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SNES Chip List

This is a list of chip types that appear on SNES PCBs. Note that this is very likely to be incomplete and there are going to be errors due to the lack of information online about them. This listing is very much influenced by bootgod's NES Cart database, and a lot of the information is derived from there. Many thanks to JAPAN SNES MANIA, who identified some of the manufacturers of these chips.

Chip Type Description Count
MASKROM Read-only memory that stores the game program 25
EPROM Rewritable Read-only memory, generally used on prototypes 2
CIC Nintendo's proprietary lockout chips 11
74LS00 Logic chips that perform transistor-transistor logic 2
74LS139 Logic chips that perform transistor-transistor logic 4
HCU04 Logic chips that perform transistor-transistor logic 1
74HCU04 Logic chips that perform transistor-transistor logic 1
74AC139 Logic chips that perform transistor-transistor logic 1
74AC08 Logic chips that perform transistor-transistor logic 1
MAD-x Logic chips that perform transistor-transistor logic 2
SRAM Static RAM for saving games 17
DSPx Digital signal processor chips 6
SPC7110 A graphics decompression chip. 1
RTC-4513 Real Time Clock 1
MM1026AF Protects SRAM during power on/off 2
SuperFX A RISC processor used for displaying 3D graphics. 4
ST010 A digital signal processor based on the NEC µPD96050. 1
ST011 A digital signal processor based on the NEC µPD96050. 1
ST018 An ARM processor for improving AI 1
SA-1 A 65C816 coprocessor to beef up the performance of games. 1
CX4 The "Capcom Consumer Custom Chip", used for graphics. 1
OBC1 A fairly useless chip that does a simple mathematical operation. 1
S-DD1 A chip used to do graphics decompression. 1
S-RTC A chip used for keeping a timer in game. 1
Flash Flash memory chips that are rewritable. 3
MX15001 Possibly a copy protection chip for Nintendo Power carts. 1

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