SM1125 Datasheet Multimelody Ic For Pagers

Manufacturer: Nippon Precision Circuits Inc

Overview: SM1125 series NIPPON PRECISION CIRCUITS INC. Multimelody IC for Pagers OVERVIEW The SM1125 series are melody ICs fabricated in NPC’s Molybdenum-gate CMOS for use in mobile telecommunications equipment. A maximum of 16 melodies can be stored in programmable ROM.

Datasheet Details

Part number	SM1125
Manufacturer	Nippon Precision Circuits Inc
File Size	96.00 KB
Description	Multimelody IC for Pagers
Datasheet	SM1125_NipponPrecisionCircuitsInc.pdf

General Description

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

Key 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 selectable clock frequencies (ﬁxed for all melodies).
External clock input versions (12 frequencies) - 32.768 kHz system: 32.768, 65.536 and 131.072 kHz - 37.5 kHz system: 37.5, 75.0 and 150.0.

SM1125 Distributor

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