MB85RS256TYPNF-GS-AWE2

Memory IC Overview

The MB85RS256TYPNF-GS-AWE2 is a 256Kbit (32 K x 8) Ferroelectric Random Access Memory (FeRAM) manufactured by RAMXEED. It utilizes the Serial Peripheral Interface (SPI) and supports operating frequencies up to 40 MHz at supply voltages between 2.7 V and 3.6 V, with a maximum of 33 MHz for 1.8 V to 2.7 V operation. 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 complies with AEC-Q100 Grade 1 standards.

Memory IC Feature Summary

• High endurance capability supporting 10^13 read/write operations per byte.
• Nonvolatile data retention without requiring backup batteries.
• Supports SPI Mode 0 and Mode 3 communication protocols.
• Includes programmable block protection and write protect features.

Memory IC Applications

• Automotive applications requiring high-temperature reliability
• Industrial metering systems
• Data logging devices

Memory IC Procurement Notes

Verify the specific ordering suffix against the manufacturer's documentation to confirm the shipping form. The part number indicates tube packaging, while suffixes such as RE2 denote embossed carrier tape. Ensure compatibility with the required assembly site codes AW or BC before procurement.

Memory IC Selection Notes

Select this component when designing systems that demand extensive write cycles and robust performance in elevated temperatures. The AEC-Q100 compliance makes it suitable for automotive environments. Verify that the system voltage falls within the specified ranges to ensure optimal clock frequency and power consumption characteristics.

Memory IC Part Context

This FeRAM chip is produced by RAMXEED Limited, formerly Fujitsu Semiconductor Memory Solutions Limited. The product line maintains the original Fujitsu part numbering convention while transitioning under the new corporate identity. The technology leverages ferroelectric process and silicon gate CMOS processes for nonvolatile memory cell formation.

Memory IC Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided source material.