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            UM66TXXL UM66T05L UM66T08L UM66T11L UM66T19L UM66T32L Datasheet
            MELODY INTEGRATED CIRCUIT

             
             
            DESCRIPTION
             
            The UTC UM66TXXL series are CMOS LSI designed for using
            in door bell, telephone and toy application. It is an on-chip ROM
            programmed for musical performance. Produced by CMOS
            technology, the device results in very low power consumption.
            Since the UTC UM66TXXL series include oscillation circuits a
            compact melody module can be constructed with only a few additional components.
             


             
            FEATURES
             
            *64-Note Rom memory
            *1.5V ~ 4.5V power supply and low power consumption
            *Dynamic speaker can be driven with external NPN transistor
            *OSC resistor hold mode
            *Power on reset: melody begins from the first note
            *Built in level hold mode
             

             
             
            TYPICAL APPLICATION CIRCUIT


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