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NMC27C128BQ200 from NS,National Semiconductor

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NMC27C128BQ200

Manufacturer: NS, NSC

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

Partnumber Manufacturer Quantity Availability
NMC27C128BQ200 NS, NSC 15 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 NMC27C128BQ200 EPROM  

The **NMC27C128BQ200** is a high-performance **128Kb (16K x 8) erasable programmable read-only memory (EPROM)** designed for applications requiring reliable non-volatile data storage. Manufactured using advanced CMOS technology, this component offers low power consumption while maintaining fast access times, making it suitable for embedded systems, industrial controls, and legacy computing applications.  

Featuring a **200ns access time**, the NMC27C128BQ200 ensures efficient data retrieval, supporting seamless integration with microprocessors and microcontrollers. Its **single 5V power supply** simplifies system design, while the **tri-state output** allows for easy bus interfacing. The device is housed in a **ceramic or plastic DIP (Dual In-line Package)**, ensuring durability and compatibility with standard PCB layouts.  

As an EPROM, the NMC27C128BQ200 can be erased via **ultraviolet (UV) light exposure**, enabling reprogramming for prototyping or firmware updates. However, once programmed, the stored data remains intact without power, providing long-term stability.  

This component is ideal for developers working with legacy systems or applications requiring robust, reprogrammable memory solutions. Its combination of speed, reliability, and ease of use makes it a practical choice for 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 for the NMC27C128BQ200.
  • TMS27C128-20JL --: 128Kbit UV EPROM in the same DIP package with 200ns speed grade, suitable drop-in substitute.
  • HN27C128G-20 --: Equivalent 128Kbit CMOS UV EPROM with 200ns access time and compatible pinout for the original device.
  • HN27C128AG-20 --: 128Kbit UV-erasable EPROM rated at 200ns with matching DIP footprint, offering equivalent read timing and interface.

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