Product Summary

The YMF721-S is a high quality and low cost Wavetable synthesizer LSI. The YMF721-S 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, the YMF721-S is best suited to multimedia applications, sound cards, MIDI synthesis modules and other sound applications. Power management functions (power down and suspend/resume functions) of OPL4-ML2 contribute to low power consumption of personal computers into which this product is built-in.

Parametrics

YMF721-S absolute maximum ratings: (1)Power Supply Voltage (Analog/Digital), VDD: VSS-0.5 to VSS+7.0 V; (2)Input Voltage, VIN: VSS-0.5 to VDD+0.5 V; (3)Output Voltage, VOUT: VSS-0.3 to VDD+0.3 V; (4)Input Current, IIN: -20 to 20 mA; (5)Storage Temperature, TSTG: -50 to 125℃.

Features

YMF721-S features: (1)The Wavetable synthesizer of this LSI is able to generate up to 24 types of sounds simultaneously; (2)Has an interface that makes this LSI compatible with MPU-401 UART mode; (3)Has an OPL3 (FM synthesizer) for AdLib/Sound Blaster applications; (4)Has a 1 Mbyte built-in Wavetable sample ROM; (5)Complies with GM system Level 1. (Thus, it is compatible with DOS applications that support MPU-401.); (6)MIDI signal can be transmitted either through serial input or parallel input; (7)FM synthesizer and Wavetable synthesizer of this LSI can generate their sound at the same time; (8)FM synthesizer is register-compatible with OPL3; (9)All registers are readable; (10)Power management functions included power down and suspend/resume can be supported; (11)Frequency of master clock signal is 33.8688 MHz; (12)Pin compatible with YMF704C-S (100 pin SQPF); (13)Voltage of power supply can be 5.0 V or 3.3 V; (14)Silicone gate CMOS process; (15)100-pin SQFP (YMF721-S).

Diagrams

YMF721-S block diagram

YMF704C
YMF704C

Other


Data Sheet

Negotiable 
YMF715E
YMF715E

Other


Data Sheet

Negotiable 
YMF721
YMF721

Other


Data Sheet

Negotiable 
YMF724F
YMF724F

Other


Data Sheet

Negotiable 
YMF740C
YMF740C

Other


Data Sheet

Negotiable 
YMF743
YMF743

Other


Data Sheet

Negotiable