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HT3820 - 128 Note Melody Generator

General Description

The HT3820 series are single-chip 128 note melody generators implemented in CMOS technology.

It can play a melody of 128 notes by trigger input or automatically when power is on.

Customers’ melody sources are programmed by changing a masking layer during device fabrication.

Key Features

  • Working voltage: 2.4V~5.0V 7 tempo options 2 "CHA" envelopes Normal or octave higher option 4 operation modes.
  • Extremely few external components Drive an 8Ω speaker through an NPN transistor 3-pin TO-92 or 16 DIP/SOP package General.

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HT3820 128 Note Melody Generator Features • • • • • Working voltage: 2.4V~5.0V 7 tempo options 2 "CHA" envelopes Normal or octave higher option 4 operation modes • • • Extremely few external components Drive an 8Ω speaker through an NPN transistor 3-pin TO-92 or 16 DIP/SOP package General Description The HT3820 series are single-chip 128 note melody generators implemented in CMOS technology. It can play a melody of 128 notes by trigger input or automatically when power is on. Customers’ melody sources are programmed by changing a masking layer during device fabrication. The HT3820 can play various musical effects: Chord, Broken Chord, "CHA" sound accompaniment.