IC Phoenix logo

Home ›  M  › M169 > MX27C256QC-15

MX27C256QC-15 from

Fast Delivery, Competitive Price @IC-phoenix

If you need more electronic components or better pricing, we welcome any inquiry.

MX27C256QC-15

256K-BIT [32K x 8] CMOS EPROM

Partnumber Manufacturer Quantity Availability
MX27C256QC-15,MX27C256QC15 30 In Stock

Description and Introduction

256K-BIT [32K x 8] CMOS EPROM # Introduction to the MX27C256QC-15 EPROM  

The **MX27C256QC-15** is a high-performance **256K-bit (32K x 8) UV-erasable programmable read-only memory (EPROM)** designed for applications requiring non-volatile data storage. With a fast **150ns access time**, this component is well-suited for embedded systems, industrial controls, and legacy computing applications where reliable firmware storage is essential.  

Featuring a **single 5V power supply**, the MX27C256QC-15 operates with low power consumption, making it efficient for various electronic designs. Its **JEDEC-standard pinout** ensures compatibility with industry-standard EPROMs, simplifying integration into existing systems. The device supports **parallel programming**, allowing for straightforward firmware updates when paired with an appropriate programmer.  

As a UV-erasable EPROM, the MX27C256QC-15 can be erased by exposure to ultraviolet light, enabling multiple reprogramming cycles. However, care must be taken to avoid unintended exposure to UV sources, which could corrupt stored data.  

The **MX27C256QC-15** is housed in a **32-pin ceramic or plastic DIP package**, providing durability and ease of handling. Its robust design and dependable performance make it a preferred choice for applications requiring long-term data retention without frequent reprogramming.  

For engineers working with legacy or specialized systems, this EPROM remains a reliable solution for firmware storage and retrieval.

Application Scenarios & Design Considerations

256K-BIT [32K x 8] CMOS EPROM

Alternative Part Number

  • AT27C256R-15PC --: 256Kb (32K x 8) OTP EPROM with 150 ns access time in a 28-pin DIP, functionally equivalent to the MX27C256 and widely available from a major vendor.
  • M27C256B-15F1 --: 256Kb UV-erasable EPROM with 150 ns access time and the same 28-pin pinout, a well-established drop-in replacement for the MX27C256.
  • W27C257-15 --: 256Kb CMOS EPROM with 150 ns speed and compatible 28-pin DIP pinout, offering a similar architecture and timing to the original device.

Request Quotation

For immediate assistance, call us at +86 533 2716050 or email [email protected]

Part Number Quantity Target Price($USD) Email Contact Person
We offer highly competitive channel pricing. Get in touch for details.

Specializes in hard-to-find components chips