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M27256- - 2F6 from ST,ST Microelectronics

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M27256- - 2F6

Manufacturer: ST

NMOS 256K (32K x 8) UV EPROM, 200ns

Partnumber Manufacturer Quantity Availability
M27256- - 2F6,M272562F6 ST 89 In Stock

Description and Introduction

NMOS 256K (32K x 8) UV EPROM, 200ns The part **M27256-2F6** is a **256K (32K x 8) UV Erasable PROM** manufactured by **STMicroelectronics (ST)**.  

### **Key Specifications:**  
- **Memory Size:** 256Kbit (32K x 8)  
- **Technology:** UV Erasable PROM  
- **Supply Voltage:** 5V  
- **Access Time:** 200ns (varies by speed grade)  
- **Operating Temperature Range:** Commercial (0°C to +70°C) or Industrial (-40°C to +85°C)  
- **Package:** 28-pin DIP (Dual In-line Package)  
- **Programming Voltage:** 12.5V (VPP)  

### **Features:**  
- **UV Erasable:** Can be erased via ultraviolet light exposure.  
- **Single 5V Power Supply for Read Operation**  
- **TTL-Compatible Inputs/Outputs**  
- **Low Power Consumption:**  
  - Active Current: 30mA (typical)  
  - Standby Current: 100μA (typical)  
- **Three-State Outputs** for bus compatibility  
- **JEDEC Standard Pinout**  

### **Applications:**  
- Firmware storage in embedded systems  
- Microcontroller program memory  
- Legacy computing and industrial control systems  

This part is now considered **obsolete** by STMicroelectronics and may be replaced by modern Flash memory alternatives.

Application Scenarios & Design Considerations

NMOS 256K (32K x 8) UV EPROM, 200ns

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