Texas Instruments SN76477
Encyclopedia
SN76477 "complex sound generator" was a sound chip
produced by Texas Instruments
(TI). The chip came to market in 1978, and TI production of the part ceased some time ago. More recently, a 100% compatible version, identified as ICS76477, has been listed as 'in stock' by at least one US-based component stockist. The chip was typically used as a sound effects generator in arcade game
s & toys and for hobby projects. The following quotation summarises its facilities:
The use of the SN76477 in a musical context was limited by the fact that it was difficult to electronically control the pitch of the produced sound.
There were two different sizes of the SN76477 available. The SN76477N was in a standard 0.6 in (15.24 mm) width dual in-line package
(DIP). The SN76477NF was in a less common 0.4 inch (10.16 mm) width DIP.
Sound chip
A sound chip is an integrated circuit designed to produce sound . It might be doing this through digital, analog or mixed-mode electronics...
produced by Texas Instruments
Texas Instruments
Texas Instruments Inc. , widely known as TI, is an American company based in Dallas, Texas, United States, which develops and commercializes semiconductor and computer technology...
(TI). The chip came to market in 1978, and TI production of the part ceased some time ago. More recently, a 100% compatible version, identified as ICS76477, has been listed as 'in stock' by at least one US-based component stockist. The chip was typically used as a sound effects generator in arcade game
Arcade game
An arcade game is a coin-operated entertainment machine, usually installed in public businesses such as restaurants, bars, and amusement arcades. Most arcade games are video games, pinball machines, electro-mechanical games, redemption games, and merchandisers...
s & toys and for hobby projects. The following quotation summarises its facilities:
The use of the SN76477 in a musical context was limited by the fact that it was difficult to electronically control the pitch of the produced sound.
There were two different sizes of the SN76477 available. The SN76477N was in a standard 0.6 in (15.24 mm) width dual in-line package
Dual in-line package
In microelectronics, a dual in-line package is an electronic device package with a rectangular housing and two parallel rows of electrical connecting pins. The package may be through-hole mounted to a printed circuit board or inserted in a socket.A DIP is usually referred to as a DIPn, where n is...
(DIP). The SN76477NF was in a less common 0.4 inch (10.16 mm) width DIP.
Uses
Uses of the SN76477 include the following devices:- Arcade gameArcade gameAn arcade game is a coin-operated entertainment machine, usually installed in public businesses such as restaurants, bars, and amusement arcades. Most arcade games are video games, pinball machines, electro-mechanical games, redemption games, and merchandisers...
s:- Space InvadersSpace Invadersis an arcade video game designed by Tomohiro Nishikado, and released in 1978. It was originally manufactured and sold by Taito in Japan, and was later licensed for production in the United States by the Midway division of Bally. Space Invaders is one of the earliest shooting games and the aim is to...
- StratovoxStratovoxStratovox AKA Speak & Rescue is an arcade shoot 'em up developed by Sun Electronics and published by Taito in 1980. It was the first video game to feature voice synthesis.-Gameplay:...
- VanguardVanguard (arcade game)is a 1981 arcade game developed by TOSE, and published by SNK in Japan in 1981 and later during the same year in Germany by the same publisher, while it was licensed to Centuri for manufacture in North America in October 1981 and by Zaccaria in Italy during the same year, putting SNK on the map in...
- Space Invaders
- Educational toys:
- Gakken EX-SystemGakken EX-SystemThe Gakken EX-System is a series of educational electronics kits produced by Gakken in the late 1970s. The kits use denshi blocks to allow electronics experiments to be performed easily and safely...
synthesiser
- Gakken EX-System
- Electronic musical instrumentElectronic musical instrumentAn electronic musical instrument is a musical instrument that produces its sounds using electronics. Such an instrument sounds by outputting an electrical audio signal that ultimately drives a loudspeaker....
s:- AxesynthAxesynthThe AxeSynth is an electronic musical instrument invented by Tony Amendolare of Long Island, N.Y. in the winter of 2004.The first AxeSynths that were produced used the vintage Texas Instruments SN76477 Sound Generator integrated circuit...
- SN-Voice - a DIY synthesizer design by Thomas Henry
- Axesynth
- Home computerHome computerHome computers were a class of microcomputers entering the market in 1977, and becoming increasingly common during the 1980s. They were marketed to consumers as affordable and accessible computers that, for the first time, were intended for the use of a single nontechnical user...
s:- ABC 80