Ricoh 2A03 / Ricoh 2A07|
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| Produced |
From 1982 to 1994 |
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| Common manufacturer(s) |
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| Max. CPU clock rate |
1.79 MHz |
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| Min. feature size |
6 μm |
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| Instruction set |
MOS 6502 |
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| Cores |
1 |
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| Socket(s) |
- Surface mount dual inline package (DIP)
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The Ricoh 2A03 or RP2A03 (NTSC version) / Ricoh 2A07 or RP2A07 (PAL version) is the 8-bit microprocessor in the Nintendo Entertainment System video game console. It was manufactured by Ricoh. It contained a second source MOS Technology 6502 core, lacking the 6502's binary-coded decimal mode, with 22 memory-mapped I/O registers that controlled Programmable Sound Generators, rudimentary DMA, and game controller polling.[1]
Regional variations
European and Australian versions of the NES used the Ricoh 2A07 or RP2A07 processor, which was identical to the 2A03 except for a different clock divider and the 50 Hz vertical refresh rate used in the PAL television standard.
See also
References
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Nintendo manufactured | |
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| | Launch dates |
- July 15, 1983 (JP)
- October 18, 1985 (NA)
- September 1, 1986 (EU)
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