MB85RS512TYPN-G-AMEWE1

Memory IC Overview

The RAMXEED MB85RS512TYPN-G-AMEWE1 is a 512Kbit (64K x 8) Ferroelectric Random Access Memory utilizing SPI interface. It operates within a voltage range of 1.8V to 3.6V and supports clock frequencies up to 50 MHz. The device features an operating temperature range from -40°C to +125°C, ensuring suitability for automotive environments. It offers high endurance of 10^13 read/write operations per byte and includes a unique 64-bit serial number alongside a special sector region.

Memory IC Feature Summary

• High endurance ferroelectric memory cells supporting extensive read/write cycles without degradation.
• Integrated special sector region designed to maintain data integrity through multiple reflow soldering processes.
• Built-in unique identification system providing a stable 64-bit serial number readable after manufacturing.
• Low power consumption capabilities with dedicated deep power down and hibernate modes.

Memory IC Applications

• Automotive electronic systems requiring high-temperature reliability
• Industrial control units needing non-volatile data retention
• Embedded systems utilizing SPI communication protocols

Memory IC Procurement Notes

Verify the specific package type, as this model designation corresponds to the DFN variant. Confirm that the required shipping form matches available options such as embossed carrier tape. Ensure compatibility with the specified operating voltage and temperature ranges for the target application environment before finalizing orders.

Memory IC Selection Notes

Select this component when high-speed SPI access and extreme temperature stability are required. The 50 MHz clock speed supports rapid data throughput compared to standard FRAM alternatives. Consider the integrated special sector if the design involves repeated reflow soldering cycles that might compromise standard memory regions.

Memory IC Part Context

This part belongs to the MB85RS512TY series of ferroelectric memories manufactured by RAMXEED. It represents a continuation of Fujitsu Semiconductor's legacy product line, maintaining original part numbering conventions. The series is engineered for robustness in harsh environments, distinguishing it from standard volatile or flash-based storage solutions.

Memory IC Replacement Considerations

MB85RS512TYPNF-G-BCE1

Memory IC FAQ

How does the special sector differ from the main memory array?

The special sector consists of 256 words specifically guaranteed to retain data after three reflow soldering cycles based on JEDEC MSL-3 standards, whereas the main array does not have this specific guarantee.

What is the behavior of the HOLD pin during operation?

When the HOLD pin is at a low level while CS is low, serial input/output is interrupted without deselecting the chip. The SO output becomes High-Z, and SCK/SI inputs are ignored until the HOLD pin returns to a high level.