SM1155 - Melody LSIs

Number 1 2 Name T2 T1 i/o Test pins (must be open) Melody mode control input S M 1 1 5 5 ×××1 S 3 TG ip 1 H S M 1 1 5 5 ×××2 S S M 1 1 5 5 ×××3 S L/open 4 5 6 7 8 VSS OUT OUT VDD TC o

Ground Piezoelectric speaker driver outputs.

• I I I I I I I I I I Requires few external components 1.2 to 3.6V wide operating voltage range Low power consumption 3 melody modes (bonding option) Oscillator stop function in non-play mode Power saving pull-down resistor built-in RC oscillator circuit Power-ON initialization function Wide pitch dynamic range (G3 to D7) 8-pin SOP package PINOUT (Top view) T2 T1 TG VSS 1 8 TC VDD OUT OUT 55 2 3 4 7 6 5.