MB85RS256TYPNF-G-AWE2

Memory IC Overview

The MB85RS256TYPNF-G-AWE2 is a 256 Kbit (32 K x 8) Ferroelectric Random Access Memory (FeRAM) utilizing SPI interface. It operates within a supply voltage range of 1.8 V to 3.6 V and supports clock frequencies up to 33 MHz. The device features high endurance of 10^13 read/write operations per byte and data retention exceeding 40.2 years at +85°C, 10.9 years at +105°C, and over 3.38 years at +125°C. Operating ambient temperature ranges from -40°C to +125°C. It is housed in an 8-pin plastic SOP package.

Memory IC Feature Summary

• High endurance capability supporting 10^13 read/write cycles per byte without requiring backup batteries.
• Extended data retention performance across wide operating temperatures, including over 3.38 years at +125°C.
• Supports Serial Peripheral Interface (SPI) modes 0 and 3 with maximum operating frequency of 33 MHz.
• Designed for high-temperature environments with an operational range extending to +125°C.

Memory IC Applications

• Automotive applications requiring high-temperature reliability
• Industrial systems needing nonvolatile memory with high write endurance
• Embedded systems utilizing SPI communication protocols

Memory IC Procurement Notes

Verify the specific ordering suffix corresponds to the required shipping form, as the AWE2 designation indicates tube packaging. Confirm compatibility with system voltage levels between 1.8 V and 3.6 V. Ensure the design accounts for the specified moisture sensitivity level and reflow conditions to maintain data integrity. Check for any minimum shipping quantity restrictions associated with this specific part number variant.

Memory IC Selection Notes

Select this component when high write endurance and fast write speeds are critical compared to Flash or EEPROM alternatives. It is suitable for applications demanding data retention under extreme heat conditions up to +125°C. Consider the 8-pin SOP package constraints and SPI interface requirements. Verify that the 33 MHz maximum clock speed meets the system's timing specifications.

Memory IC Part Context

This FeRAM belongs to the MB85RS256TY series, manufactured by RAMXEED Limited, formerly Fujitsu Semiconductor Memory Solutions Limited. The product maintains original Fujitsu part numbering conventions while continuing support for existing designs. It represents a nonvolatile memory solution leveraging ferroelectric process technology combined with silicon gate CMOS processes.

Memory IC Replacement Considerations

Publicly confirmed substitute part numbers include MB85RS256TYPNF-G-BCE1, MB85RS256TYPNF-G-AWERE2, and MB85RS256TYPNF-G-BCERE1. These variants share identical electrical characteristics but differ in shipping forms such as embossed carrier tape or alternative assembly sites.