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UM66 Melody Generator IC – CMOS LSI Sound Chip for Doorbells, Toys, Alarms - a black three-pin electronic component with the text "UM66T-19L" and "C1401A-6" printed on its top surface.
UM66 Melody Generator IC – CMOS LSI Sound Chip for Doorbells, Toys, Alarms - a black, three-pin electronic component with the text "UM66" printed on its front face.
UM66 Melody Generator IC – CMOS LSI Sound Chip for Doorbells, Toys, Alarms - the black three-pin component and a green schematic block with labels for VDD, VSS, GND, and Out.
UM66 Melody Generator IC – CMOS LSI Sound Chip for Doorbells, Toys, Alarms - a black three-pin electronic component with the text "UM66T-19L" and "C1401A-6" printed on its top surface.
UM66 Melody Generator IC – CMOS LSI Sound Chip for Doorbells, Toys, Alarms - a black, three-pin electronic component with the text "UM66" printed on its front face.
UM66 Melody Generator IC – CMOS LSI Sound Chip for Doorbells, Toys, Alarms - the black three-pin component and a green schematic block with labels for VDD, VSS, GND, and Out.

UM66 Melody Generator IC – CMOS LSI Sound Chip for Doorbells, Toys, Alarms

Sale price Rs 60
SKU: B559,STK0
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Frequently Bought Together

Customers building this project usually buy these together.

UM66 Melody Generator IC – CMOS LSI Sound Chip for Doorbells, Toys, Alarms - a black three-pin electronic component with the text "UM66T-19L" and "C1401A-6" printed on its top surface.
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2x 18650 Cell Battery Holder - a black plastic dual-slot battery case with metal spring contacts and red and black wire leads.
This item: UM66 Melody Generator IC – CMOS LSI Sound Chip for Doorbells, Toys, Alarms -
Sale price Rs 60
MX1508 Mini Dual Channel 1.5A DC Motor Driver Module Mini L298N Replacement - a red rectangular circuit board with two capacitors, an integrated circuit, and labeled input pins.
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Sale price Rs 160
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2x 18650 Cell Battery Holder - a black plastic dual-slot battery case with metal spring contacts and red and black wire leads.
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Sale price Rs 70
Price for all:
Sale total price Rs 680

Pickup available at Digilog Electronics

Usually ready in 2 hours

UM66 Melody Generator IC – CMOS LSI Sound Chip for Doorbells, Toys, Alarms - a black three-pin electronic component with the text "UM66T-19L" and "C1401A-6" printed on its top surface.

UM66 Melody Generator IC – CMOS LSI Sound Chip for Doorbells, Toys, Alarms

  • Digilog Electronics

    Pickup available, usually ready in 2 hours

    🏢 Digilog Electronics 13th the RegalStreet,
    Back side of KFC, Near Abubakar Masjid Mall Road
    Lahore
    Pakistan

    +923124002221

    Check this on google map
UM66 Melody Generator IC – CMOS LSI Sound Chip for Doorbells, Toys, Alarms - a black three-pin electronic component with the text "UM66T-19L" and "C1401A-6" printed on its top surface.
UM66 Melody Generator IC – CMOS LSI Sound Chip for Doorbells, Toys, Alarms
Sale priceRs 60

📝 Product Description (SEO Enhanced)

The UM66 Melody Generator IC is a popular and compact CMOS LSI sound chip, pre-programmed to play a melody when powered. Ideal for use in doorbells, greeting cards, toys, and alarms, it operates on ultra-low power and delivers a crisp melody output with minimal external components.

This IC is part of the UM66TXXL series, each version offering different pre-programmed tunes. It includes an internal oscillator circuit, allowing for simplified circuit designs—just add a transistor and speaker to create a complete musical output system.

Thanks to its built-in ROM and CMOS technology, the UM66 consumes minimal power, making it perfect for battery-operated applications. It is a favorite in DIY hobby electronics, school projects, and embedded sound modules.

🔧 Key Features

  • 🎶 Built-in ROM with pre-recorded melody

  • ⚙️ On-chip Oscillator – Requires only a few external components

  • 🔋 Ultra-Low Power Consumption – Ideal for battery-powered circuits

  • 💡 Wide Voltage Range – Typically 1.5V to 4.5V

  • 🧩 CMOS Technology – Compact and efficient

  • 🔊 Perfect for Sound Applications – Toys, doorbells, musical greeting cards, alarms

📋 Technical Specifications：

Attribute Details
Product Series UM66TXXL
Technology CMOS LSI
Operating Voltage 1.5V – 4.5V
Power Consumption Very Low
Output Type Melody Tone (via base drive output)
Oscillator Internal
IC Package TO-92 (commonly) or DIP
Applications Toys, Doorbells, Alarms, Greeting Cards


🎯 Applications

  • Musical doorbells and buzzers

  • Talking toys and electronic instruments

  • Greeting cards and novelty items

  • School science fair projects

  • Simple embedded audio alerts

📦 Package Includes

  • 1 × UM66 Melody IC (variant may vary)

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