Sega Mega Drive/Genesis Hardware
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Motherboard
NTSC Model 1 VA7
Board label: PC BD M5 USA VA7
| IC# | Brand | Name | Description | Documentation |
| IC1 | Motorola | MC68HC000FN8 | Processor | |
| IC2/IC3 | Sharp | LH5P832N-12 | ? | |
| IC4 | Zilog | Z0840004PSC | Zilog Z80 8-bit coprocessor. 6502 instruction set. | |
| IC5 | Sanyo | LC3564PM | ? | |
| IC6 | SEGA | 315-5487-01 | ? | |
| IC7/IC8 | ? | HM53461ZP-12SG | ? | |
| IC9/IC10 | ? | BA10324AF | ? | |
| IC11 | SONY | CXA1145M | Video | |
| IC12 | ? | TA7805S | Voltage regulator |
NTSC Model 2 VA1
Board label: PC BD MD2 VA1 USA
| IC# | Brand | Name | Description | Documentation |
| IC1 | Motorola | MC68HC000FN8 | Processor | |
| IC2 | Toshiba | TC511632FL-10 | ? | |
| IC3 | ? | ? | ? | |
| IC4 | SEGA | 315-5678 (?) | ? | |
| IC5 | ? | M88464A-10L | ? | |
| IC6 | SEGA | 315-5660 | ? | |
| IC7 | OKI | M54C864-80 | ? | |
| IC8 | ? | ? | ? | |
| IC9/IC10 | ? | ? | ? | |
| IC11 | SONY | CXA1145M | Video | |
| IC12 | ? | ? | Voltage regulator |
