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FM Operator Type-N(OPN)
The Yamaha YM2203 is a 8-bit microprocessor with a 40-pin DIP package. It was released in 1983 and was used in many arcade and home video game systems. The YM2203 is a single-chip FM synthesis sound generator with three independent FM channels. It also includes a noise generator, a programmable timer, and a serial I/O port. The YM2203 is capable of producing a wide range of sounds, from simple square waves to complex FM synthesis sounds. The YM2203 is used in many classic arcade and home video game systems, such as the Sega Master System, the Sega Mega Drive, the NEC PC Engine, and the Nintendo Entertainment System. It is also used in some synthesizers and drum machines. (For reference only)