HT3494 - Holtek

HT3494 Multi-Function Keyboard Instrument

The HT3494 is a CMOS VLSI designed for musical instruments, especially 49-key multi-function instruments. The HT3494 is built-in with a controller and an ETS (Electrical Tone Synthesizer). The HT3494 provides built-in melodies, rhythms, timbers and percussion/voice outputs. The status of operating system is displayed through 2 seven-segment LEDs. The HT3494 .

Features

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• Operating voltage: 3.3V~5.1V On-chip crystal oscillator: 3.58MHz 49-key instrument and compass range from C2~C6 15 outputs for key scanning 8 inputs for key scanning 32 percussion/voice space for rhythm programming 100 timbers 100 rhythms 5 percussions/voices 10 melodies 8-bit D/A audio outputs 4 percussion/voice channels output 8 melody channels output
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• Tempo adjustable Memory function with 26 notes recordable Auto-bass-chord function Transpose function 5-chord effect Vibrato function Sustain effect Fill-in effect Chord with single or mult.