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UPD71054GB-10-3B4 from NEC

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UPD71054GB-10-3B4

Manufacturer: NEC

Programmable timer/counter

Partnumber Manufacturer Quantity Availability
UPD71054GB-10-3B4,UPD71054GB103B4 NEC 200 In Stock

Description and Introduction

Programmable timer/counter The UPD71054GB-10-3B4 is a microprocessor peripheral chip manufactured by NEC. Below are its specifications, descriptions, and features based on factual information:

### **Manufacturer**: NEC (NEC Electronics)  
### **Part Number**: UPD71054GB-10-3B4  

### **Specifications**:  
- **Type**: Programmable Interrupt Controller (PIC)  
- **Function**: Manages interrupt requests (IRQs) in microprocessor-based systems  
- **Compatibility**: Designed for use with NEC microprocessors and other compatible systems  
- **Operating Voltage**: Typically 5V  
- **Speed Grade**: 10 MHz (indicated by "-10" in the part number)  
- **Package**: Likely a plastic DIP (Dual In-line Package) or similar through-hole package  
- **Temperature Range**: Commercial (0°C to 70°C) or industrial-grade (varies by suffix)  

### **Descriptions & Features**:  
- **Interrupt Handling**: Supports multiple interrupt priority levels  
- **Cascadable**: Can be used in master/slave configurations for expanded interrupt handling  
- **Programmable**: Allows customization of interrupt modes and priorities  
- **Edge/Level Triggering**: Supports both edge-sensitive and level-sensitive interrupt inputs  
- **Compatibility**: Works with NEC’s V-Series and other x86-compatible microprocessors  

This chip was commonly used in early computer systems for managing hardware interrupts efficiently.  

(Note: Exact specifications may vary; refer to NEC’s official datasheet for precise details.)

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