The microSPARC is a microprocessor

Microprocessor

A microprocessor incorporates the functions of a computer's central processing unit on a single integrated circuit, or at most a few integrated circuits. It is a multipurpose, programmable device that accepts digital data as input, processes it according to instructions stored in its memory, and...

 implementing the SPARC V8

SPARC

SPARC is a RISC instruction set architecture developed by Sun Microsystems and introduced in mid-1987....

 instruction set architecture (ISA) developed by Sun Microsystems

Sun Microsystems

Sun Microsystems, Inc. was a company that sold :computers, computer components, :computer software, and :information technology services. Sun was founded on February 24, 1982...

. It was a low-end microprocessor intended for low-end workstation

Workstation

A workstation is a high-end microcomputer designed for technical or scientific applications. Intended primarily to be used by one person at a time, they are commonly connected to a local area network and run multi-user operating systems...

s and embedded system

Embedded system

An embedded system is a computer system designed for specific control functions within a larger system. often with real-time computing constraints. It is embedded as part of a complete device often including hardware and mechanical parts. By contrast, a general-purpose computer, such as a personal...

s. The microprocessor was developed by Sun, but the floating-point unit (FPU) was licensed from Meiko Scientific

Meiko Scientific

Meiko Scientific Ltd. was a British supercomputer company based in Bristol, founded by members of the design team working on the INMOS transputer microprocessor.-History:...

. It contained 800,000 transistors.

There were two derivatives of the microSPARC: the microSPARC-II and microSPARC-IIep. The microSPARC-IIep was a 100 MHz microSPARC-II with an integrated PCI controller for embedded system

Embedded system

An embedded system is a computer system designed for specific control functions within a larger system. often with real-time computing constraints. It is embedded as part of a complete device often including hardware and mechanical parts. By contrast, a general-purpose computer, such as a personal...

s. It was developed and fabricated by LSI Logic for Sun. The microprocessor was used by Sun in their JavaStation

JavaStation

The JavaStation was a Network Computer developed by Sun Microsystems between 1996 and 2000, intended to run only Java applications.The hardware is based on the design of the Sun SPARCstation series, a very successful line of UNIX workstations....

 Network Computer

Network computer

Network Computer is a trademark of Oracle Corporation that was used, from approximately 1996 to 2000, to market a range of diskless desktop computer devices. The devices were designed and manufactured by an alliance, which included Sun Microsystems, IBM, and others...

.

Name (codename)	Model	Frequency (MHz)	Arch. version	Year	Total threads	Process (µm)	Transistors (millions)	Die size (mm²)	IO Pins	Power (W)	Voltage (V)	L1 Dcache (k)	L1 Icache (k)	L2 Cache (k)	L3 Cache (k)
microSPARC I (Tsunami)	TI TMS390S10	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