Datasheet Summary
SM1126 Series
NIPPON PRECISION CIRCUITS INC.
Melody IC with Built-in SRAM
OVERVIEW
The SM1126 Series are melody ICs for use in mobile telemunications equipment. A maximum of 15 melodies can be stored in programmable ROM and one in built-in read/write SRAM.
PINOUT
(Top View)
8-pin VSOP
Features s s
OSC SIO SC ST
1 2 3 4
8 7
VSS VDD MTO TEST s s s s s s s
2.0 to 3.6 V supply voltage Maximum of 16 melody selections (15 in ROM + 1 in SRAM) 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). Selectable clock frequencies (fixed...