HT3820 - 128 Note Melody Generator
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 vario
HT3820 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 p
