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NM27C040N150 from NSC,National Semiconductor

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NM27C040N150

Manufacturer: NSC

4,194,304 Bit (512K x 8) High Performance CMOS EPROM

Partnumber Manufacturer Quantity Availability
NM27C040N150 NSC 463 In Stock

Description and Introduction

4,194,304 Bit (512K x 8) High Performance CMOS EPROM The **NM27C040N150** is a high-performance **EPROM (Erasable Programmable Read-Only Memory)** integrated circuit designed for applications requiring non-volatile data storage. With a capacity of **4 megabits (512K x 8 bits)**, this component is well-suited for embedded systems, industrial controls, and legacy computing applications where reliable firmware storage is essential.  

Operating at **5V**, the NM27C040N150 features a fast access time of **150ns**, ensuring efficient data retrieval in time-sensitive systems. Its **UV-erasable** design allows for multiple reprogramming cycles, making it a flexible solution for development and prototyping. The chip employs a **CMOS technology**, balancing power efficiency with robust performance.  

Packaged in a **32-pin DIP (Dual In-line Package)**, the NM27C040N150 is compatible with standard EPROM programmers, simplifying integration into existing designs. Its wide operating temperature range enhances reliability in demanding environments.  

While newer flash memory technologies have largely replaced EPROMs in modern applications, the NM27C040N150 remains a dependable choice for systems requiring long-term data retention and reprogrammability without the need for electrical erasure. Its legacy compatibility and proven durability make it a practical option for specialized industrial and retro computing applications.

Application Scenarios & Design Considerations

4,194,304 Bit (512K x 8) High Performance CMOS EPROM

Alternative Part Number

  • M27C4001-15F1 --: 4 Mbit UV EPROM in a 32-pin DIP with 150 ns access time, functionally equivalent to the NM27C040N150 and widely available.
  • AM27C040-150DC --: 4 Mbit CMOS EPROM, 150 ns, 32-pin DIP, pin-compatible replacement for the NM27C040N150.
  • TMS27C040-15JL --: 4 Mbit EPROM with 150 ns access time in a 32-pin DIP package, suitable as a drop-in alternative.

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