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NM27C512Q200 from NSC,National Semiconductor

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NM27C512Q200

Manufacturer: NSC, NS

524,288-Bit (64K x 8) High Performance CMOS EPROM

Partnumber Manufacturer Quantity Availability
NM27C512Q200 NSC, NS 6129 In Stock

Description and Introduction

524,288-Bit (64K x 8) High Performance CMOS EPROM The **NM27C512Q200** is a high-performance **64K x 8-bit** erasable programmable read-only memory (EPROM) designed for applications requiring reliable non-volatile data storage. Operating at **200ns access time**, this component ensures efficient performance in embedded systems, industrial controls, and legacy computing applications.  

Built with **CMOS technology**, the NM27C512Q200 offers low power consumption while maintaining robust data retention. It features a **single 5V power supply**, making it compatible with standard logic levels. The device supports **byte-wide programming**, allowing flexible data updates via an external programmer.  

With a **28-pin DIP (Dual In-line Package)**, the NM27C512Q200 is designed for easy integration into existing circuit designs. Its **UV-erasable** window enables multiple reprogramming cycles, though care must be taken to shield it from prolonged light exposure in final applications.  

Key features include:  
- **64Kbit (8KB) storage capacity**  
- **200ns access time**  
- **CMOS low-power operation**  
- **Wide operating temperature range**  

While newer flash memory technologies have largely replaced EPROMs, the NM27C512Q200 remains relevant in systems requiring long-term stability, radiation resistance, or legacy compatibility. Proper handling during programming and erasure ensures optimal performance and longevity.

Application Scenarios & Design Considerations

524,288-Bit (64K x 8) High Performance CMOS EPROM

Alternative Part Number

  • M27C512-20F1 --: Pin-compatible 512Kbit EPROM with 200ns access time, widely available and a direct functional drop-in replacement.
  • AT27C512R-20PU --: 512Kbit OTP EPROM with 200ns speed in a DIP package, well-suited as a replacement for legacy NM27C512 designs.
  • TMS27C512-20JL --: 512Kbit UV EPROM with 200ns access time, electrically compatible with the original NM27C512Q200.
  • AM27C512-200DC --: Equivalent 512Kbit CMOS EPROM in the same DIP package with matching 200ns speed grade.

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