1668 controller equivalent, dual tone melody xmas light controller.
* 5 SCR outputs * 2 Mode sequence trigger key * Mode 0: 7 function Vol pin control volume * Mode 1: 8 function Auto Volume control *OPT “Floation” Mode 0
“VSS” Mode 1
Pin No 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
Symbol S3 S4 S5 VOL OPT VSS TG Y X TE VDD BZ E2 E1 S1 S2
LED3 output. LED4 output. LED5 output. Volume control active in mode0. Mode option. Ground. Music switching. OSC resistor out. OSC resistor in..
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