SM1125 Datasheet (Nippon Precision Circuits Inc)

SM1125, Multimelody IC for Pagers

Number 1 2 3 4 5 6 7 8 Name OSC SI SC ST TEST MTO VDD VSS I/O I I I I I O * * Function Built-in RC oscillator option: External resistor and capacitor connection pins External clock input option: External reference clock input (gate circuit built-in) Playback control serial interface

SM1125 Features

* s 1125×× 6 5 s s s s s s s Maximum of 16 melody selections (with up to 512 steps) Level hold playback mode External reference clock input versions and builtin RC oscillator versions available, set by masterslice option (RC oscillator versions require an external resistor and capacitor). 12 s