MB85RS4MLYPF-G-BCERE1

Memory IC Overview

The MB85RS4MLYPF-G-BCERE1 is a 4Mbit (512 K x 8) ferroelectric random access memory (FeRAM) utilizing SPI interface. It operates on a supply voltage of 1.7 V to 1.95 V with a maximum clock frequency of 50 MHz. The device supports SPI modes 0 and 3, features high endurance of 10^13 read/write operations per byte, and includes a unique 64-bit serial number. It is housed in an 8-pin SOP package and functions within an ambient temperature range of -40°C to +125°C.

Memory IC Feature Summary

• Nonvolatile data retention without backup battery support
• High endurance capability for frequent write cycles
• Integrated unique identification and serial number storage
• Special sector region resistant to reflow soldering conditions

Memory IC Applications

• High-temperature environment applications
• Systems requiring frequent data logging or parameter updates
• Embedded solutions needing fast write speeds without erase cycles

Memory IC Procurement Notes

Verify the specific ordering suffix matches the required shipping form, as the BCERE1 designation indicates embossed carrier tape packaging. Confirm that the application circuit strictly adheres to the narrow 1.7 V to 1.95 V operating voltage range to ensure reliable operation. Check moisture sensitivity level requirements during assembly.

Memory IC Selection Notes

Select this component when high-speed SPI communication and extreme write endurance are required. Ensure the system power supply can maintain stability within the 1.7 V to 1.95 V window. Consider the 8-pin SOP package constraints for board layout. Verify compatibility with SPI mode 0 or 3 timing requirements.

Memory IC Part Context

This part belongs to the MB85RS4MLY series of FeRAM devices manufactured by RAMXEED. It represents a continuation of Fujitsu Semiconductor Memory Solutions Limited product lines. The technology leverages ferroelectric process and silicon gate CMOS processes for nonvolatile memory cells.

Memory IC Replacement Considerations

Direct replacements must match the 4Mbit capacity, SPI interface, and 1.7V-1.95V voltage range. Verify pinout compatibility for the 8-pin SOP package. Note that other series members may have different voltage tolerances or package options.