MB85RS2MTYPN-GS-AWEWE1

Memory IC Overview

The RAMXEED MB85RS2MTYPN-GS-AWEWE1 is a 2M-bit (256 K × 8) Ferroelectric Random Access Memory (FeRAM) utilizing SPI interface. It operates within a 1.8 V to 3.6 V supply range and supports frequencies up to 50 MHz in an ambient temperature range of -40°C to +125°C. The device offers high endurance of 10^13 read/write cycles per byte and data retention exceeding 50 years at 85°C. It includes a unique 64-bit serial number and a special sector for reflow-stable storage, packaged in an 8-pin plastic DFN (5mm × 6mm).

Memory IC Feature Summary

• Ferroelectric memory technology providing non-volatile storage without backup batteries.
• Special sector region ensuring data stability after three JEDEC MSL-3 reflow cycles.
• Integrated 64-bit unique serial number readable via dedicated commands.
• AEC-Q100 Grade 1 compliance for automotive reliability standards.

Memory IC Applications

• Automotive systems requiring high-temperature operation and AEC-Q100 compliance.
• Industrial control units needing high endurance and fast write speeds.
• Embedded systems storing configuration data or calibration parameters.

Memory IC Procurement Notes

Verify the specific ordering suffix matches the required package type. This model corresponds to the 8-pin plastic DFN 5mm x 6mm variant. Confirm that the embossed carrier tape shipping form aligns with your assembly line equipment capabilities. Ensure compatibility with the specified voltage and temperature ranges for your target application environment before finalizing procurement.

Memory IC Selection Notes

Select this component when high write endurance and fast write times are critical compared to Flash or EEPROM alternatives. It is suitable for applications demanding data retention over extended periods without power. Consider the 8-pin DFN package for space-constrained designs. Verify that the host microcontroller supports the required SPI modes and voltage levels for proper integration.

Memory IC Part Context

This part is manufactured by RAMXEED Limited, formerly Fujitsu Semiconductor Memory Solutions Limited. The product maintains the original Fujitsu part numbering system while continuing support under the new corporate identity. It belongs to the MB85RS2MTY series of 2M-bit FeRAM devices designed for robust performance in demanding environments.

Memory IC Replacement Considerations

Direct substitutes include other MB85RS2MTY variants with different packaging, such as MB85RS2MTYPNF-GS-AWE2 (SOP tube) or MB85RS2MTYPNF-GS-AWERE2 (SOP tape). Ensure pinout and electrical specifications remain identical when swapping between package types.

Memory IC FAQ

Is the data in the special sector stable after reflow?

Yes, data stored in the special sector region is guaranteed to remain stable after three reflow cycles based on JEDEC MSL-3 standard conditions.

Can the serial number be overwritten?

No, the serial number region can be written only once using the WRSN command. After writing, it becomes permanently protected against further overwrites.