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NM27C128Q-120 from NS,National Semiconductor

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NM27C128Q-120

Manufacturer: NS, FSC, FAI

131,072-Bit (16K x 8) High Performance CMOS EPROM

Partnumber Manufacturer Quantity Availability
NM27C128Q-120,NM27C128Q120 NS, FSC, FAI 6220 In Stock

Description and Introduction

131,072-Bit (16K x 8) High Performance CMOS EPROM # Introduction to the NM27C128Q-120  

The **NM27C128Q-120** is a high-performance **128K-bit (16K x 8) UV-erasable programmable read-only memory (EPROM)** designed for applications requiring non-volatile data storage. Operating at a **120ns access time**, this component ensures reliable performance in systems where fast read operations are essential.  

Built with **CMOS technology**, the NM27C128Q-120 offers low power consumption while maintaining compatibility with industry-standard EPROM pinouts. It features a **single 5V power supply**, making it suitable for integration into various digital systems. The device supports **standard programming methods**, allowing for easy firmware updates when exposed to ultraviolet (UV) light for erasure.  

Key applications include **microcontroller-based systems, industrial controls, telecommunications equipment, and legacy computing devices**. Its durable design ensures data retention for extended periods, even in demanding environments.  

The NM27C128Q-120 is housed in a **ceramic or plastic windowed package**, facilitating UV erasure when reprogramming is necessary. With its proven reliability and compatibility, this EPROM remains a practical choice for engineers working with older or specialized embedded systems.  

For precise timing and electrical characteristics, designers should refer to the component’s datasheet to ensure proper implementation in their circuits.

Application Scenarios & Design Considerations

131,072-Bit (16K x 8) High Performance CMOS EPROM

Alternative Part Number

  • M27C128-12F1 --: 128Kbit EPROM with 120ns access time, pin-compatible DIP-28 package and same 5V programming interface.
  • TMS27C128-12JL --: 128Kbit UV EPROM, 120ns speed grade, functionally equivalent with compatible pinout and access timing.
  • MBM27C128-12 --: 128Kbit CMOS EPROM with 120ns access time, drop-in compatible replacement for the NM27C128Q-120.
  • AM27C128-120DC --: 128Kbit CMOS EPROM rated at 120 ns in a 28-pin DIP, matching the original density, speed and interface for drop-in replacement.
  • M27C128B-12F1 --: Alternative 128Kbit EPROM from a different series with 120ns timing and compatible pin configuration, suitable as a drop-in substitute.

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