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System: SFC/SNES
Subject: PCB Serials
Version: 20071019
Authors: FitzRoy & Yakushi~Kabuto
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Format
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[Code 1]-[Code 2]-[Code 3]-[Code 4]

Code 1
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BSC: "Broadcast Satellaview-X Cassette."
EA: "Electronic Arts." Sometimes on PCBs of EA game cartridges that were "Assembled in Puerto Rico."
MAXI: "?." Often on PCBs of game cartridges that were "Assembled in Mexico."
SHVC: "Super Home Video Computer." Often on PCBs of game cartridges that were "Made in Japan" or "Made in Mexico."
SNSP: SNES, PAL
WEI: "Williams Entertainment Inc." Sometimes on PCBs of WEI game cartridges that were "Assembled in Mexico."

Code 2
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1***: 1 ROM chip (2Mb, 4Mb, 8Mb, 16Mb, or 32Mb)
Y***: 2 ROM chips (4Mb+2Mb or 4Mb+4Mb)
2***: 2 ROM chips (8Mb+2Mb, 8Mb+4Mb, or 8Mb+8Mb)
B***: 2 ROM chips (16Mb+4Mb, 16Mb+8Mb, or 16Mb+16Mb)
L***: 2 ROM chips (32Mb+8Mb or 32Mb+16Mb)
3***: 3 ROM chips (8Mb+2Mb+2Mb, 8Mb+4Mb+4Mb, 8Mb+8Mb+4Mb, or 8Mb+8Mb+8Mb)

*A**: No special chip (LoROM)
*B**: "DSP-1/2/3/4" special chip (LoROM)
*C**: "Super FX" special chip (LoROM) ?
*CA**: "Super FX" special chip (LoROM) ?
*CB**: "Super FX2" special chip (LoROM)
*DC**: "C4" special chip (LoROM)
*DE**: "Seta 18" special chip (LoROM)
*DH**: "SPC7110" special chip (HiROM)
*DS**: "DSP Seta" special chip (LoROM)
*E**: "OBC1" special chip (LoROM)
*J**: No special chip (HiROM)
*K**: "DSP-1/2/3/4" special chip (HiROM)
*L**: "SA-1" special chip (LoROM)
*N**: "S-DD1" special chip (LoROM)
*PV**: "Prototype Version"

**0*: No SRAM chip
**1*: 1 SRAM chip (16Kb)
**2*: 1 SRAM chip (32Kb)
**3*: 1 SRAM chip (64Kb)
**4*: 1 SRAM chip (128Kb)
**5*: 1 SRAM chip (256Kb)
**6*: 1 SRAM chip (512Kb)
**7*: 1 SRAM chip (512Kb/1MB) ?
**8*: 1 SRAM chip (512Kb/1MB) ?
**9*: 1 EPROM chip (?)

***B: "74LS139" memory address decoder chip for SRAM
***C: "RTC" real-time clock chip
***F: "LH28F020SUT-N80" flash EEPROM chip
***M: "MAD-1" or "MAD-R" memory address decoder chip for SRAM
***N: No memory address decoder chip for SRAM
***P: ?
***R: "S-RTC"  real-time clock chip
***X: "MAD-2" memory address decoder chip for SRAM

****5S: Some "Super FX" games contain 256Kb of RAM for use as a framebuffer area. It is sometimes but not always denoted.
****6S: Some "Super FX" games contain 512Kb of RAM for use as a framebuffer area. It is sometimes but not always denoted.
****7S: Some "Super FX2" games contain 512Kb of RAM for use as a framebuffer area. It is sometimes but not always denoted.

Code 3
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01: PCB version
02: PCB version
03: PCB version
04: PCB version
05: PCB version
06: PCB version
10: PCB version
11: PCB version
12: PCB version
13: PCB version
20: PCB version
21: PCB version
30: PCB version

Code 4 (Only on "EA," "MAXI," and "WEI" PCBs.)
---------------------------------------------
1: ?
2: ?

Miscellaneous Codes
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BSMC-CR-**: "Broadcast Satellaview-X Media Cassette"-"CR"
GPC-RAMC-**: "Game Processor Cassette"-"RAM Cassette"
SGB-N-**: "Super Game Boy"-"N?"
SGB-R-**: "Super Game Boy"-"R?"
SHVC-MMS-**: "Multimedia Station"
SHVC-SGB2-**: "Super Game Boy 2"