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1991: Fujitsu
  week 04, 1991: Fujitsu SPARC MB86902
  week 21, 1991: Fujitsu SPARC MB86903-40
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Fujitsu SPARC MB86902
Fujitsu SPARC MB86902 Top Side
9104 S24
Fujitsu SPARC MB86902 Back Side
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In June 1990 Fujitsu has announced a SPARC processor optimized for embedded control. The MB86902 is derived from the 86901, which is the processor used in the SPARCstation 1.
The 86902 is compatible with Fujitsu's 86920 MMU and Weitek's 3170 FPU. No integrated cache support is available, however. It is packaged in a 160-pin PQFP, and was available in 20- and 25-MHz versions.
The MB86902 was used in Sun SPARCstation IPC machines.
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Core Frequency:25 MHz
Board Frequency:25 MHz
Data bus (ext.):32 Bit
Address bus:32 Bit
Manufactured:week 04/1991
Made in:Japan
Package Type:Plastic
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Fujitsu SPARC MB86903-40
Fujitsu SPARC MB86903-40 Top Side
9121 Q00
Fujitsu SPARC MB86903-40 Back Side
The MB86903 is Fujitsu's third-generation SPARC processor. It includes an on-chip floating-point unit and operates at 33 and 40 MHz. It provides an integer performance of 20 and 25 MIPS and a floating-point performance of 4 and 5 MFLOPS. The integer unit, based on Version 7 of the SPARC architecture, has a single-pulse clock input, 136 registers organized into eight windows, a 4-stage pipeline to handle data interlocks, and an optimized branch handler.
This processor is from my Sun SPARCstation IPX (4/50) 'Hobbes' from 1991.
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Core Frequency:40 MHz
Data bus (ext.):32 Bit
Address bus:32 Bit
Manufactured:week 21/1991
Made in:Japan
Package Type:Ceramic
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