UM9392 generator equivalent, melody generator.
r 3V operatingvoltagefor speakear pplication r 256-notememory;up to 4 tunes r Dual-tonemixedoutput; 2 individuael xternael nvelope
circuits I BC oscillatowr ith oneextern.
uch as t o y s ,d o o r b e l l st,e l e p h o n e se,t c .
The devicesincludemelody and accompanimenwt, hich
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