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ROMIcon.png SegaPCM
Sega 315-5218 .png
Manufacturer(s) Sega (TTL)

Fujitsu (ASIC)

Designer(s) Sega
Release Date(s) 1985
Type(s) 8-bit PCM
Amount of channels 2 (stereo)
Amount of voices 16
VGM support since 1.51

The SegaPCM (also known as the 315-5218) is a PCM sound chip created by Sega. It was used in the "Super Scaler" games of the 80s and early 90s, including Hang-On, Space Harrier, OutRun and After Burner.

The Sega Space Harrier hardware used a discrete implementation of the SegaPCM, occupying the entire left side of the board.
Later games such as Power Drift used a single ASIC, allowing the entire sound circuitry to fit on the main PCB.

The SegaPCM as used in the Sega Space Harrier hardware was implemented almost completely with 7400 series TTL logic, for all successive platforms this was compressed into a single ASIC, which eliminated the need for a separate sound board.

The SegaPCM has 16 voices capable of 8-bit PCM sample playback. Left and right channel volumes can be set independently.

List of systems using this chip:


MAME source code