Part No. Description VDD Command
Input
Built-in VCO Built-in RAM Delay Time
(ms)
Package
Voice Changer 2.4V~4.0V Manual v -- -- 16/18DIP
Voice Echo 4.5V~5.5V Manual v 20kb 30~330 16DIP/SOP
HT8972 Voice Echo 4.5V~5.5V Manual v 40kb 30~330 16DIP/SOP
 
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