MR256A08BYS35R

Memory IC Overview

The MR256A08BYS35R is a magnetoresistive random access memory (MRAM) device manufactured by Everspin Technologies. It offers a storage capacity of 256 kilobits, organized as 32K words by 8 bits. The component utilizes a parallel interface with an 8-bit data bus width and features a fast access time of 35 nanoseconds. It operates within a supply voltage range of 3 volts to 3.6 volts. The device is housed in a TSOP-II-44 surface-mount package and supports industrial operating temperatures from -40°C to +85°C.

Memory IC Feature Summary

• Provides non-volatile data retention exceeding twenty years without power while maintaining unlimited read and write endurance.
• Features SRAM-compatible timing that allows integration with existing controllers without requiring system redesign.
• Eliminates the need for battery-backed solutions by replacing flash, EEPROM, and BBSRAM components in a single device.

Memory IC Applications

• Industrial control systems requiring high reliability and frequent data logging
• Automotive electronics meeting AEC-Q100 Grade 1 standards
• Embedded systems needing instant-on functionality and low latency

Memory IC Procurement Notes

Verify the specific suffix YS35R against official datasheets to confirm the TSOP-II-44 package and industrial temperature grade. Ensure compatibility with 3.3V logic levels and parallel interface requirements. Confirm moisture sensitivity level MSL-3 handling procedures during assembly to prevent package damage.

Memory IC Selection Notes

Select this part when non-volatility and infinite endurance are critical compared to standard SRAM or Flash. It serves as a direct drop-in replacement for battery-backed RAM, removing maintenance needs. Consider the 35ns access speed and parallel interface for applications demanding deterministic performance without complex controller overhead.

Memory IC Part Context

This component belongs to the MR256A08B series of parallel I/O MRAM devices. It shares architectural similarities with other parts in the family, such as the MR256A08BCYS35R, differing primarily in package type and temperature rating specifications defined by the manufacturer's coding system.

Memory IC Replacement Considerations

Publicly confirmed substitute part numbers include MR256A08BMA35R and MR256A08BCYS35R. Verify pinout and electrical specifications before substitution to ensure functional equivalence.