Difference between revisions of "Sega Mega Drive/Board Revisions"
From Sonic Retro
GerbilSoft (talk | contribs) (→VA2: USA, High Definition Graphics) |
GerbilSoft (talk | contribs) (→VA6: USA, High Definition Graphics: Chip descriptions.) |
||
| Line 18: | Line 18: | ||
==VA6: USA, High Definition Graphics== | ==VA6: USA, High Definition Graphics== | ||
[[Image:MD1_IC_BD_M5_USA_VA6.jpg|320px]] | [[Image:MD1_IC_BD_M5_USA_VA6.jpg|320px]] | ||
| + | |||
| + | 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 | ||
Revision as of 21:40, 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 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
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