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UPD7759C from NEC

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UPD7759C

Manufacturer: NEC

ADPCM SPEECH SYNTHESIZER LSIs

Partnumber Manufacturer Quantity Availability
UPD7759C NEC 179 In Stock

Description and Introduction

ADPCM SPEECH SYNTHESIZER LSIs The UPD7759C is a speech synthesis LSI (Large-Scale Integration) chip manufactured by NEC.  

### **Specifications:**  
- **Manufacturer:** NEC (Nippon Electric Company)  
- **Type:** ADPCM (Adaptive Differential Pulse Code Modulation) Speech Synthesis LSI  
- **Package:** 24-pin DIP (Dual In-line Package)  
- **Operating Voltage:** 5V DC  
- **Sampling Rate:** Typically supports 6–12 kHz ADPCM playback  
- **Memory Interface:** External ROM for speech data storage  
- **Output:** Analog audio output (requires external filtering and amplification)  
- **Control Interface:** Serial or parallel control for playback commands  

### **Descriptions and Features:**  
- Designed for speech synthesis in electronic devices such as toys, appliances, and industrial systems.  
- Uses ADPCM compression for efficient speech data storage.  
- Supports external ROM for storing speech data, allowing customization.  
- Includes built-in DAC (Digital-to-Analog Converter) for audio output.  
- Low power consumption suitable for battery-operated devices.  
- Compatible with NEC's speech development tools for easy integration.  

The UPD7759C was commonly used in vintage electronic products requiring speech output.

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