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NM27C256Q100 from NS,National Semiconductor

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NM27C256Q100

Manufacturer: NS

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

Partnumber Manufacturer Quantity Availability
NM27C256Q100 NS 7 In Stock

Description and Introduction

256K-Bit (32K x 8) High Performance CMOS EPROM The **NM27C256Q100** 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 **100ns access time**, the NM27C256Q100 ensures efficient data retrieval, while its **single 5V power supply** simplifies integration into various circuit designs. The device supports **standard EPROM programming methods**, allowing for easy firmware updates via ultraviolet (UV) light erasure.  

With a **28-pin DIP (Dual In-line Package)**, the NM27C256Q100 is compatible with many existing systems, providing a cost-effective solution for memory expansion or firmware storage. Its robust design ensures durability in demanding environments, maintaining stable performance across industrial temperature ranges.  

Key features include **low power consumption**, **TTL-compatible inputs and outputs**, and a **three-state output bus** for simplified interfacing with microprocessors. Whether used in legacy hardware or specialized industrial applications, the NM27C256Q100 remains a dependable choice for non-volatile memory needs.  

For precise specifications, always refer to the manufacturer's datasheet to ensure compatibility with your system requirements.

Application Scenarios & Design Considerations

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

Alternative Part Number

  • M27C256B-10F1 --: Same 256Kbit EPROM density and 100ns access time, pin-compatible DIP-28 package, widely available from ST.
  • AT27C256R-10PU --: 256Kbit OTP EPROM with 100ns speed and DIP-28 pinout, direct functional replacement from Microchip/Atmel.
  • TMS27C256-10JL --: Equivalent 256Kbit UV EPROM with 100ns access time in DIP-28, suitable drop-in alternative.

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