UM66T33L - Simple Melody Generator
The UM66T series is a CMOS LSI designed for use in door bells, telephones and toy applications.
It is an on-chip ROM programmed for musical performance.
Produced by CMOS technology, the device results in very low power consumption.
Since the UM66T series includes oscillator and mode selector circui
UM66T33L Features
* n 62-note ROM memory n 1.3V to 3.3V operating voltage and low power con- sumption n Dynamic speaker can be driven with an external NPN transistor. n OSC. resistor is built- in n One-shot mode or level-hold mode can be selected n Power on reset; melody begins from the first note n Direct piezo drive
