Description
The UM66/BT66 Melody IC is a pre-programmed, low-power integrated circuit designed to produce a range of musical tones and melodies. This compact IC is widely used in greeting cards, doorbells, toys, and sound-enabled electronics. With its built-in oscillator and melody ROM, the IC simplifies the generation of high-quality sound output, making it a favorite for hobbyists and DIY electronics enthusiasts.
Operating on a low voltage (1.5V to 4.5V), the UM66/BT66 ensures compatibility with battery-operated devices. The melody output can drive a piezo buzzer or small speaker directly, or it can be amplified for louder sound. The IC is available in different melody variants, each preloaded with unique tunes.
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