MB85RS512TPNF-G-AWE2

Memory IC Overview

The MB85RS512TPNF-G-AWE2 is a 512Kbit (64 K x 8) Ferroelectric Random Access Memory (FeRAM) utilizing SPI interface. It operates within a voltage range of 1.8 V to 3.6 V and supports clock frequencies up to 25 MHz at 1.8–2.7 V, and 30 MHz at 2.7–3.6 V. The FSTRD command enables speeds up to 40 MHz at 2.7–3.6 V. Endurance reaches 10^13 read/write cycles per byte with data retention exceeding 10 years at +85°C. It functions in temperatures from -40°C to +85°C and is housed in an 8-pin plastic SOP package.

Memory IC Feature Summary

• Nonvolatile memory cells retain data without backup power, eliminating the need for battery support required by SRAM.
• High endurance capability allows up to 10^13 read/write operations per byte, significantly surpassing Flash and E2PROM limits.
• Zero wait time for write operations, avoiding the long programming delays typical of Flash memories or E2PROMs.
• Supports multiple protection mechanisms including block protect, write protect via WP pin, and status register write protection.

Memory IC Applications

• Data logging systems requiring frequent real-time writes
• Industrial control applications needing high durability
• Embedded systems with limited power budgets

Memory IC Procurement Notes

Verify the specific suffix AWE2 corresponds to the tube shipping form when ordering. Confirm that the device meets RoHS compliance requirements for your region. Ensure the design accounts for the 8-pin SOP physical dimensions and lead pitch. Check for any product change notifications affecting this specific part number before finalizing procurement plans.

Memory IC Selection Notes

Select this component for designs demanding high write endurance and fast access times without complex erase cycles. It is suitable for replacing Flash or EEPROM where reliability under heavy write loads is critical. Ensure the microcontroller supports SPI Mode 0 or Mode 3. Verify voltage levels match the 1.8 V to 3.6 V operating range.

Memory IC Part Context

This part belongs to the MB85RS512T series of FeRAM devices manufactured by RAMXEED. It maintains the original Fujitsu part numbering convention. The series offers nonvolatile storage with ferroelectric technology, providing superior speed and endurance compared to traditional flash-based alternatives.

Memory IC Replacement Considerations

MB85RS512TPNF-G-JNE1

Memory IC FAQ

What are the supported SPI modes?

The device supports SPI Mode 0 (CPOL=0, CPHA=0) and SPI Mode 3 (CPOL=1, CPHA=1).

How does the HOLD pin function?

The HOLD pin interrupts serial input/output without deselecting the chip. When LOW, SO becomes High-Z and SCK/SI inputs are ignored until the pin returns HIGH.