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NM27C512Q-70 from NS,National Semiconductor

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NM27C512Q-70

Manufacturer: NS, NSC

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

Partnumber Manufacturer Quantity Availability
NM27C512Q-70,NM27C512Q70 NS, NSC 6103 In Stock

Description and Introduction

524,288-Bit (64K x 8) High Performance CMOS EPROM The **NM27C512Q-70** is a high-performance **EPROM (Erasable Programmable Read-Only Memory)** integrated circuit designed for applications requiring reliable, non-volatile data storage. With a capacity of **512 kilobits (64K x 8 bits)**, this component offers a robust solution for firmware storage, embedded systems, and legacy computing applications.  

Operating at a **70-nanosecond access time**, the NM27C512Q-70 ensures efficient data retrieval, making it suitable for systems where speed and responsiveness are critical. It features a **single 5V power supply**, simplifying integration into various electronic designs. The device supports **standard EPROM programming methods**, allowing for easy updates via UV erasure and reprogramming.  

Encased in a **PDIP (Plastic Dual In-Line Package)**, the NM27C512Q-70 is designed for durability and ease of handling. Its compatibility with industry-standard pinouts ensures seamless replacement in existing circuits.  

Key applications include **microcontroller-based systems, industrial controls, and retro computing projects** where long-term data retention is essential. While newer flash memory technologies have largely replaced EPROMs in modern designs, the NM27C512Q-70 remains a dependable choice for developers working with legacy hardware or specialized applications requiring UV-erase functionality.  

With its proven reliability and straightforward interface, this EPROM continues to serve as a trusted component in electronics engineering.

Application Scenarios & Design Considerations

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

Alternative Part Number

  • M27C512-70F1 --: Same 512Kbit EPROM density and 70ns access time in a comparable DIP package, widely available and pin-compatible.
  • AT27C512R-70PU --: 512Kbit OTP EPROM with 70ns speed and DIP-28 pinout, a common drop-in replacement for NM27C512 devices.
  • TMS27C512-70JL --: Equivalent 512Kbit EPROM with 70ns access time and standard JEDEC pinout, suitable as a functional substitute.
  • AM27C512-70DC --: Equivalent 512Kbit CMOS EPROM with 70ns speed and matching pinout, a common second-source replacement.

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