Editing Sega Mega Drive/Genesis Hardware

Jump to navigation Jump to search

Warning: You are not logged in. Your IP address will be publicly visible if you make any edits. If you log in or create an account, your edits will be attributed to your username, along with other benefits.

The edit can be undone. Please check the comparison below to verify that this is what you want to do, and then save the changes below to finish undoing the edit.
Latest revision Your text
Line 1: Line 1:
−
This page is used to document details of the hardware for the [[Sega Mega Drive/Genesis]].
+
==Motherboard==
  
−
== Model 1 ==
+
===NTSC Model 1 VA7===
  
−
=== VA1 [IC BD M5 VA1] ===
+
Board label: PC BD M5 USA VA7
−
<gallery>
 
−
IC_BD_M5_VA1.jpg
 
−
</gallery>
 
  
−
{| class="mw-collapsible mw-collapsed wikitable" style="width: 600px;" style="text-align: center;"
+
{| border="1"
−
! colspan=5 width="600"|List of IC's
+
|+NTSC Model 1 VA7 IC's
 
|-
 
|-
−
! IC# !! Brand !! Name !! Description !! Documentation
+
| IC# || Brand || Name || Description || Documentation
 
|-
 
|-
−
| IC1 || Signetics || SCN68000C8N64 || 8MHz Processor || -
+
| IC1 || Motorola || MC68HC000FN8 || Processor || <center>-</center>
 
|-
 
|-
−
| IC2/IC3 || Toshiba || TC51832SPL-12 || CMOS 256K (32K x 8) Pseudo-SRAM, 12ns || -
+
| IC2/IC3 || Sharp || LH5P832N-12 || ? || <center>-</center>
 
|-
 
|-
−
| IC4 || SEGA || 315-5308 || I/O chip || -
+
| IC4 || Zilog || Z0840004PSC || Zilog Z80 8-bit coprocessor || <center>-</center>
 
|-
 
|-
−
| IC5 || SEGA || 315-5309 || I/O chip  || -
+
| IC5 || Sanyo || LC3564PM || ? || <center>-</center>
 
|-
 
|-
−
| IC6 || Zilog || Z0840004PSC || Zilog Z80 8-bit coprocessor || -
+
| IC6 || SEGA || 315-5487-01 || ? || <center>-</center>
 
|-
 
|-
−
| IC7 || NEC || D4168C-15-SG || 64K (8,192 x 8-BIT) NMOS XRAM || -
+
| IC7/IC8 || ? || HM53461ZP-12SG || ? || <center>-</center>
 
|-
 
|-
−
| IC8 || SEGA ||315-5313 (Yamaha YM7101) || VDP || -
+
| IC9/IC10 || ? || BA10324AF || Op-amp || <center>-</center>
 
|-
 
|-
−
| IC9/IC10 || ? || ? || Video 256K (64K x 4) DRAM || -
+
| IC11 || SONY || CXA1145M || Video || <center>-</center>
 
|-
 
|-
−
| IC11 || Yamaha || YM2612 || frequency modulation synthesizer || -
+
| IC12 || ? || TA7805S || Voltage regulator || <center>-</center>
−
|-
 
−
| IC12 || Sony || CXA1034 || Headphone amp || -
 
−
|-
 
−
| IC13 || ? || ? || ? || -
 
−
|-
 
−
| IC14 || ? || ? || ? || -
 
−
|-
 
−
| IC15 || ? || ? || ? || -
 
−
|-
 
−
| IC16 || Sega || 315-5339 (DIP16) || I/O chip || -
 
−
|}
 
−
 
 
−
=== VA2 [IC BD M5 USA VA2] 837-6992 ===
 
−
<gallery>
 
−
IC_BD_M5_USA_VA2.jpg
 
−
</gallery>
 
−
 
 
−
{| class="mw-collapsible mw-collapsed wikitable" style="width: 600px;" style="text-align: center;"
 
−
! colspan=5 width="600"|List of IC's
 
−
|-
 
−
! 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) ||  [http://en.wikipedia.org/wiki/Yamaha_YM2612 HERE]
 
−
|-
 
−
| IC12 || Sony || A1034(CXA1034P/M)|| Headphone amp || [http://www.datasheetcatalog.org/datasheet/sony/06800809.pdf HERE]
 
−
|-
 
−
| IC13 || Sony || CXA1145 || Video encoder || [http://pdf1.alldatasheet.com/datasheet-pdf/view/77343/SONY/CXA1145P.html HERE]
 
−
|-
 
−
| IC14 || Hitachi || HA17358 || dual operational amplifier || [http://www.datasheetcatalog.org/datasheet/HitachiSemiconductor/mXqyszx.pdf HERE]
 
−
|-
 
−
| IC15/IC17 || ? || 7805 || +5V Regulator || -
 
−
|-
 
−
| IC16 || Sega || 315-5345 (DIP16) || I/O chip || -
 
−
|}
 
−
 
 
−
=== VA3 [IC BD M5 USA VA3] 837-7071 ===
 
−
 
 
−
{| class="mw-collapsible mw-collapsed wikitable" style="width: 600px;" style="text-align: center;"
 
−
! colspan=5 width="600"|List of 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 || -
 
−
|}
 
−
 
 
−
=== VA4 [IC BD M5 PAL VA4] ===
 
−
 
 
−
{| class="mw-collapsible mw-collapsed wikitable" style="width: 600px;" style="text-align: center;"
 
−
! colspan=5 width="600"|List of 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 || ? || 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 [IC BD M5 PAL] ===
 
−
<gallery>
 
−
Genesis_pal_model1_M5.jpg
 
−
</gallery>
 
−
 
 
−
{| class="mw-collapsible mw-collapsed wikitable" style="width: 600px;" style="text-align: center;"
 
−
! colspan=5 width="600"|List of IC's
 
−
|-
 
−
! 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 [IC BD M5 USA VA6] ===
 
−
 
 
−
{| class="mw-collapsible mw-collapsed wikitable" style="width: 600px;" style="text-align: center;"
 
−
! colspan=5 width="600"|List of IC's
 
−
|-
 
−
! IC# !! Brand !! Name !! Description !! Documentation
 
−
|-
 
−
| IC1 || Motorola || MC68000P8 || 8MHz Processor || -
 
−
|-
 
−
| IC2/IC3 || Motorola || MCM51L832ASP10 || 256Kb (32K x 8-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 || Samsung || KM6264BL-10 || 64Kb: (8K x 8-bit) SRAM || -
 
−
|-
 
−
| IC8 || SEGA || 315-5313 || I/O chip || -
 
−
|-
 
−
| IC9/IC10 || Samsung & NEC || KM424C64Z-10 & D41264V-12 || 256K (64K x 4-bit) VRAM & dual-port graphics buffer || -
 
−
|-
 
−
| IC11 || Yamaha || YM2612 || Audio || -
 
−
|-
 
−
| IC12 || SONY || CXA1034P || Headphone Amplifier || -
 
−
|-
 
−
| IC13 || SONY || CXA1145P || RGB Video || -
 
−
|-
 
−
| IC14 || Hitachi || HA17358 || Dual operational amplifier || -
 
−
|-
 
−
| IC15/17 || ? || 7805 || +5 Voltage Regulator || -
 
−
|}
 
−
 
 
−
=== VA7 [PC BD M5 USA VA7] 171-6217-11 ===
 
−
<gallery>
 
−
PC_BD_M5_USA_VA7.jpg
 
−
</gallery>
 
−
 
 
−
The VA7 is almost a Genesis 2 PCB in a Genesis 1 case. It even shares the same PCB prefix (PC).
 
−
 
 
−
{| class="mw-collapsible mw-collapsed wikitable" style="width: 600px;" style="text-align: center;"
 
−
! colspan=5 width="600"|List of IC's
 
−
|-
 
−
! IC# !! Brand !! Name !! Description !! Documentation
 
−
|-
 
−
| IC1 || Motorola || MC68HC000FN8 || Processor || -
 
−
|-
 
−
| IC2/IC3 || Hitachi || HM65256BLFP-10T || CMOS 256K (32K x 8) High Speed Pseudo-Static RAM || [http://pdf1.alldatasheet.com/datasheet-pdf/view/136263/HITACHI/HM65256BLFP-10T.html HERE]
 
−
|-
 
−
| IC4 || Zilog || Z0840004PSC || Zilog Z80 8-bit coprocessor || -
 
−
|-
 
−
| IC5 || Fujitsu || MB8464A-10L || 64K (8192 words x 8 bits) Low Power 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 || [http://cs.utsource.net/goods_files/pdf/12/122827_HITACHI_HM53461ZP-15.pdf HERE]
 
−
|-
 
−
| IC9/IC10 || Rohm || BA10324AF || Op-amp || [http://www.datasheetcatalog.org/datasheets/70/233206_DS.pdf HERE]
 
−
|-
 
−
| IC11 || SONY || CXA1145M || Video || -
 
−
|-
 
−
| IC12 || Toshiba || TA7805S || +5V Voltage regulator || -
 
−
|}
 
−
 
 
−
 
 
−
{| class="mw-collapsible mw-collapsed wikitable" style="width: 600px;" style="text-align: center;"
 
−
! colspan=5 width="600"|List of Electrolytic Capacitors
 
−
|-
 
−
! CE# !! Capacitance !! Voltage
 
−
|-
 
−
| CE1 ||  10 μF  ||16 V
 
−
|-
 
−
| CE2 ||  10 μF  ||16 V
 
−
|-
 
−
| CE3 ||  10 μF  ||16 V
 
−
|-
 
−
| CE4 ||  10 μF  ||16 V
 
−
|-
 
−
| CE5 ||  10 μF  ||16 V
 
−
|-
 
−
| CE6 ||  10 μF  ||16 V
 
−
|-
 
−
| CE7 ||  10 μF  ||16 V
 
−
|-
 
−
| CE8 ||  10 μF  ||16 V
 
−
|-
 
−
| CE9 ||  220 μF  ||10 V
 
−
|-
 
−
| CE10 ||  220 μF  ||10 V
 
−
|-
 
−
| CE11 ||  10 μF  ||16 V
 
−
|-
 
−
| CE12 ||  220 μF  ||10 V
 
−
|-
 
−
| CE13 ||  10 μF  ||16 V
 
−
|-
 
−
| CE14 ||  10 μF  ||16 V
 
−
|-
 
−
| CE15 ||  10 μF  ||16 V
 
−
|-
 
−
| CE16 ||  220 μF  ||16 V
 
−
|-
 
−
| CE17 ||  100 μF  ||10 V
 
−
|-
 
−
| CE18 ||  47 μF  ||10 V
 
−
|-
 
−
| CE19 ||  47 μF  ||10 V
 
−
|-
 
−
| CE20 ||  10 μF  ||16 V
 
−
|-
 
−
| CE21 ||  10 μF  ||16 V
 
−
|-
 
−
| CE22 ||  10 μF  ||16 V
 
−
|-
 
−
| CE23 ||  100 μF  ||10 V
 
−
|-
 
−
| CE24 ||  47 μF  ||10 V
 
−
|-
 
−
| CE25 ||  47 μF  ||10 V
 
−
|-
 
−
| CE26 ||  47 μF  ||10 V
 
−
|-
 
−
| CE27 ||  47 μF  ||10 V
 
−
|-
 
−
| CE28 ||  47 μF  ||10 V
 
−
|-
 
−
| CE29 ||  10 μF  ||16 V
 
−
|-
 
−
| CE30 ||  10 μF  ||16 V
 
−
|-
 
−
| CE31 ||  100 μF  ||10 V
 
−
|-
 
−
! Totals !! !!
 
−
|-
 
−
| 17 || 10 μF || 16 V
 
−
|-
 
−
|  7 || 47 μF || 10 V
 
−
|-
 
−
|  3 || 100 μF || 10 V
 
−
|-
 
−
|  4 || 220 μF || 10 V
 
−
|}
 
−
 
 
−
== Model 2 ==
 
−
 
 
−
=== VA1 [PC BD MD2 VA1 USA] ===
 
−
<gallery>
 
−
Model2_va1_motherboard.jpg
 
−
</gallery>
 
−
 
 
−
{| class="mw-collapsible mw-collapsed wikitable" style="width: 600px;" style="text-align: center;"
 
−
! colspan=5 width="600"|List of IC's
 
−
|-
 
−
! 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) ||  [http://pdf1.alldatasheet.com/datasheet-pdf/view/77344/SONY/CXA1145M.html HERE]
 
−
|-
 
−
| IC12 || ? || ? || Voltage regulator || -
 
 
|}
 
|}
  
−
=== VA1.8 [PC BD MD2 VA1.8 USA] ===
+
===NTSC Model 2 VA1===
−
<gallery>
 
−
PC_BD_MD2_VA1.8_USA.jpg
 
−
</gallery>
 
  
−
{| class="mw-collapsible mw-collapsed wikitable" style="width: 600px;" style="text-align: center;"
+
[[File:Model2_va1_motherboard.jpg|thumb|NTSC Model 2 VA1]]
−
! colspan=5 width="600"|List of IC's
 
−
|-
 
−
! IC# !! Brand !! Name !! Description !! Documentation
 
−
|-
 
−
| IC2 || Hitachi / Sanyo || 651632DFP-15 / LC331632M-12 || 512K (32K x 16-bit) SRAM  || -
 
−
|-
 
−
| IC3 || ? || ? || ? || -
 
−
|-
 
−
| IC4 || Zilog || Z84C0006FEC || Zilog Z80 8-bit coprocessor || -
 
−
|-
 
−
| IC5 || Rohm || XLJ6265AF-10SL || 64K (8K x 8-bit) CMOS SRAM || -
 
−
|-
 
−
| IC6 || SEGA || 315-5660 || Custom I/O chip || -
 
−
|-
 
−
| IC7 || Samsung || KM428C64J-10 || 512K (64K x 8-bit) VRAM || -
 
−
|-
 
−
| IC8 || ? || ? || ? || -
 
−
|-
 
−
| IC9/IC10 || Rohm || BA10324AF || ground sense quad op-amp || -
 
−
|-
 
−
| IC11 || Sony / Samsung || CXA1145M / KA2195D || RGB Encoder NTSC+PAL / NTSC only || [http://elcodis.com/parts/6023884/MB3514.html#datasheet HERE]
 
−
|-
 
−
| IC12 || ? || 7805 || +5V Voltage regulator || -
 
−
|}
 
  
−
=== VA1.8 [PC BD MD2 VA1.8 PAL] ===
+
Board label: PC BD MD2 VA1 USA
−
<gallery>
 
−
Genesis_pal_model2_VA1.8.jpg
 
−
</gallery>
 
  
−
{| class="mw-collapsible mw-collapsed wikitable" style="width: 600px;" style="text-align: center;"
+
{| border="1"
−
! colspan=5 width="600"|List of IC's
+
|+NTSC Model 2 VA1 IC's
 
|-
 
|-
−
! IC# !! Brand !! Name !! Description !! Documentation
+
| IC# || Brand || Name || Description || Documentation
 
|-
 
|-
−
| IC1 || Motorola || MC68HC000FN8 || Processor || -
+
| IC1 || Motorola || MC68HC000FN8 || Processor || <center>-</center>
 
|-
 
|-
−
| IC2 || ? || 651632DFP-15 || 512K (32K x 16-bit) SRAM  || -
+
| IC2 || Toshiba || TC511632FL-10 || ? || <center>-</center>
 
|-
 
|-
−
| IC3 || ? || ? || ? || -
+
| IC3 || ? || ? || ? || <center>-</center>
 
|-
 
|-
−
| IC4 || Zilog || Z84C0006FEC || Zilog Z80 8-bit coprocessor || -
+
| IC4 || SEGA || 315-5678 (?) || ? || <center>-</center>
 
|-
 
|-
−
| IC5 || Rohm || BR6265BF-10SL || 64K (8K x 8-bit) CMOS SRAM || -
+
| IC5 || ? || M88464A-10L || ? || <center>-</center>
 
|-
 
|-
−
| IC6 || SEGA || 315-5660 || Custom I/O chip || -
+
| IC6 || SEGA || 315-5660 || ? || <center>-</center>
 
|-
 
|-
−
| IC7 || Hitachi || HM53861J-8 || 512K (64K x 8-bit) VRAM || -
+
| IC7 || OKI || M54C864-80 || ? || <center>-</center>
 
|-
 
|-
−
| IC8 || ? || ? || ? || -
+
| IC8 || ? || ? || ? || <center>-</center>
 
|-
 
|-
−
| IC9/IC10 || Rohm || BA10324AF || ground sense quad op-amp || -
+
| IC9/IC10 || ? || ? || ? || <center>-</center>
 
|-
 
|-
−
| IC11 || Fujitsu || MB3514 || RGB Encoder || [http://elcodis.com/parts/6023884/MB3514.html#datasheet HERE]
+
| IC11 || SONY || CXA1145M || Video || <center>-</center>
 
|-
 
|-
−
| IC12 || ? || 7805 || +5V Voltage regulator || -
+
| IC12 || ? || ? || Voltage regulator || <center>-</center>
 
|}
 
|}
  
−
=== VA1.8 [PC BD MD2 VA1.8 ASIA] ===
+
===PAL Model 1 M5===
−
<gallery>
 
−
PC_BD_MD2_VA1.8_ASIA.jpg
 
−
</gallery>
 
  
−
{| class="mw-collapsible mw-collapsed wikitable" style="width: 600px;" style="text-align: center;"
+
[[File:Genesis_pal_model1_M5.jpg|thumb|PAL model 1 M5]]
−
! colspan=5 width="600"|List of IC's
 
−
|-
 
−
! IC# !! Brand !! Name !! Description !! Documentation
 
−
|-
 
−
| IC1 || Motorola || MC68HC000FN8 || Processor || -
 
−
|-
 
−
| IC2 || Toshiba || TC511632FL-10 ||512K (32K x 16-bit) PSRAM, 100 ns ||
 
−
|-
 
−
| IC3 || ? || ? || ? || -
 
−
|-
 
−
| IC4 || Toshiba || 84C00AU-6 || Z80 8-bit coprocessor || -
 
−
|-
 
−
| IC5 || ? || ? || 64K (8Kx8-bit) SRAM || -
 
−
|-
 
−
| IC6 || Sega || 315-5660 || || -
 
−
|-
 
−
| IC7 || Hitachi || HM53861J-8 || 512K (64K x 8-bit) VRAM || -
 
−
|-
 
−
| IC8 || ? || ? || ? || -
 
−
|-
 
−
| IC9/IC10 || Rohm || BA10324AF || ground sense quad op-amp || -
 
−
|-
 
−
| IC11 || Fujitsu || MB3514 || RGB Encoder || -
 
−
|-
 
−
| IC12 || || 7805 || Voltage Regulator || -
 
−
|}
 
  
−
=== VA2 [PC BD MD2 VA2 USA] ===
+
Board label: IC BD M5 PAL
  
−
{| class="mw-collapsible mw-collapsed wikitable" style="width: 600px;" style="text-align: center;"
+
{| border="1"
−
! colspan=5 width="600"|List of IC's
+
|+PAL Model 1 M5 IC's
 
|-
 
|-
−
! IC# !! Brand !! Name !! Description !! Documentation
+
| IC# || Brand || Name || Description || Documentation
 
|-
 
|-
−
| IC1 || Motorola || MC68HC000FN12 || Processor || <center>-</center>
+
| IC1 || ? || HD68HC000P8 || Processor || <center>-</center>
 
|-
 
|-
−
| IC2 || Sanyo || LC331632M-12 ||512K (32768 words X 16 bits) Pseudo-SRAM ||
+
| IC2/IC3 || Motorola || MCM51L832ASP10 || RAM || <center>-</center>
 
|-
 
|-
−
| IC3 || Rohm || BA10358 || Dual ground sense operational amplifier || -
+
| IC4 || SEGA || 315-5433 || ? || <center>-</center>
 
|-
 
|-
−
| IC4 || Zilog || Z84C0006FEC || Zilog Z80 8-bit coprocessor || -
+
| IC5 || SEGA || 315-5313A || ? || <center>-</center>
 
|-
 
|-
−
| IC5 || ? || XL J6265AF-10SL || || -
+
| IC6 || Zilog || Z0840004PSC || Zilog Z80 8-bit coprocessor || <center>-</center>
 
|-
 
|-
−
| IC6 || Sega || 315-5786 (Toshiba T9N13BF) || || -
+
| IC7 || ? || M88464A-10LLXS || ? || <center>-</center>
 
|-
 
|-
−
| IC7 || Samsung || KM428C64J-10 || 64K x 8 Bit CMOS Video RAM || <center>-</center>
+
| IC8 || ? || ? || ? || <center>-</center>
 
|-
 
|-
−
| IC8 || Yamaha || YM2612 || frequency modulation synthesize || -
+
| IC9/IC10 || ? || ? || ? || <center>-</center>
 
|-
 
|-
−
| IC9/IC10 || || || || -
+
| IC11 || Yamaha || YM2612 || Audio || <center>-</center>
 
|-
 
|-
−
| IC11 || || || Voltage Regulator || style="text-align: center;"| -
+
| IC12 || SONY || CXA1034P || Amplifier || <center>-</center>
 
|-
 
|-
−
| IC12 || Sega || 315-5684 (Rohm BA6166FS) || SOUND NETWORK/HEADPHONE AMP || -
+
| IC13 || SONY || CXA1145P || Video || <center>-</center>
 
|-
 
|-
−
| IC13 || Sanken || SKA2195D || RGB Encoder || -
+
| IC14 || ? || ? || ? || <center>-</center>
 
|}
 
|}
  
−
=== VA2.3 [PC BD MD2 VA2.3 USA] ===
+
===PAL Model 2 VA1.8===
−
<gallery>
 
−
PC_BD_MD2_VA2.3_USA_HAL.jpg
 
−
</gallery>
 
  
−
{| class="mw-collapsible mw-collapsed wikitable" style="width: 600px;" style="text-align: center;"
+
[[File:Genesis_pal_model2_VA1.8.jpg|thumb|PAL model 2 VA1.8]]
−
! colspan=5 width="600"|List of IC's
 
−
|-
 
−
! IC# !! Brand !! Name !! Description !! Documentation
 
−
|-
 
−
| IC1 || Motorola || MC68000FN12 || Processor || -
 
−
|-
 
−
| IC2 || Toshiba || TC511632FL-10 ||512K (32768 words X 16 bits) Pseudo-SRAM || -
 
−
|-
 
−
| IC3 || ? || ? || ? || -
 
−
|-
 
−
| IC4 || Zilog || Z84C0006FEC || Zilog Z80 8-bit coprocessor || -
 
−
|-
 
−
| IC5 || ? || XL J6265AF-10SL || || -
 
−
|-
 
−
| IC6 || Sega || 315-5786 (Toshiba T9N13BF) || VDP and IO chip all-in-one. Doesn't include the YM2612. Used on MD2 VA2 and VA2.3 board revisions. || -
 
−
|-
 
−
| IC7 || Toshiba || TC5281286J-80 || 1M (128K x 8-bit) VRAM || -
 
−
|-
 
−
| IC8 || Yamaha || YM2612 || frequency modulation synthesize || -
 
−
|-
 
−
| IC9 || SEGA || 315-5684 (Rohm BA6166FS) || SOUND NETWORK / HEADPHONE AMP || -
 
−
|-
 
−
| IC11 || Sony || CXA1645M || RGB Encoder || -
 
−
|-
 
−
| IC12 || ? || 7805 || +5V voltage regulator || -
 
−
|-
 
−
| IC13 || ? || 74HC14 || HEX SCHMITT-TRIGGER INVERTER || -
 
−
|}
 
  
−
=== VA3 [PC BD MD2 VA3 USA HAL] ===
+
Board label: PC BD MD2 VA1.8 PAL
−
<gallery>
 
−
PC_BD_MD2_VA3_USA_HAL.jpg
 
−
</gallery>
 
  
−
{| class="mw-collapsible mw-collapsed wikitable" style="width: 600px;" style="text-align: center;"
+
{| border="1"
−
! colspan=5 width="600"|List of IC's
+
|+PAL Model 2 VA1.8 IC's
−
|-
 
−
! IC# !! Brand !! Name !! Description !! Documentation
 
 
|-
 
|-
−
| IC1 || Motorola || MC68HC000FN8 || Processor || -
+
| IC# || Brand || Name || Description || Documentation
 
|-
 
|-
−
| IC2 || Hitachi(?) || 651632DFP-15 ||512K (32K X 16-bits) Pseudo-SRAM || -
+
| IC1 || Motorola || MC68HC000FN8 || Processor || <center>-</center>
 
|-
 
|-
−
| IC3 || ? || ? || ? || -
+
| IC2 || ? || 651632DFP-15 || ? || <center>-</center>
 
|-
 
|-
−
| IC4 || Zilog || Z84C0006FEC || Zilog Z80 8-bit coprocessor || -
+
| IC3 || ? || ? || ? || <center>-</center>
 
|-
 
|-
−
| IC5 || ? || ? || 64K (8K x 8-bit) SRAM || -
+
| IC4 || Zilog || Z84C0006FEC || Zilog Z80 8-bit coprocessor || <center>-</center>
 
|-
 
|-
−
| IC6 || Sega || 315-5660 || VDP and IO chip all-in-one. || -
+
| IC5 || ? || ? || ? || <center>-</center>
 
|-
 
|-
−
| IC7 || OKI || M54C864-80 || 512K (64K x 8-bit) VRAM || -
+
| IC6 || SEGA || 315-5660 || ? || <center>-</center>
 
|-
 
|-
−
| IC8 || ? || ? || ? || -
+
| IC7 || ? || HM53861J-8 || ? || <center>-</center>
 
|-
 
|-
−
| IC9 || SEGA || 315-5684 (Rohm BA6166FS) || SOUND NETWORK / HEADPHONE AMP || -
+
| IC8 || ? || ? || ? || <center>-</center>
 
|-
 
|-
−
| IC10 || ? || ? || ? || -
+
| IC9/IC10 || ? || BA10324AF || Op-amp || <center>-</center>
 
|-
 
|-
−
| IC11 || Samsung || KA2195D || RGB Encoder || -
+
| IC11 || ? || MB3514 || ? || <center>-</center>
 
|-
 
|-
−
| IC12 || ? || 7805 || +5V Voltage Regulator || -
+
| IC12 || ? || ? || Voltage regulator || <center>-</center>
 
|}
 
|}
−
 
−
== 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
 
−
 
−
== See also ==
 
−
*[[Sega Genesis]]
 
−
*[[Sega Genesis Cartridge]]
 
−
 
−
[[Category:Sega Genesis]]
 
−
[[Category:Hardware]]
 

Please note that all contributions to Game Tech Wiki may be edited, altered, or removed by other contributors. If you do not want your writing to be edited mercilessly, then do not submit it here.
You are also promising us that you wrote this yourself, or copied it from a public domain or similar free resource (see Game Tech Wiki:Copyrights for details). Do not submit copyrighted work without permission!

Cancel Editing help (opens in new window)
Retrieved from "https://www.gametechwiki.com/w/index.php/Sega_Mega_Drive/Genesis_Hardware"