UM66T19LK-1 TO92 UTC Melody Generator Musical Alarm

The UM66T19LK-1 from UTC (Unisonic Technologies) is a low-power CMOS melody generator IC housed in a TO-92 package. It contains a factory-programmed ROM melody and automatically plays the tune when powered. The UM66T19 variant plays the classic melody "Für Elise" (For Alice), making it ideal for musical doorbells, greeting cards, toys, alarms, and DIY sound projects

Features

• Factory-programmed melody (Für Elise)
• 64-note ROM memory
• Built-in oscillator
• Low power CMOS design
• Operating voltage: 1.5V–4.5V DC
• Low current consumption

Pin Configuration

Front View (flat side facing you, pins downward):

1. VSS (GND)
2. VDD (+1.5V to +4.5V)
3. OUT (Melody Output