"The train is running fast"
Features62-note ROM memory
1.3V to 3.3V operating voltage and low power consumption
Dynamic speaker can be driven with an external NPN transistor.
General DescriptionThe UM66T series is a CMOS LSI designed for use in
door bells, telephones and toy applications. It is an onchip
ROM programmed for musical performance. Produced
by CMOS technology, the device results in very low