SM1124 pagers equivalent, multimelody ic for pagers.
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TEST
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Maximum of 16 tune selections (with up to 512 steps) Level hold playback mode External reference clock input. The frequency can be select.
Number 1 2 3 4 5 6 7 8 Name CLK SI SC ST TEST MTO VDD VSS I/O I I I I I O
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– Function External reference clock input (Schmitt-trigger circuit and gate circuit built-in) Playback control serial interface data input pin.
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