Description
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.
Features
- 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.
SM1155 Datasheet
