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NM27C256Q-120 from FAI,Fairchild Semiconductor

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NM27C256Q-120

Manufacturer: FAI

256K-Bit (32K x 8) High Performance CMOS EPROM

Partnumber Manufacturer Quantity Availability
NM27C256Q-120,NM27C256Q120 FAI 9 In Stock

Description and Introduction

256K-Bit (32K x 8) High Performance CMOS EPROM The **NM27C256Q-120** is a high-performance **32K x 8-bit (256Kbit) UV-erasable programmable read-only memory (EPROM)** designed for applications requiring reliable non-volatile storage. Operating at a **120ns access time**, this component is well-suited for systems where fast data retrieval is essential.  

Featuring a **single 5V power supply**, the NM27C256Q-120 ensures compatibility with standard TTL logic levels, simplifying integration into various digital circuits. Its **28-pin DIP (Dual In-line Package)** offers ease of handling and prototyping, while its **UV-erasable** nature allows for multiple reprogramming cycles, making it ideal for development and testing phases.  

The EPROM supports a **wide operating temperature range**, ensuring stability in diverse environments. Its **low power consumption** in standby mode enhances energy efficiency, making it suitable for battery-powered or power-sensitive applications.  

Common uses include **firmware storage, microcontroller-based systems, and legacy computing devices**. The NM27C256Q-120 remains a dependable choice for engineers seeking a durable, reprogrammable memory solution with proven performance in industrial and embedded applications.  

For optimal functionality, proper **UV erasure and programming procedures** must be followed, ensuring data integrity and longevity. Its robust design and consistent operation make it a reliable component in electronic memory solutions.

Application Scenarios & Design Considerations

256K-Bit (32K x 8) High Performance CMOS EPROM

Alternative Part Number

  • M27C256B-12F1 --: Same 32K x 8 EPROM density and 120 ns access time, widely available and pin-compatible with the NM27C256Q-120.
  • AM27C256-120DC --: Equivalent 256Kbit CMOS EPROM with 120 ns speed grade, direct functional replacement in most DIP-28 sockets.
  • TMS27C256-12JL --: 256Kbit UV-erasable EPROM with 120 ns access time, suitable drop-in alternative when timing and pinout match.

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