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UM3481A from UMC

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UM3481A

Manufacturer: UMC

Multi-Melody Generator with Sleep Function

Partnumber Manufacturer Quantity Availability
UM3481A UMC 25 In Stock

Description and Introduction

Multi-Melody Generator with Sleep Function The UM3481A is a ROM-based melody IC manufactured by UMC (United Microelectronics Corporation). Here are the key specifications, descriptions, and features from Ic-phoenix technical data files:

### **Specifications:**  
- **Technology:** CMOS  
- **Operating Voltage:** 1.5V - 3.3V  
- **Package Type:** DIP (Dual In-line Package)  
- **Pin Count:** 16 pins  
- **Oscillation:** Built-in RC oscillator  
- **Output Channels:** 1 (supports direct speaker drive)  
- **ROM Capacity:** Pre-programmed with melodies  

### **Descriptions:**  
- The UM3481A is a low-cost, low-power melody IC designed for simple audio applications.  
- It contains pre-programmed melodies stored in its ROM, eliminating the need for external memory.  
- Suitable for toys, greeting cards, alarms, and other consumer electronics requiring simple sound playback.  

### **Features:**  
- **Low Power Consumption:** Ideal for battery-operated devices.  
- **Built-in Oscillator:** No external crystal required.  
- **Simple Interface:** Minimal external components needed for operation.  
- **Direct Speaker Drive:** Can drive a small speaker or piezo buzzer directly.  
- **Pre-programmed Melodies:** Eliminates the need for user programming.  

For exact melody details or application notes, refer to the official UMC datasheet.

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