Texas Instruments SN76477

The Texas Instruments SN76477 Complex Sound Generator was originally designed to produce sound effects for toys, pinball machines, home and arcade video games, etc.

The Texas Instruments SN76477

Commercial use

The SN76477 is included in the following devices:

Arcade games

Space Invaders

Stratovox

Vanguard

Sheriff/Bandido

Educational

Gakken EX-System

Electronic musical instruments

Axesynth

SN-Voice – a DIY synthesizer design by Thomas Henry

Blacet Research Dark Star Chaos module

Home computers

ABC 80

Further reading

• Chapter 9, The Supercontroller, Build a Better Music Synthesizer by Thomas Henry, Tab Books, 1987, ISBN 0-8306-0255-0

External links

• Wikipedia: Texas Instruments SN76477
• ICS76477a Sound Chip, BGMicro Electronics compilation
• Panels, PCBs, and bundles from synthCube for The SN-Voice Project.
• Dark Star Chaos Noise Modulated Sound Generator 2000 (lower down down the page)
• Thomas Henry's SN76477 Super Controller Module, electro-music forum, Apr 2007
• VC Noise Source and LFO by Thomas Henry, Jan 2017
• Reverse engineering the 76477 "Space Invaders" sound effect chip from die photos by Ken Shirriff
• Inside the 76477 Space Invaders sound effect chip: digital logic implemented with I2L by Ken Shirriff
• The SN-Exerciser, electro-music.com forum, Jan 2015
• Experimenting with a sound-effects generator by Frank I. Gilpin, Electronic experimenter's handbook, 1983
• Electronic Music Circuits: The Reprints, Vol 1 contains:
  • Tricks with the SN76477, part 1, Polyphony, May/June 1981, pp. 10–12.
  • Tricks with the SN76477, part 2, Polyphony, July/August 1981, pp. 16,17.
  • The Super Contro11er, Polyphony, September/October 1981, pp. 28–32.
  • The Snare + Drum Voice, Polyphony, September/October 1982, pp. 28–3I.

Eurorack build

• SN-Voice euro build thread, Mod Wiggler forum, Dec. 2012