version ! Year ! abbr="Threads" | Total threadsThreads per core × number of cores ! abbr="Process" | Process (μm) ! abbr="Transistors" | Transistors (millions) ! abbr="Size" | Die size (mm²) ! IO Pins ! abbr="Power" | Power (W) ! abbr="Voltage" | Voltage (V) ! abbr="Data cache" | L1 Dcache (k) ! abbr="Instruction cache" | L1 Icache (k) ! abbr="L2 Cache" | L2 Cache (k) ! abbr="L3 Cache" | L3 Cache (k)
microSPARC I (Tsunami) |TI TMS390S10 / TMX390S10 |40–50||V8||1992||1×1=1||0.8||0.8||225?||288||2.5||5||2||4||none||none
microSPARC II (Swift) |Fujitsu MB86904 / Sun STP1012 |60–125||V8||1994||1×1=1||0.5||2.3||233||321||5||3.3||8||16||none||none

Image:TI_microSPARC_I_die.jpg|TI microSPARC I

Image:Sun_microSPARC_II_die.JPG|Sun microSPARC II