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]].
+
Sega Mega Drive Motherboard revisions
 +
==Model 1==
 +
===PAL Model 1 M5===
  
−
== Model 1 ==
+
[[File:Genesis_pal_model1_M5.jpg|thumb|150px|PAL model 1 M5]]
  
−
=== VA1 [IC BD M5 VA1] ===
+
Board label: IC BD M5 PAL
−
<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
+
|+PAL Model 1 M5 IC's
 
|-
 
|-
−
! IC# !! Brand !! Name !! Description !! Documentation
+
| IC# || Brand || Name || Description || Documentation
 
|-
 
|-
−
| IC1 || Signetics || SCN68000C8N64 || 8MHz Processor || -
+
| IC1 || Hitachi || HD68HC000P8 || 8MHz Processor || <center>-</center>
 
|-
 
|-
−
| IC2/IC3 || Toshiba || TC51832SPL-12 || CMOS 256K (32K x 8) Pseudo-SRAM, 12ns || -
+
| IC2/IC3 || Motorola || MCM51L832ASP10 || CMOS 1024 BIT SRAM || <center>-</center>
 
|-
 
|-
−
| IC4 || SEGA || 315-5308 || I/O chip || -
+
| IC4 || SEGA || 315-5433 || ? || <center>-</center>
 
|-
 
|-
−
| IC5 || SEGA || 315-5309 || I/O chip  || -
+
| IC5 || SEGA || 315-5313A || ? || <center>-</center>
 
|-
 
|-
−
| IC6 || Zilog || Z0840004PSC || Zilog Z80 8-bit coprocessor || -
+
| IC6 || Zilog || Z0840004PSC || Zilog Z80 8-bit coprocessor || <center>-</center>
 
|-
 
|-
−
| IC7 || NEC || D4168C-15-SG || 64K (8,192 x 8-BIT) NMOS XRAM || -
+
| IC7 || Fujitsu || MB8464A-10LL-SK || CMOS 65,536 SRAM || <center>-</center>
 
|-
 
|-
−
| IC8 || SEGA ||315-5313 (Yamaha YM7101) || VDP || -
+
| IC8 || ? || ? || ? || <center>-</center>
 
|-
 
|-
−
| IC9/IC10 || ? || ? || Video 256K (64K x 4) DRAM || -
+
| IC9/IC10 || ? || ? || ? || <center>-</center>
 
|-
 
|-
−
| IC11 || Yamaha || YM2612 || frequency modulation synthesizer || -
+
| IC11 || Yamaha || YM2612 || Audio || <center>-</center>
 
|-
 
|-
−
| IC12 || Sony || CXA1034 || Headphone amp || -
+
| IC12 || SONY || CXA1034P || Amplifier || <center>-</center>
 
|-
 
|-
−
| IC13 || ? || ? || ? || -
+
| IC13 || SONY || CXA1145P || Video || <center>-</center>
 
|-
 
|-
−
| IC14 || ? || ? || ? || -
+
| IC14 || ? || ? || ? || <center>-</center>
−
|-
 
−
| 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 ===
+
===Model 1 VA1===
 +
[[File:IC_BD_M5_VA1.jpg|thumb|150px]]Board label: IC BD M5 VA1
  
−
{| class="mw-collapsible mw-collapsed wikitable" style="width: 600px;" style="text-align: center;"
+
{| border="1"
−
! colspan=5 width="600"|List of IC's
+
|+Model 1 VA1 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 || -
+
| IC# || Brand || Name || Description || Documentation
 
|-
 
|-
−
| IC11 || Yamaha | |YM2612 || frequency modulation synthesizer || -
+
| IC1 || Signetics || SCN68000C8N64 || 8MHz Processor || <center>-</center>
 
|-
 
|-
−
| IC12 || Sony || CXA1034 || Headphone amp || -
+
| IC2/IC3 || Toshiba || TC51832SPL-12 || CMOS 256K (32K x 8) Pseudo-SRAM, 12ns || <center>-</center>
 
|-
 
|-
−
| IC13 || Sony || CXA1145P || RGB Encoder || -
+
| IC4 || SEGA || 315-5308 || I/O chip || <center>-</center>
 
|-
 
|-
−
| IC14 || ? || LM358N ||Dual Operational Amplifier || -
+
| IC5 || SEGA || 315-5309 || I/O chip  || <center>-</center>
−
|}
 
−
 
 
−
=== 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
+
| IC6 || Zilog || Z0840004PSC || Zilog Z80 8-bit coprocessor || <center>-</center>
 
|-
 
|-
−
| IC1 || Signetics || SCN68000C8N64 || 8MHz Processor || -
+
| IC7 || NEC || D4168C-15-SG || 64K (8,192 x 8-BIT) NMOS XRAM || style="text-align: center;"| -
 
|-
 
|-
−
| IC2/IC3 || Toshiba || TC51832SPL-12 || CMOS 256K (32K x 8) Pseudo-SRAM, 12ns || -
+
| IC8 || SEGA ||315-5313 (Yamaha YM7101) || VDP || <center>-</center>
 
|-
 
|-
−
| IC4 || SEGA || ? || I/O chip || -
+
| IC9/IC10 || ? || ? || Video 256K (64K x 4) DRAM || <center>-</center>
 
|-
 
|-
−
| IC5 || SEGA || ? || I/O chip  || -
+
| IC11 || Yamaha || YM2612 || frequency modulation synthesizer || <center>-</center>
 
|-
 
|-
−
| IC6 || Zilog || Z0840004PSC || Zilog Z80 8-bit coprocessor || -
+
| IC12 || Sony || CXA1034 || Headphone amp || <center>-</center>
 
|-
 
|-
−
| IC7 || NEC || D4168C-15 || 8,192 x 8-BIT NMOS XRAM, 150 ns || -
+
| IC13 || ? || ? || ? || <center>-</center>
 
|-
 
|-
−
| IC8 || ? ||? || ? || -
+
| IC14 || ? || ? || ? || <center>-</center>
 
|-
 
|-
−
| IC9/IC10 || ? || ? || ? || -
+
| IC15 || ? || ? || ? || <center>-</center>
 
|-
 
|-
−
| IC11 || Yamaha || YM2612 || frequency modulation synthesizer || -
+
| IC16 || Sega || 315-5339 (DIP16) || I/O chip || <center>-</center>
−
|-
 
−
| IC12 || ? || ? || ? || -
 
−
|-
 
−
| IC13 || ? || ? || ? || -
 
−
|-
 
−
| IC14 || ? || ? || ? || -
 
 
|}
 
|}
  
−
=== VA5 ===
 
−
The only difference is the IC4 315-5402.
 
  
−
=== VA6 [IC BD M5 PAL] ===
+
===NTSC Model 1 VA2===
−
<gallery>
+
[[File:IC_BD_M5_USA_VA2.jpg|thumb|150px|NTSC Model 1 VA2]]
−
Genesis_pal_model1_M5.jpg
+
Board label: IC BD M5 USA VA2
−
</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 VA2 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 || ? || ? || ? || -
+
| IC# || Brand || Name || Description || Documentation
−
|}
 
−
 
 
−
=== 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 || Signetics || SCN68000C8N64 || 8MHz Processor || <center>-</center>
 
|-
 
|-
−
| IC1 || Motorola || MC68000P8 || 8MHz Processor || -
+
| IC2/IC3 || Toshiba || TC51832SPL-12 || CMOS 256K (32K x 8) Pseudo-SRAM, 12ns || <center>-</center>
 
|-
 
|-
−
| IC2/IC3 || Motorola || MCM51L832ASP10 || 256Kb (32K x 8-bit) SRAM || -
+
| IC4 || SEGA || 315-5308 || I/O chip || <center>-</center>
 
|-
 
|-
−
| IC4 || SEGA || 315-5433 || I/O chip || -
+
| IC5 || SEGA || 315-5309 || I/O chip || <center>-</center>
 
|-
 
|-
−
| IC5 || SEGA || 315-5313A || I/O chip || -
+
| IC6 || Zilog || Z0840004PSC || Zilog Z80 8-bit coprocessor || <center>-</center>
 
|-
 
|-
−
| IC6 || Zilog || Z0840004PSC || Zilog Z80 8-bit coprocessor || -
+
| IC7 || NEC || D4168C-15 || 8,192 x 8-BIT NMOS XRAM, 150 ns || style="text-align: center;"| -
 
|-
 
|-
−
| IC7 || Samsung || KM6264BL-10 || 64Kb: (8K x 8-bit) SRAM || -
+
| IC8 || SEGA ||315-5313 (Yamaha YM7101) || VDP || <center>-</center>
 
|-
 
|-
−
| IC8 || SEGA || 315-5313 || I/O chip || -
+
| IC9/IC10 || ? || ? || Video 256K (64K x 4) DRAM || <center>-</center>
 
|-
 
|-
−
| IC9/IC10 || Samsung & NEC || KM424C64Z-10 & D41264V-12 || 256K (64K x 4-bit) VRAM & dual-port graphics buffer || -
+
| IC11 || Yamaha || YM2612 || frequency modulation synthesizer || <center>-</center>
 
|-
 
|-
−
| IC11 || Yamaha || YM2612 || Audio || -
+
| IC12 || Sony || CXA1034 || Headphone amp || <center>-</center>
 
|-
 
|-
−
| IC12 || SONY || CXA1034P || Headphone Amplifier || -
+
| IC13 || Sony || CXA1145 || Video encoder || <center>-</center>
 
|-
 
|-
−
| IC13 || SONY || CXA1145P || RGB Video || -
+
| IC14 || ? || ? || ? || <center>-</center>
 
|-
 
|-
−
| IC14 || Hitachi || HA17358 || Dual operational amplifier || -
+
| IC15 || ? || ? || ? || <center>-</center>
 
|-
 
|-
−
| IC15/17 || ? || 7805 || +5 Voltage Regulator || -
+
| IC16 || Sega || 315-5345 (DIP16) || I/O chip || <center>-</center>
 
|}
 
|}
  
−
=== 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 || -
 
−
|}
 
  
 +
===PAL Model 1 VA4===
 +
Board label: IC BD M5 PAL VA4
  
−
{| class="mw-collapsible mw-collapsed wikitable" style="width: 600px;" style="text-align: center;"
+
{| border="1"
−
! colspan=5 width="600"|List of Electrolytic Capacitors
+
|+PAL Model 1 VA4 IC's
−
|-
 
−
! 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
+
| IC# || Brand || Name || Description || Documentation
 
|-
 
|-
−
| CE22 || 10 μF  ||16 V
+
| IC1 || Signetics || SCN68000C8N64 || 8MHz Processor || <center>-</center>
 
|-
 
|-
−
| CE23 || 100 μF  ||10 V
+
| IC2/IC3 || Toshiba || TC51832SPL-12 || CMOS 256K (32K x 8) Pseudo-SRAM, 12ns || <center>-</center>
 
|-
 
|-
−
| CE24 || 47 μF  ||10 V
+
| IC4 || SEGA || ? || I/O chip || <center>-</center>
 
|-
 
|-
−
| CE25 || 47 μF ||10 V
+
| IC5 || SEGA || ? || I/O chip || <center>-</center>
 
|-
 
|-
−
| CE26 || 47 μF  ||10 V
+
| IC6 || Zilog || Z0840004PSC || Zilog Z80 8-bit coprocessor || <center>-</center>
 
|-
 
|-
−
| CE27 || 47 μF  ||10 V
+
| IC7 || NEC || D4168C-15 || 8,192 x 8-BIT NMOS XRAM, 150 ns || style="text-align: center;"| -
 
|-
 
|-
−
| CE28 || 47 μF  ||10 V
+
| IC8 || ? ||? || ? || <center>-</center>
 
|-
 
|-
−
| CE29 || 10 μF  ||16 V
+
| IC9/IC10 || ? || ? || ? || <center>-</center>
 
|-
 
|-
−
| CE30 || 10 μF  ||16 V
+
| IC11 || Yamaha || YM2612 || frequency modulation synthesizer || <center>-</center>
 
|-
 
|-
−
| CE31 || 100 μF  ||10 V
+
| IC12 || ? || ? || ? || <center>-</center>
 
|-
 
|-
−
! Totals !! !!
+
| IC13 || ? || ? || ? || <center>-</center>
 
|-
 
|-
−
| 17 || 10 μF || 16 V
+
| IC14 || ? || ? || ? || <center>-</center>
−
|-
 
−
|  7 || 47 μF || 10 V
 
−
|-
 
−
|  3 || 100 μF || 10 V
 
−
|-
 
−
|  4 || 220 μF || 10 V
 
 
|}
 
|}
  
−
== Model 2 ==
 
  
−
=== VA1 [PC BD MD2 VA1 USA] ===
+
===NTSC Model 1 VA7===
−
<gallery>
+
[[File:PC_BD_M5_USA_VA7.jpg|thumb|150px|NTSC Model 1 VA7]]
−
Model2_va1_motherboard.jpg
 
−
</gallery>
 
  
−
{| class="mw-collapsible mw-collapsed wikitable" style="width: 600px;" style="text-align: center;"
+
Board label: PC BD M5 USA VA7
−
! colspan=5 width="600"|List of IC's
+
 
 +
{| border="1"
 +
|+NTSC Model 1 VA7 IC's
 
|-
 
|-
−
! IC# !! Brand !! Name !! Description !! Documentation
+
| IC# || Brand || Name || Description || Documentation
 
|-
 
|-
−
| IC1 || Motorola || MC68HC000FN8 || Processor || -
+
| IC1 || Motorola || MC68HC000FN8 || Processor || <center>-</center>
 
|-
 
|-
−
| IC2 || Toshiba || TC511632FL-10 || 65,536 Word x 16 Bit Dynamic Ram || -
+
| IC2/IC3 || Sharp || LH5P832N-12 || CMOS 256K (32K x 8) Pseudo-Static RAM || <center>-</center>
 
|-
 
|-
−
| IC3 || ? || ? || ? || -
+
| IC4 || Zilog || Z0840004PSC || Zilog Z80 8-bit coprocessor || <center>-</center>
 
|-
 
|-
−
| IC4 || SEGA || 315-5678 (?) || ? || -
+
| IC5 || Sanyo || LC3564PM || 64K (8192 words x 8 bits) SRAM  || <center>-</center>
 
|-
 
|-
−
| IC5 || Fujitsu || M88464A-10L || 8K Words x 8-Bit (64K) CMOS SRAM Low Power || -
+
| IC6 || SEGA || 315-5487-01 || I/O, Bus arbiter, VDP, ym2612, TMSS || <center>-</center>
 
|-
 
|-
−
| IC6 || SEGA || 315-5660 || ? || -
+
| IC7/IC8 || Hitachi || HM53461ZP-12SG || 65,536-WORDx4-bit Multiport CMOS video ram || style="text-align: center;"| [http://cs.utsource.net/goods_files/pdf/12/122827_HITACHI_HM53461ZP-15.pdf HERE]
 
|-
 
|-
−
| IC7 || OKI || M54C864-80 || 65,536-Word x 8-Bit Multiport DRAM || -
+
| IC9/IC10 || Rohm || BA10324AF || Op-amp || <center>[http://www.datasheetcatalog.org/datasheets/70/233206_DS.pdf HERE]</center>
 
|-
 
|-
−
| IC8 || ? || ? || ? || -
+
| IC11 || SONY || CXA1145M || Video || <center>-</center>
 
|-
 
|-
−
| IC9/IC10 || ? || LM324 || Low power quad op amps || -
+
| IC12 || ? || TA7805S || Voltage regulator || <center>-</center>
−
|-
 
−
| 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] ===
+
==Model 2==
−
<gallery>
 
−
PC_BD_MD2_VA1.8_USA.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
 
−
|-
 
−
| 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] ===
+
===NTSC Model 2 VA1===
−
<gallery>
 
−
Genesis_pal_model2_VA1.8.jpg
 
−
</gallery>
 
  
−
{| class="mw-collapsible mw-collapsed wikitable" style="width: 600px;" style="text-align: center;"
+
[[File:Model2_va1_motherboard.jpg|thumb|150px|NTSC Model 2 VA1]]
−
! colspan=5 width="600"|List of IC's
 
−
|-
 
−
! IC# !! Brand !! Name !! Description !! Documentation
 
−
|-
 
−
| IC1 || Motorola || MC68HC000FN8 || Processor || -
 
−
|-
 
−
| IC2 || ? || 651632DFP-15 || 512K (32K x 16-bit) SRAM  || -
 
−
|-
 
−
| IC3 || ? || ? || ? || -
 
−
|-
 
−
| IC4 || Zilog || Z84C0006FEC || Zilog Z80 8-bit coprocessor || -
 
−
|-
 
−
| IC5 || Rohm || BR6265BF-10SL || 64K (8K x 8-bit) CMOS SRAM || -
 
−
|-
 
−
| IC6 || SEGA || 315-5660 || Custom I/O chip || -
 
−
|-
 
−
| 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 ||  [http://elcodis.com/parts/6023884/MB3514.html#datasheet HERE]
 
−
|-
 
−
| IC12 || ? || 7805 || +5V Voltage regulator || -
 
−
|}
 
  
−
=== VA1.8 [PC BD MD2 VA1.8 ASIA] ===
+
Board label: PC BD MD2 VA1 USA
−
<gallery>
 
−
PC_BD_MD2_VA1.8_ASIA.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 || Toshiba || TC511632FL-10 ||512K (32K x 16-bit) PSRAM, 100 ns ||
+
| IC2 || Toshiba || TC511632FL-10 || 65,536 Word x 16 Bit Dynamic Ram || <center>-</center>
 
|-
 
|-
−
| IC3 || ? || ? || ? || -
+
| IC3 || ? || ? || ? || <center>-</center>
 
|-
 
|-
−
| IC4 || Toshiba || 84C00AU-6 || Z80 8-bit coprocessor || -
+
| IC4 || SEGA || 315-5678 (?) || ? || <center>-</center>
 
|-
 
|-
−
| IC5 || ? || ? || 64K (8Kx8-bit) SRAM || -
+
| IC5 || Fujitsu || M88464A-10L || 8K Words x 8-Bit (64K) CMOS SRAM Low Power || <center>-</center>
 
|-
 
|-
−
| IC6 || Sega || 315-5660 || || -
+
| IC6 || SEGA || 315-5660 || ? || <center>-</center>
 
|-
 
|-
−
| IC7 || Hitachi || HM53861J-8 || 512K (64K x 8-bit) VRAM || -
+
| IC7 || OKI || M54C864-80 || 65,536-Word x 8-Bit Multiport DRAM || <center>-</center>
 
|-
 
|-
−
| IC8 || ? || ? || ? || -
+
| IC8 || ? || ? || ? || <center>-</center>
 
|-
 
|-
−
| IC9/IC10 || Rohm || BA10324AF || ground sense quad op-amp || -
+
| IC9/IC10 || ? || LM324 || Low power quad op amps || <center>-</center>
 
|-
 
|-
−
| IC11 || Fujitsu || MB3514 || RGB Encoder || -
+
| IC11 || SONY || CXA1145M || Video (RGB Encoder) || style="text-align: center;"| [http://pdf1.alldatasheet.com/datasheet-pdf/view/77344/SONY/CXA1145M.html HERE]
 
|-
 
|-
−
| IC12 || || 7805 || Voltage Regulator || -
+
| IC12 || ? || ? || Voltage regulator || <center>-</center>
 
|}
 
|}
  
−
=== VA2 [PC BD MD2 VA2 USA] ===
+
===PAL Model 2 VA1.8===
  
−
{| class="mw-collapsible mw-collapsed wikitable" style="width: 600px;" style="text-align: center;"
+
[[File:Genesis_pal_model2_VA1.8.jpg|thumb|150px|PAL model 2 VA1.8]]
−
! colspan=5 width="600"|List of IC's
 
−
|-
 
−
! IC# !! Brand !! Name !! Description !! Documentation
 
−
|-
 
−
| IC1 || Motorola || MC68HC000FN12 || Processor || <center>-</center>
 
−
|-
 
−
| 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 || <center>-</center>
 
−
|-
 
−
| IC8 || Yamaha || YM2612 || frequency modulation synthesize || -
 
−
|-
 
−
| IC9/IC10 || || || || -
 
−
|-
 
−
| IC11 || || || Voltage Regulator || style="text-align: center;"| -
 
−
|-
 
−
| IC12 || Sega || 315-5684 (Rohm BA6166FS) || SOUND NETWORK/HEADPHONE AMP || -
 
−
|-
 
−
| IC13 || Sanken || SKA2195D || RGB Encoder || -
 
−
|}
 
  
−
=== VA2.3 [PC BD MD2 VA2.3 USA] ===
+
Board label: PC BD MD2 VA1.8 PAL
−
<gallery>
 
−
PC_BD_MD2_VA2.3_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
+
| IC# || Brand || Name || Description || Documentation
 
|-
 
|-
−
| IC1 || Motorola || MC68000FN12 || Processor || -
+
| IC1 || Motorola || MC68HC000FN8 || Processor || <center>-</center>
 
|-
 
|-
−
| IC2 || Toshiba || TC511632FL-10 ||512K (32768 words X 16 bits) Pseudo-SRAM || -
+
| IC2 || ? || 651632DFP-15 || SOP 40W || <center>-</center>
 
|-
 
|-
−
| IC3 || ? || ? || ? || -
+
| IC3 || ? || ? || ? || <center>-</center>
 
|-
 
|-
−
| IC4 || Zilog || Z84C0006FEC || Zilog Z80 8-bit coprocessor || -
+
| IC4 || Zilog || Z84C0006FEC || Zilog Z80 8-bit coprocessor || <center>-</center>
 
|-
 
|-
−
| IC5 || ? || XL J6265AF-10SL || || -
+
| IC5 || ? || ? || ? || <center>-</center>
 
|-
 
|-
−
| 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. || -
+
| IC6 || SEGA || 315-5660 || ? || <center>-</center>
 
|-
 
|-
−
| IC7 || Toshiba || TC5281286J-80 || 1M (128K x 8-bit) VRAM || -
+
| IC7 || Hitachi || HM53861J-8 || RAM chip || <center>-</center>
 
|-
 
|-
−
| IC8 || Yamaha || YM2612 || frequency modulation synthesize || -
+
| IC8 || ? || ? || ? || <center>-</center>
 
|-
 
|-
−
| IC9 || SEGA || 315-5684 (Rohm BA6166FS) || SOUND NETWORK / HEADPHONE AMP || -
+
| IC9/IC10 || Rohm || BA10324AF || ground sense quad op-amp || <center>-</center>
 
|-
 
|-
−
| IC11 || Sony || CXA1645M || RGB Encoder || -
+
| IC11 || Fujitsu || MB3514 || RGB Encoder || style="text-align: center;"| [http://elcodis.com/parts/6023884/MB3514.html#datasheet HERE]
 
|-
 
|-
−
| IC12 || ? || 7805 || +5V voltage regulator || -
+
| IC12 || ? || ? || Voltage regulator || <center>-</center>
−
|-
 
−
| IC13 || ? || 74HC14 || HEX SCHMITT-TRIGGER INVERTER || -
 
 
|}
 
|}
  
−
=== VA3 [PC BD MD2 VA3 USA HAL] ===
+
==Model 3==
−
<gallery>
 
−
PC_BD_MD2_VA3_USA_HAL.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 || Hitachi(?) || 651632DFP-15 ||512K (32K X 16-bits) Pseudo-SRAM || -
 
−
|-
 
−
| IC3 || ? || ? || ? || -
 
−
|-
 
−
| IC4 || Zilog || Z84C0006FEC || Zilog Z80 8-bit coprocessor || -
 
−
|-
 
−
| IC5 || ? || ? || 64K (8K x 8-bit) SRAM || -
 
−
|-
 
−
| IC6 || Sega || 315-5660 || VDP and IO chip all-in-one. || -
 
−
|-
 
−
| IC7 || OKI || M54C864-80 || 512K (64K x 8-bit) VRAM || -
 
−
|-
 
−
| IC8 || ? || ? || ? || -
 
−
|-
 
−
| IC9 || SEGA || 315-5684 (Rohm BA6166FS) || SOUND NETWORK / HEADPHONE AMP || -
 
−
|-
 
−
| IC10 || ? || ? || ? || -
 
−
|-
 
−
| IC11 || Samsung || KA2195D || RGB Encoder || -
 
−
|-
 
−
| IC12 || ? || 7805 || +5V Voltage Regulator || -
 
−
|}
 
  
−
== 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 ==
+
==See Also==
 
*[[Sega Genesis]]
 
*[[Sega Genesis]]
 
*[[Sega Genesis Cartridge]]
 
*[[Sega Genesis Cartridge]]
−
 
 
[[Category:Sega Genesis]]
 
[[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"