MB85RS512LYPNF-GS-BCE1

Memory IC Overview

The MB85RS512LYPNF-GS-BCE1 is a 512Kbit (64K x 8) ferroelectric random access memory (FeRAM) utilizing SPI interface. It operates within a supply voltage range of 1.7V to 1.95V and supports an operating frequency up to 50MHz. The device features high endurance of 10^13 read/write operations per byte and data retention exceeding 5.9 years at +125°C. It includes a unique 64-bit serial number, a special sector region for reflow stability, and block protection capabilities. The component is housed in an 8-pin SOP package and complies with AEC-Q100 standards.

Memory IC Feature Summary

• High endurance supporting 10^13 read/write cycles per byte
• Integrated unique 64-bit serial number and dedicated special sector region
• AEC-Q100 automotive grade qualification for high-temperature reliability
• Hardware write protect mechanisms via status register and WP pin

Memory IC Applications

• Automotive electronic control units requiring high-temperature operation
• Industrial systems needing frequent data logging and rewriting
• Embedded applications demanding non-volatile storage without backup batteries
• Devices requiring hardware-level data security and block protection

Memory IC Procurement Notes

Verify the specific ordering suffix to confirm the shipping form, as the BCE1 designation indicates tube packaging while other suffixes may denote tape and reel formats. Ensure the design accommodates the strict 1.7V to 1.95V supply voltage requirement rather than standard 3.3V or 5V rails. Confirm moisture sensitivity level handling procedures are followed during assembly to maintain JEDEC MSL-3 compliance.

Memory IC Selection Notes

Select this component when a low-voltage 1.8V system requires high-speed SPI communication up to 50MHz. It is suitable for designs prioritizing extreme write endurance over flash memory alternatives. Consider the special sector feature if storing calibration data that must survive multiple reflow soldering cycles. Verify that the microcontroller supports the required SPI modes and can handle the specific power-on/off timing sequences defined in the datasheet.

Memory IC Part Context

This part belongs to the RAMXEED MB85RS512LY FeRAM family, which maintains the original Fujitsu Semiconductor part numbering convention. RAMXEED continues to offer and support these products following its corporate name change from Fujitsu Semiconductor Memory Solutions Limited. The technology leverages ferroelectric process and silicon gate CMOS processes for nonvolatile memory cell formation.

Memory IC Replacement Considerations

MB85RS512LYPNF-GS-BCERE1: Identical electrical specifications and functionality; differs only in shipping format (tape and reel instead of tube).

Memory IC FAQ

How does the special sector region enhance reliability?

The special sector region guarantees data stability after undergoing three reflow soldering cycles based on JEDEC MSL-3 standard conditions, making it ideal for storing critical configuration data.

What is the behavior of the HOLD pin?

The HOLD pin allows interruption of serial input/output without deselecting the chip. When held low, SO becomes High-Z and SCK/SI inputs are ignored, resuming operation when returned high.

Can the serial number be rewritten?

No, the serial number region is writable only once via the WRSN command. After writing, it is permanently protected against further overwrites.