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M27128A-4F1 from ST,ST Microelectronics

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M27128A-4F1

Manufacturer: ST

NMOS 128K 16K x 8 UV EPROM

Partnumber Manufacturer Quantity Availability
M27128A-4F1,M27128A4F1 ST 13 In Stock

Description and Introduction

NMOS 128K 16K x 8 UV EPROM The part **M27128A-4F1** is a **128K (16K x 8) UV Erasable PROM** manufactured by **STMicroelectronics (ST)**.  

### **Specifications:**  
- **Memory Size:** 128 Kbit (16K x 8)  
- **Technology:** UV Erasable PROM  
- **Access Time:** 450 ns  
- **Supply Voltage (VCC):** 5V ±10%  
- **Operating Temperature Range:** 0°C to +70°C  
- **Package:** 28-lead Ceramic DIP (Dual In-line Package)  
- **Programming Voltage (VPP):** 12.5V  

### **Features:**  
- **UV Erasable:** Can be erased by exposure to ultraviolet light  
- **High Reliability:** Endurance of 1,000 erase/write cycles  
- **TTL-Compatible Inputs/Outputs**  
- **Single 5V Power Supply for Read Operation**  
- **Programmable Chip Enable and Output Enable Controls**  
- **Low Power Consumption:**  
  - Active Current: 30 mA (max)  
  - Standby Current: 100 μA (max)  

### **Applications:**  
- Microcontroller-based systems  
- Firmware storage  
- Industrial and automotive electronics  

This part is now considered **obsolete** and may be replaced by newer EEPROM or Flash memory alternatives.

Application Scenarios & Design Considerations

NMOS 128K 16K x 8 UV EPROM

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