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NMC27C128BQ-200 from NSC,National Semiconductor

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NMC27C128BQ-200

Manufacturer: NSC, NS

200 ns, Vcc=5V+/-10%, 131,072-bit (16k x 8) high speed version UV erasable CMOS PROM

Partnumber Manufacturer Quantity Availability
NMC27C128BQ-200,NMC27C128BQ200 NSC, NS 18 In Stock

Description and Introduction

200 ns, Vcc=5V+/-10%, 131,072-bit (16k x 8) high speed version UV erasable CMOS PROM **Introduction to the NMC27C128BQ-200**  

The **NMC27C128BQ-200** is a high-performance **128K-bit (16K x 8) UV-erasable programmable read-only memory (EPROM)** designed for applications requiring reliable, non-volatile data storage. Operating at a speed of **200ns**, this component is well-suited for embedded systems, industrial controls, and legacy computing applications where fast access times and durability are essential.  

Fabricated with advanced CMOS technology, the NMC27C128BQ-200 offers **low power consumption** while maintaining robust performance. It features a **single 5V power supply**, making it compatible with standard TTL logic levels. The device supports **parallel programming** and can be erased via **ultraviolet (UV) light exposure**, allowing for repeated reprogramming during development cycles.  

With a **wide operating temperature range** and strong noise immunity, this EPROM is ideal for demanding environments. Its **tri-state output** enables easy integration into bus-oriented systems, while the **JEDEC-approved pinout** ensures compatibility with industry-standard designs.  

The NMC27C128BQ-200 remains a dependable choice for engineers working with legacy systems or applications requiring stable, long-term data retention without the need for battery-backed solutions. Its balance of speed, power efficiency, and reprogrammability makes it a versatile component in various electronic designs.

Application Scenarios & Design Considerations

200 ns, Vcc=5V+/-10%, 131,072-bit (16k x 8) high speed version UV erasable CMOS PROM

Alternative Part Number

  • M27C128B-20F1 --: Pin-compatible 128Kbit UV EPROM with 200ns access time, direct functional replacement from a major EPROM vendor.
  • TMS27C128-20JL --: 128Kbit CMOS EPROM with 200ns speed grade, same DIP pinout and compatible programming, good second source.
  • MBM27C128-20 --: Equivalent 128Kbit EPROM with 200ns access time and matching pinout, suitable as an alternative when ST/TI parts are unavailable.
  • AM27C128-200DC --: Equivalent 128Kbit 200ns EPROM with matching pinout and programming characteristics, suitable as a drop-in substitute.

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