BT8031-02(Melody IC - Dingdong IC)

**Features**

127-note ROM memory

2.0V to 5.0V power supply and low power consumption

RC oscillator on chip

One shot or level hold mode (mask option)

Sound range: 2.5 octaves, 2 series

Tempo: 16 kinds (presto-largo)

Double sound sources

Digital Envelope Effect

** Functions**

Dynamic speaker can be driven with external NPN transistor

Power on reset; melody begins from the first note

Start from the head of melody

Bare chip or TO-92 are available