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NM27C020QE-120 from NS,National Semiconductor

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NM27C020QE-120

Manufacturer: NS, FSC

2 Meg (256k x 8) UV Erasable CMOS EPROM [Life-time buy]

Partnumber Manufacturer Quantity Availability
NM27C020QE-120,NM27C020QE120 NS, FSC 4174 In Stock

Description and Introduction

2 Meg (256k x 8) UV Erasable CMOS EPROM [Life-time buy] The **NM27C020QE-120** is a high-performance **2-megabit (256K x 8) UV-erasable programmable read-only memory (EPROM)** designed for applications requiring reliable non-volatile data storage. Operating at **120ns access time**, this component is well-suited for embedded systems, industrial controls, and legacy computing applications where fast read operations are essential.  

Fabricated with advanced CMOS technology, the NM27C020QE-120 offers **low power consumption** while maintaining robust performance. It features a **single 5V power supply**, simplifying integration into existing designs. The device supports **standard EPROM programming methods**, allowing for flexible data updates when exposed to ultraviolet (UV) light for erasure.  

With a **wide operating temperature range**, this EPROM is suitable for demanding environments. Its **triple-layer polysilicon cell structure** ensures high endurance and data retention, making it a dependable choice for long-term storage solutions.  

The NM27C020QE-120 is housed in a **32-pin plastic DIP (Dual In-line Package)**, ensuring compatibility with conventional PCB layouts. Engineers and developers working with legacy or specialized systems will find this component a reliable option for firmware storage and other critical applications requiring non-volatile memory.  

For detailed specifications, refer to the manufacturer's datasheet to ensure proper implementation in your design.

Application Scenarios & Design Considerations

2 Meg (256k x 8) UV Erasable CMOS EPROM [Life-time buy]

Alternative Part Number

  • M27C2001-12F1 --: 2 Mbit UV EPROM with similar 120 ns access time and DIP-32 pinout, a direct functional replacement for the NM27C020.
  • AT27C020-12PC --: 2 Mbit OTP EPROM, 120 ns speed, DIP-32 package, pin-compatible and widely available alternative.
  • SST27SF020-70-3C-PH --: 2 Mbit flash-based EPROM replacement with faster access time and DIP-32 footprint, usable where 120 ns timing is not critical.
  • AT27C020-12PU --: 2 Mbit OTP EPROM in 32-pin PDIP with 120 ns speed, functionally compatible and widely available from a major vendor.
  • M27C2001-12C1 --: Same 2 Mbit EPROM density and 120 ns timing in a PLCC package, suitable when a PLCC footprint is acceptable instead of DIP.

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