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NMC27C128BQ250 from NS,National Semiconductor

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NMC27C128BQ250

Manufacturer: NS

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

Partnumber Manufacturer Quantity Availability
NMC27C128BQ250 NS 1 In Stock

Description and Introduction

250 ns, Vcc=5V+/-10%, 131,072-bit (16k x 8) high speed version UV erasable CMOS PROM # Introduction to the NMC27C128BQ250  

The **NMC27C128BQ250** is a high-performance **128Kb (16K x 8) UV-erasable programmable read-only memory (EPROM)** designed for applications requiring non-volatile data storage. This component features a fast access time of **250ns**, making it suitable for systems where quick data retrieval is essential.  

Built with **CMOS technology**, the NMC27C128BQ250 offers low power consumption while maintaining reliable performance. Its **single 5V power supply** simplifies integration into various digital systems. The device supports **standard EPROM programming voltages**, allowing for easy in-circuit or standalone programming.  

The **UV-erasable** feature enables data to be cleared via ultraviolet light exposure, permitting reprogramming for development or firmware updates. The chip is housed in a **ceramic or plastic DIP package**, ensuring durability and compatibility with standard sockets.  

Common applications include **microcontroller-based systems, industrial controls, and legacy computing devices** where firmware or fixed data storage is required. With its robust design and dependable operation, the NMC27C128BQ250 remains a practical choice for embedded systems requiring non-volatile memory solutions.  

For detailed specifications, refer to the manufacturer's datasheet for electrical characteristics, timing diagrams, and programming guidelines.

Application Scenarios & Design Considerations

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

Alternative Part Number

  • M27C128B-25F1 --: Same 128Kbit EPROM density and 250ns access time in a comparable DIP package, widely available and pin-compatible.
  • TMS27C128-25JL --: Equivalent 128Kbit UV EPROM with 250ns speed grade, suitable drop-in replacement for legacy designs.
  • AM27C128-250DC --: 128Kbit CMOS EPROM with 250ns access time, functionally equivalent and commonly used as a substitute for NS parts.

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