Difference between revisions of "Sega Mega Drive/Hardware revisions"
From Sega Retro
old>GerbilSoft (Undo revision 136473 by GerbilSoft (Talk) Some MDs don't have the same chips.) |
old>GerbilSoft |
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*Z80 memory: NEC D4168C-15 (8Kx8 XRAM, 150 ns) | *Z80 memory: NEC D4168C-15 (8Kx8 XRAM, 150 ns) | ||
*I/O chips: Sega 315-5308, Sega 315-5309, Sega 315-5345 (DIP-16) | *I/O chips: Sega 315-5308, Sega 315-5309, Sega 315-5345 (DIP-16) | ||
| − | *VDP: Sega 315-5313 ( | + | *VDP: Sega 315-5313 (Yamaha YM7101) |
*Video RAM: 2x [NUMBER PLEASE] (64Kx4 DRAM) | *Video RAM: 2x [NUMBER PLEASE] (64Kx4 DRAM) | ||
*Headphone amp: Sony CXA1034 | *Headphone amp: Sony CXA1034 | ||
| Line 25: | Line 25: | ||
*Z80 memory: MB8464A-10 (8Kx8 SRAM, 100 ns) | *Z80 memory: MB8464A-10 (8Kx8 SRAM, 100 ns) | ||
*I/O chip: Sega 315-5433 | *I/O chip: Sega 315-5433 | ||
| − | *VDP: Sega 315-5313 ( | + | *VDP: Sega 315-5313 (Yamaha YM7101) |
*Video RAM: 2x [NUMBER PLEASE] (64Kx4 DRAM) | *Video RAM: 2x [NUMBER PLEASE] (64Kx4 DRAM) | ||
*Headphone amp: Sony CXA1034 | *Headphone amp: Sony CXA1034 | ||
Revision as of 21:51, 15 January 2010
Model 1
VA2: USA, High Definition Graphics
Components:
- M68K CPU: Signetics SCN68000C8N64
- M68K memory: 2x TC51832SPL-12 (32Kx8 PSRAM, 120 ns)
- Z80 CPU: Zilog Z0840004PSC
- 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 (Yamaha YM7101)
- Video RAM: 2x [NUMBER PLEASE] (64Kx4 DRAM)
- Headphone amp: Sony CXA1034
- Video encoder: Sony CXA1145
- FM synthesizer: Yamaha YM2612
VA6: USA, High Definition Graphics
Components:
- M68K CPU: Motorola MC68000P8
- M68K memory: 2x HM652568LSP-10 (32Kx8 PSRAM, 100 ns)
- Z80 CPU: Zilog Z0840004PSC
- Z80 memory: MB8464A-10 (8Kx8 SRAM, 100 ns)
- I/O chip: Sega 315-5433
- VDP: Sega 315-5313 (Yamaha YM7101)
- Video RAM: 2x [NUMBER PLEASE] (64Kx4 DRAM)
- Headphone amp: Sony CXA1034
- Video encoder: Sony CXA1145P
- FM synthesizer: Yamaha YM2612