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MR27V401E from OKI

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MR27V401E

Manufacturer: OKI

524,288-Word × 8-Bit One Time PROM

Partnumber Manufacturer Quantity Availability
MR27V401E OKI 44 In Stock

Description and Introduction

524,288-Word × 8-Bit One Time PROM **Introduction to the MR27V401E Electronic Component**  

The MR27V401E is a high-performance electronic component designed for applications requiring reliable non-volatile memory storage. As a member of the MRAM (Magnetoresistive Random-Access Memory) family, it combines the speed of SRAM with the non-volatility of flash memory, making it an ideal choice for systems that demand fast read/write operations and data retention without power.  

With a capacity of 4 Mbit (512 KB), the MR27V401E offers low power consumption, high endurance, and rapid access times, making it suitable for industrial, automotive, and embedded systems. Unlike traditional flash memory, MRAM technology eliminates the need for complex write cycles, reducing wear and extending the component’s lifespan.  

Key features of the MR27V401E include a wide operating voltage range, robust temperature tolerance, and compatibility with standard SPI interfaces, ensuring seamless integration into existing designs. Its resistance to radiation and magnetic interference further enhances its reliability in harsh environments.  

Engineers and developers will appreciate its ability to retain data indefinitely without requiring a power source, making it a dependable solution for critical applications such as data logging, firmware storage, and real-time processing. The MR27V401E represents a forward-looking memory solution that bridges the gap between volatile and non-volatile storage technologies.  

In summary, the MR27V401E is a versatile and durable memory component that delivers performance, longevity, and stability for advanced electronic systems.

Application Scenarios & Design Considerations

524,288-Word × 8-Bit One Time PROM

Alternative Part Number

  • AT27C040-70PU --: 4 Mbit (512K x 8) OTP EPROM in DIP-32, functionally equivalent to the MR27V401E with similar access time and pinout.
  • M27C4001-70F1 --: 4 Mbit UV EPROM organized as 512K x 8, widely available replacement for OKI 4 Mbit EPROMs with comparable speed grade.
  • SST39SF040-70-4C-PHE --: 4 Mbit flash memory in DIP-32 that can replace the OTP EPROM in many designs, offering in-system reprogrammability and similar timing.
  • AT27C040 --: 4-Mbit (512K x 8) OTP EPROM in a similar DIP/PLCC package, widely available and functionally compatible with the MR27V401E mask ROM.
  • M27C4001 --: 4-Mbit UV EPROM with the same 512K x 8 organization and pinout, a common drop-in replacement for 4-Mbit mask ROMs.
  • SST39SF040 --: 4-Mbit flash memory with 512K x 8 organization and compatible pinout, offering in-system reprogrammability as a modern substitute.

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