Difference between revisions of "Sega Mega Drive/Genesis Hardware"
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===VA3=== | ===VA3=== | ||
+ | Board label: IC BD M5 USA VA3 (837-7071) | ||
+ | {| border="1" | ||
+ | |+NTSC Model 1 VA3 IC's | ||
+ | |- | ||
+ | |IC# | ||
+ | |Brand | ||
+ | |Name | ||
+ | |Description | ||
+ | |Documentation | ||
+ | |- | ||
+ | |IC1 | ||
+ | |Signetics | ||
+ | |SCN68000C8N64 | ||
+ | |8MHz Processor | ||
+ | | - | ||
+ | |- | ||
+ | |IC2/IC3 | ||
+ | |Toshiba | ||
+ | |TC51832SPL-12 | ||
+ | |CMOS 256K (32K x 8) Pseudo-SRAM, 12ns | ||
+ | | - | ||
+ | |- | ||
+ | |IC4 | ||
+ | |SEGA | ||
+ | |315-5364 | ||
+ | |I/O chip | ||
+ | | - | ||
+ | |- | ||
+ | |IC5 | ||
+ | |SEGA | ||
+ | |315-5309 | ||
+ | |I/O chip | ||
+ | | - | ||
+ | |- | ||
+ | |IC6 | ||
+ | |Zilog | ||
+ | |Z0840004PSC | ||
+ | |Zilog Z80 8-bit coprocessor | ||
+ | | - | ||
+ | |- | ||
+ | |IC7 | ||
+ | |NEC | ||
+ | |D4168C-15-SG | ||
+ | |8,192 x 8-BIT NMOS XRAM, 150 ns | ||
+ | | - | ||
+ | |- | ||
+ | |IC8 | ||
+ | |SEGA | ||
+ | |315-5313 | ||
+ | |I/O chip | ||
+ | | - | ||
+ | |- | ||
+ | |IC9/IC10 | ||
+ | |Fujitsu | ||
+ | |MB81461-12 | ||
+ | |256K (64K x 4-bit) VRAM | ||
+ | | - | ||
+ | |- | ||
+ | |IC11 | ||
+ | |Yamaha | ||
+ | |YM2612 | ||
+ | |frequency modulation synthesizer | ||
+ | | - | ||
+ | |- | ||
+ | |IC12 | ||
+ | |Sony | ||
+ | |CXA1034 | ||
+ | |Headphone amp | ||
+ | | - | ||
+ | |- | ||
+ | |IC13 | ||
+ | |Sony | ||
+ | |CXA1145P | ||
+ | |RGB Encoder | ||
+ | | - | ||
+ | |- | ||
+ | |IC14 | ||
+ | | ? | ||
+ | |LM358N | ||
+ | |Dual Operational Amplifier | ||
+ | | - | ||
+ | |} | ||
+ | [[Category:Sega Genesis]] | ||
+ | [[Category:Hardware]] | ||
+ | |||
===VA4 PAL=== | ===VA4 PAL=== | ||
Board label: IC BD M5 PAL VA4 | Board label: IC BD M5 PAL VA4 |
Revision as of 05:35, 25 May 2013
Sega Mega Drive Motherboard revisions
Contents
Model 1
VA1
Board label: IC BD M5 VA1
IC# | Brand | Name | Description | Documentation |
IC1 | Signetics | SCN68000C8N64 | 8MHz Processor | |
IC2/IC3 | Toshiba | TC51832SPL-12 | CMOS 256K (32K x 8) Pseudo-SRAM, 12ns | |
IC4 | SEGA | 315-5308 | I/O chip | |
IC5 | SEGA | 315-5309 | I/O chip | |
IC6 | Zilog | Z0840004PSC | Zilog Z80 8-bit coprocessor | |
IC7 | NEC | D4168C-15-SG | 64K (8,192 x 8-BIT) NMOS XRAM | - |
IC8 | SEGA | 315-5313 (Yamaha YM7101) | VDP | |
IC9/IC10 | ? | ? | Video 256K (64K x 4) DRAM | |
IC11 | Yamaha | YM2612 | frequency modulation synthesizer | |
IC12 | Sony | CXA1034 | Headphone amp | |
IC13 | ? | ? | ? | |
IC14 | ? | ? | ? | |
IC15 | ? | ? | ? | |
IC16 | Sega | 315-5339 (DIP16) | I/O chip |
VA2 NTSC
Board label: IC BD M5 USA VA2 (837-6992)
IC# | Brand | Name | Description | Documentation |
IC1 | Signetics | SCN68000C8N64 | 8MHz Processor | |
IC2/IC3 | Toshiba | TC51832SPL-12 | CMOS 256K (32K x 8-bit) Pseudo-SRAM, 12ns | |
IC4 | SEGA | 315-5308 | I/O chip | |
IC5 | SEGA | 315-5309 | I/O chip | |
IC6 | Zilog | Z0840004PSC | Zilog Z80 8-bit coprocessor | |
IC7 | NEC | D4168C-15 | 64K (8K x 8) NMOS XRAM, 150 ns | - |
IC8 | SEGA | 315-5313 (Yamaha YM7101) | VDP | |
IC9/IC10 | Samsung & NEC | KM424C64Z-10 & D41264V-12 | 256K (64K x 4-bit) VRAM & Dual-Port Graphics Buffer | |
IC11 | Yamaha | YM2612 | frequency modulation synthesizer (Sound Chip) | HERE |
IC12 | Sony | A1034(CXA1034P/M) | Headphone amp | HERE |
IC13 | Sony | CXA1145 | Video encoder | HERE |
IC14 | Hitachi | HA17358 | dual operational amplifier | HERE |
IC15/IC17 | ? | 7805 | +5V Regulator | |
IC16 | Sega | 315-5345 (DIP16) | I/O chip |
VA3
Board label: IC BD M5 USA VA3 (837-7071)
IC# | Brand | Name | Description | Documentation |
IC1 | Signetics | SCN68000C8N64 | 8MHz Processor | - |
IC2/IC3 | Toshiba | TC51832SPL-12 | CMOS 256K (32K x 8) Pseudo-SRAM, 12ns | - |
IC4 | SEGA | 315-5364 | I/O chip | - |
IC5 | SEGA | 315-5309 | I/O chip | - |
IC6 | Zilog | Z0840004PSC | Zilog Z80 8-bit coprocessor | - |
IC7 | NEC | D4168C-15-SG | 8,192 x 8-BIT NMOS XRAM, 150 ns | - |
IC8 | SEGA | 315-5313 | I/O chip | - |
IC9/IC10 | Fujitsu | MB81461-12 | 256K (64K x 4-bit) VRAM | - |
IC11 | Yamaha | YM2612 | frequency modulation synthesizer | - |
IC12 | Sony | CXA1034 | Headphone amp | - |
IC13 | Sony | CXA1145P | RGB Encoder | - |
IC14 | ? | LM358N | Dual Operational Amplifier | - |
VA4 PAL
Board label: IC BD M5 PAL VA4
IC# | Brand | Name | Description | Documentation |
IC1 | Signetics | SCN68000C8N64 | 8MHz Processor | |
IC2/IC3 | Toshiba | TC51832SPL-12 | CMOS 256K (32K x 8) Pseudo-SRAM, 12ns | |
IC4 | SEGA | ? | I/O chip | |
IC5 | SEGA | ? | I/O chip | |
IC6 | Zilog | Z0840004PSC | Zilog Z80 8-bit coprocessor | |
IC7 | NEC | D4168C-15 | 8,192 x 8-BIT NMOS XRAM, 150 ns | - |
IC8 | ? | ? | ? | |
IC9/IC10 | ? | ? | ? | |
IC11 | Yamaha | YM2612 | frequency modulation synthesizer | |
IC12 | ? | ? | ? | |
IC13 | ? | ? | ? | |
IC14 | ? | ? | ? |
VA5
The only difference is the IC4 315-5402
VA6
The only difference is the IC4 315-5433
Board label: IC BD M5 PAL
IC# | Brand | Name | Description | Documentation |
IC1 | Hitachi | HD68HC000P8 | 8MHz Processor | |
IC2/IC3 | Motorola | MCM51L832ASP10 | CMOS 1024 BIT SRAM | |
IC4 | SEGA | 315-5433 | I/O chip | |
IC5 | SEGA | 315-5313A | I/O chip | |
IC6 | Zilog | Z0840004PSC | Zilog Z80 8-bit coprocessor | |
IC7 | Fujitsu | MB8464A-10LL-SK | CMOS 65,536 SRAM | |
IC8 | ? | ? | ? | |
IC9/IC10 | ? | ? | ? | |
IC11 | Yamaha | YM2612 | Audio | |
IC12 | SONY | CXA1034P | Amplifier | |
IC13 | SONY | CXA1145P | Video | |
IC14 | ? | ? | ? |
VA6.8
VA7 NTSC
Board label: PC BD M5 USA VA7
IC# | Brand | Name | Description | Documentation |
IC1 | Motorola | MC68HC000FN8 | Processor | |
IC2/IC3 | Sharp | LH5P832N-12 | CMOS 256K (32K x 8) Pseudo-Static RAM | |
IC4 | Zilog | Z0840004PSC | Zilog Z80 8-bit coprocessor | |
IC5 | Sanyo | LC3564PM | 64K (8192 words x 8 bits) SRAM | |
IC6 | SEGA | 315-5487-01 | I/O, Bus arbiter, VDP, ym2612, TMSS | |
IC7/IC8 | Hitachi | HM53461ZP-12SG | 65,536-WORDx4-bit Multiport CMOS video ram | HERE |
IC9/IC10 | Rohm | BA10324AF | Op-amp | |
IC11 | SONY | CXA1145M | Video | |
IC12 | ? | TA7805S | Voltage regulator |
Model 2
VA0 PAL
VA1 NTSC
Board label: PC BD MD2 VA1 USA
IC# | Brand | Name | Description | Documentation |
IC1 | Motorola | MC68HC000FN8 | Processor | |
IC2 | Toshiba | TC511632FL-10 | 65,536 Word x 16 Bit Dynamic Ram | |
IC3 | ? | ? | ? | |
IC4 | SEGA | 315-5678 (?) | ? | |
IC5 | Fujitsu | M88464A-10L | 8K Words x 8-Bit (64K) CMOS SRAM Low Power | |
IC6 | SEGA | 315-5660 | ? | |
IC7 | OKI | M54C864-80 | 65,536-Word x 8-Bit Multiport DRAM | |
IC8 | ? | ? | ? | |
IC9/IC10 | ? | LM324 | Low power quad op amps | |
IC11 | SONY | CXA1145M | Video (RGB Encoder) | HERE |
IC12 | ? | ? | Voltage regulator |
VA1 ASIA
VA1.8 NTSC
VA1.8 PAL
Board label: PC BD MD2 VA1.8 PAL
IC# | Brand | Name | Description | Documentation |
IC1 | Motorola | MC68HC000FN8 | Processor | |
IC2 | ? | 651632DFP-15 | SOP 40W | |
IC3 | ? | ? | ? | |
IC4 | Zilog | Z84C0006FEC | Zilog Z80 8-bit coprocessor | |
IC5 | ? | ? | ? | |
IC6 | SEGA | 315-5660 | ? | |
IC7 | Hitachi | HM53861J-8 | RAM chip | |
IC8 | ? | ? | ? | |
IC9/IC10 | Rohm | BA10324AF | ground sense quad op-amp | |
IC11 | Fujitsu | MB3514 | RGB Encoder | HERE |
IC12 | ? | ? | Voltage regulator |
VA1.8 ASIA
VA2
Board label: PC BD MD2 VA2 USA
IC# | Brand | Name | Description | Documentation |
IC1 | Motorola | MC68HC000FN12 | Processor | |
IC2 | Sanyo | LC331632M-12 | 512K (32768 words X 16 bits) Pseudo-SRAM | |
IC3 | Rohm | BA10358 | Dual ground sense operational amplifier | |
IC4 | Zilog | Z84C0006FEC | Zilog Z80 8-bit coprocessor | |
IC5 | ? | XL J6265AF-10SL | ||
IC6 | Sega | 315-5786 (Toshiba T9N13BF) | ||
IC7 | Samsung | KM428C64J-10 | 64K x 8 Bit CMOS Video RAM | |
IC8 | Yamaha | YM2612 | frequency modulation synthesize | |
IC9/IC10 | ||||
IC11 | Voltage Regulator | - | ||
IC12 | Sega | 315-5684 (Rohm BA6166FS) | SOUND NETWORK/HEADPHONE AMP | |
IC13 | Sanken | SKA2195D | RGB Encoder |
VA2.3
VA3
VA4
Model 3
VA1
VA2
Notes
Most of the time the main SEGA IC's are based on/renamed chips from other brands as follows:
- MD1 VA0, VA1, VA2, VA3, VA4, VA5, VA6, VA6.8
- Yamaha YM7101 / FC1001 = Sega 315-5313 / 315-5313A / 315-5313A-01
- MD1 VA7 & MD2 VA0, VA1, VA1.8, VA3
- Yamaha FC1004 = Sega 315-5487 / 315-5487-01 / 315-5487-10 / 315-5660 / 315-5660-02 / 315-5708 / 315-5708-01
- Sega Nomad & some MD2 VA3's
- Yamaha FF1004 = Sega 315-5700
- MD2 VA2, VA2.3
- Toshiba T9N13BF = Sega 315-5786
- Toshiba TC6158AF = ???
- MD2 VA4 & GEN3 VA1
- Yamaha FJ3002 = Sega 315-5960
- GEN3 VA2
- Yamaha FQ8007 = Sega 315-6123