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YMF721 - FM + Wavetable Synthesizer LSI

General Description

ISA bus interface : 19 pins Pin name pins I/O Type Size Function ADB7-0 8 I/O TTL 2mA Data bus A2-0 3 I TTL - Address bus /MPUCS 1 I TTL - MPU401 chip select /OPLCS 1 I TTL - FM/Wavetable/Command/Control chip select /IOW 1 I TTL - Write enable /IOR 1 I TTL - Read enable RS

Key Features

  • ˔ The Wavetable synthesizer of this LSI is able to generate up to 24 types of sounds simultaneously. ˔ Has an interface that makes this LSI compatible with MPU-401 UART mode. ˔ Has an OPL3 (FM synthesizer) for AdLib/SoundBlaster.

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Datasheet Details

Part number YMF721
Manufacturer YAMAHA
File Size 226.73 KB
Description FM + Wavetable Synthesizer LSI
Datasheet download datasheet YMF721 Datasheet

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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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YMF721 OPL4-ML2 FM + Wavetable Synthesizer LSI ˙ OVERVIEW YMF721 (OPL4-ML2) is a high quality and low cost Wavetable synthesizer LSI. YMF721 (OPL4-ML2) integrates an OPL3 (FM synthesizer), General MIDI processor and 1 Mbyte Wavetable sample ROM into one chip, and complies with General MIDI (GM) system level 1. Thus, it is best suited to multimedia applications, sound cards, MIDI synthesis modules and other sound applications. Since this LSI outputs stereophonic 16 bit digital signal (fs = 44.1 kHz), it can be connected directly with YMF701B, 711 or 715 (OPL3-SA, SA2 or SA3) or with YAC516(DAC16-L). Operating voltage, 3.3 V, allows this LSI to be controlled with notebook personal computers.