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UPC29L04 from NEC

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UPC29L04

Manufacturer: NEC

THREE TERMINAL LOW DROPOUT VOLTAGE REGULATOR

Partnumber Manufacturer Quantity Availability
UPC29L04 NEC 3000 In Stock

Description and Introduction

THREE TERMINAL LOW DROPOUT VOLTAGE REGULATOR The **NEC UPC29L04** is a **UV-EPROM (Ultraviolet Erasable Programmable Read-Only Memory)** chip with the following specifications:  

### **Manufacturer:** NEC (Nippon Electric Company)  
### **Type:** UV-EPROM  
### **Memory Capacity:** 4Kb (512 x 8 bits)  
### **Access Time:** 450 ns (typical)  
### **Operating Voltage:** +5V  
### **Programming Voltage:** +25V (for programming)  
### **Package Type:** 24-pin DIP (Dual In-line Package)  
### **Erasure Method:** Ultraviolet (UV) light exposure (typically 15–20 minutes under UV lamp)  
### **Operating Temperature Range:** 0°C to +70°C  

### **Features:**  
- **Non-volatile memory** – Retains data without power  
- **UV-erasable** – Can be reprogrammed after erasure  
- **TTL-compatible inputs and outputs**  
- **Single +5V supply for read operations**  
- **High-reliability CMOS technology**  

This chip was commonly used in early computing and embedded systems for firmware storage before the widespread adoption of EEPROM and Flash memory.  

Would you like additional details on pin configurations or programming procedures?

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