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NM27C256QE200 from NS,National Semiconductor

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NM27C256QE200

Manufacturer: NS, NSC

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

Partnumber Manufacturer Quantity Availability
NM27C256QE200 NS, NSC 6300 In Stock

Description and Introduction

256K-Bit (32K x 8) High Performance CMOS EPROM The **NM27C256QE200** is a high-performance **32K x 8-bit UV-erasable and electrically programmable read-only memory (EPROM)**. Designed for applications requiring non-volatile storage, this component offers reliable data retention and fast access times, making it suitable for embedded systems, industrial controls, and legacy computing applications.  

Featuring a **200ns access time**, the NM27C256QE200 ensures efficient operation in time-critical environments. Its **single 5V power supply** simplifies integration into existing designs, while the **low-power CMOS technology** enhances energy efficiency. The device supports **standard EPROM programming protocols**, allowing for easy in-system updates when exposed to ultraviolet light for erasure.  

With a **28-pin DIP (Dual In-line Package)**, the NM27C256QE200 is compatible with many legacy systems, ensuring broad usability. Its robust design provides resistance to environmental stressors, making it a dependable choice for industrial and commercial applications.  

Engineers and developers appreciate this component for its **balance of speed, reliability, and ease of use**, particularly in systems where firmware or fixed-data storage is essential. Whether used in retro computing or specialized hardware, the NM27C256QE200 remains a trusted solution for non-volatile memory needs.

Application Scenarios & Design Considerations

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

Alternative Part Number

  • M27C256B-20F1 --: Pin-compatible 256Kb EPROM with 200ns access time, widely available and a direct functional replacement.
  • AT27C256R-20PU --: 256Kb OTP EPROM with 200ns speed in a DIP package, drop-in compatible with the original NM27C256.
  • TMS27C256-20JL --: Equivalent 256Kb EPROM with 200ns access time, suitable as a second-source replacement.

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