The UM66T19LK is a melody generator IC manufactured by UTC (Unisonic Technologies Co., Ltd.). It's designed to produce a pre-programmed melody when triggered, commonly used in toys, doorbells, and other electronic devices requiring simple audio output.

Applications

• Musical toys
• Door chimes
• Greeting cards with sound
• Alarm systems
• Novelty items with audio output

Features

• Pre-programmed melody: Contains a fixed melody stored in ROM.
• Low power consumption: Suitable for battery-powered applications.
• Simple interface: Requires minimal external components.
• Single trigger input: Activates the melody playback with a single signal.
• Direct drive output: Can directly drive a small speaker or buzzer.

Benefits

• Easy Integration: The simple interface and minimal component requirement make it easy to integrate into various electronic designs.
• Cost-Effective: Provides a low-cost solution for adding sound functionality to products.
• Low Power Consumption: Extends battery life in portable applications.
• Reliable Operation: Designed for stable and consistent performance.
• Compact Size: Small package allows for integration into space-constrained devices.

Specifications

The UM66T19LK typically operates on a voltage range of 1.5V to 3.0V DC. The output signal is designed to directly drive a small speaker or buzzer. The specific melody stored within the IC is fixed at the time of manufacture. The trigger input requires a simple logic level signal to activate the playback. The operating temperature range is generally between -10°C and +60°C. It is a small, typically epoxy molded package, designed for easy integration into electronic circuit boards. Given its function, exact electrical specifications are less critical than the melody playback characteristics and power consumption. The frequency output depends on the melody stored.