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S-SMP (Audio Processing Unit) · Mapping Our Devices

S-SMP (Audio Processing Unit)

Title

S-SMP (Audio Processing Unit)

Creator

Nintendo

Publisher

Sony

Date

1989 (Copyright)
Probably manufactured in 1992

Rights

Copyrighted to Sony

Format

Microchip

Coverage

2mm x 1.2mm

Curator

Zachary Caldwell

Part Number

26M9Y

Function

"The main SNES CPU uses it to transfer code blocks and sound samples to the RAM [...] the S-SMP can be considered as a coprocessor dedicated for sound on the SNES."

Designer

Sony

Manufacturer

Sony

Country of Origin

Japan

City of Origin

Inazawa

Assembly Location

Sony Inazawa Plant (Probably)

Raw Materials

Silicon and aluminum

Evidence

https://en.wikipedia.org/wiki/Nintendo_S-SMP#DSP All of the functional and descriptive information is listed on this Wikipedia page. As for the assembly location, I did some digging on Sony's websites and found that the Inazawa plant is where most of their chips are produced. I could not find any earlier plants, so I am making the inference that this was also the plant in use during the late 1980's and early 1990's. As for the manufacturing date, I assume it's 1992 because that is when most of the date codes on other parts are listed.

Collection:

Super Nintendo

Tags

No tags recorded for this item.

Citation

Nintendo, “S-SMP (Audio Processing Unit),” Mapping Our Devices, accessed May 2, 2026, https://maps.dgst101.net/items/show/278.

Output Formats

File

20180328_122143.jpg
20180328_122143.jpg