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SM1124 - Multimelody IC for Pagers

SM1124 Description

SM1124 Series NIPPON PRECISION CIRCUITS INC.Multimelody IC for Pagers OVERVIEW The SM1124 Series are melody pager multi-melody ICs fabricated in NP.
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. Function External reference clock input (Schmitt-trigger.

SM1124 Features

* s 4 5 TEST s s s s s s s s Maximum of 16 tune selections (with up to 512 steps) Level hold playback mode External reference clock input. The frequency can be selected from the following 12 settings.
* Playback frequency of each song varies (8 frequencies) - 32.768 kHz system: 32.768 an

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Multimelody for Pagers Nippon Precision Circuits Inc
Nippon Precision Circuits Inc SM1124-like datasheet