MB85RS256TYPNF-GS-AWERE2

Memory IC Overview

The MB85RS256TYPNF-GS-AWERE2 is a 256K-bit (32 K x 8) Ferroelectric Random Access Memory (FeRAM) integrated circuit manufactured by RAMXEED. It utilizes an SPI serial interface compliant with modes 0 and 3, supporting operating frequencies up to 40 MHz at supply voltages between 2.7 V and 3.6 V. The device operates within an ambient temperature range of -40°C to +125°C and is housed in an 8-pin plastic SOP package. It features high endurance of 10^13 read/write cycles per byte and data retention exceeding 3.38 years at +125°C.

Memory IC Feature Summary

• Nonvolatile memory architecture utilizing ferroelectric process technology for battery-free data retention.
• High endurance capability supporting 10^13 read/write operations per byte.
• Integrated status register with nonvolatile block protection and write protect bits.
• Supports low power consumption modes including standby and sleep states.

Memory IC Applications

• Automotive electronic systems requiring AEC-Q100 Grade 1 compliance.
• Industrial control applications operating in high-temperature environments.
• Data logging systems requiring frequent write cycles without wear leveling.

Memory IC Procurement Notes

Verify the specific ordering suffix against the manufacturer's current documentation to confirm assembly site and shipping form. Ensure compatibility with system voltage levels and SPI clock speeds before integration. Confirm moisture sensitivity level handling procedures during storage and reflow soldering processes.

Memory IC Selection Notes

Select this component when high-speed serial access and extreme durability are required. It serves as a direct replacement for SRAM or Flash in applications demanding rapid write times and infinite cycle endurance. Verify that the system supports the required SPI modes and voltage ranges for optimal performance.

Memory IC Part Context

This part belongs to the MB85RS256TY series of FeRAM devices produced by RAMXEED Limited, formerly Fujitsu Semiconductor Memory Solutions Limited. The series maintains original Fujitsu part numbering while offering updated manufacturing support. The device is designed specifically for robust industrial and automotive environments.

Memory IC Replacement Considerations

Public confirmed substitute part numbers: MB85RS256TYPNF-GS-BCERE1

Memory IC FAQ

What is the maximum operating frequency of the SPI interface?

The maximum operating frequency is 40 MHz when the supply voltage is between 2.7 V and 3.6 V.

How does the device handle data retention at high temperatures?

Data retention is guaranteed for more than 3.38 years at an ambient temperature of +125°C.

Is the device compliant with automotive standards?

Yes, the MB85RS256TY series is AEC-Q100 Grade 1 compliant.