Difference between revisions of "Sega Mega Drive/Hardware revisions"

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[[Category:Mega Drive Hardware]]
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=Model 1=
 
=Model 1=
  

Revision as of 20:46, 15 January 2010


Model 1

VA2: USA, High Definition Graphics

MD1 IC BD M5 USA VA2.jpg

Components:

  • M68K CPU: Signetics SCN68000C8N64
  • M68K memory: 2x TC51832SPL-12 (32Kx8 PSRAM, 120 ns)
  • Z80 CPU: Zilog Z8040004PSC
  • Z80 memory: NEC D4168C-15 (8Kx8 XRAM, 150 ns)
  • I/O chips: Sega 315-5308, Sega 315-5309, Sega 315-5345 (DIP-16)
  • VDP: Sega 315-5313 (YM-7101)
  • Video RAM: 2x [NUMBER PLEASE] (32x8 DRAM)
  • Headphone amp: Sony CXA1034
  • Video encoder: Sony CXA1145
  • FM synthesizer: Yamaha YM2612

VA6: USA, High Definition Graphics

MD1 IC BD M5 USA VA6.jpg

Components:

  • M68K CPU: Motorola MC68000P8
  • M68K memory: 2x HM652568LSP-10 (32Kx8 PSRAM, 100 ns)
  • Z80 CPU: Zilog Z8040004PSC
  • Z80 memory: MB8464A-10 (8Kx8 XRAM, 100 ns)
  • I/O chip: Sega 315-5433
  • VDP: Sega 315-5313 (YM-7101)
  • Video RAM: 2x [NUMBER PLEASE] (32x8 DRAM)
  • Headphone amp: Sony CXA1034
  • Video encoder: Sony CXA1145P
  • FM synthesizer: Yamaha YM2612
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