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NMC27C64N from NS,National Semiconductor

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NMC27C64N

Manufacturer: NS

65,536-BIT (8192 X 8) CMOS EPROM

Partnumber Manufacturer Quantity Availability
NMC27C64N NS 64 In Stock

Description and Introduction

65,536-BIT (8192 X 8) CMOS EPROM The **NMC27C64N** is a versatile and widely used **EPROM (Erasable Programmable Read-Only Memory)** chip, designed for applications requiring non-volatile data storage. With a capacity of **64 kilobits (8K x 8 bits)**, it provides reliable memory storage for embedded systems, industrial controls, and legacy computing devices.  

Fabricated using **NMOS technology**, the NMC27C64N features a **single 5V power supply**, making it compatible with standard TTL logic levels. It offers a fast access time, typically around **200ns**, ensuring efficient performance in time-sensitive applications. The chip supports **ultraviolet (UV) light erasure**, allowing for multiple reprogramming cycles after exposure to UV light for approximately **20–30 minutes**.  

The NMC27C64N is housed in a **28-pin DIP (Dual In-line Package)**, ensuring ease of integration into various circuit designs. Its pinout follows industry-standard configurations, simplifying replacements and upgrades in existing systems.  

Due to its durability and reprogrammability, the NMC27C64N remains a practical choice for firmware storage, microcontroller-based projects, and retro computing applications. While newer flash memory technologies have largely replaced EPROMs in modern designs, this component continues to be valued for its reliability in legacy and specialized systems.  

For optimal performance, proper handling—including UV erasure precautions—is recommended to maintain data integrity and longevity.

Application Scenarios & Design Considerations

65,536-BIT (8192 X 8) CMOS EPROM

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