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. GENERAL DESCRIPTION
Produced by CMOS technology, the device results in very low power consumption. Since the UM66T series includes oscillator and mode selector circuits, a compact melody module can be constructed with only a few additional components. Pin Configuration Block Diagram o/p VDD vss Pin DESCRIPTION
Pin No. Designation 1 O/P 2 vDD 3 Vss DESCRIPTION
Melody output Positive power supply Negative power supply Fl ; STACCATO_ II MELODY ROM a5a4
UMC
