MB85RS1MTPNF-G-JNE1

Memory IC Overview

The MB85RS1MTPNF-G-JNE1 is a 1 Mbit (128 K × 8) Ferroelectric Random Access Memory (FeRAM) utilizing SPI. It operates on a 1.8 V to 3.6 V supply within -40°C to +85°C. Clock frequencies reach 25 MHz at 1.8–2.7 V and 30 MHz at 2.7–3.6 V, with FSTRD supporting up to 40 MHz at 2.7–3.6 V. Endurance is rated at 10^13 read/write cycles per byte. Data retention spans 10 years at +85°C, 95 years at +55°C, and over 200 years at +35°C. Power consumption includes 9.5 mA max operating current, 120 µA standby, and 10 µA sleep.

Memory IC Feature Summary

• Non-volatile ferroelectric memory architecture eliminating the need for backup batteries.
• Serial Peripheral Interface (SPI) compatible with Mode 0 and Mode 3 protocols.
• High endurance capability of 10^13 write cycles per byte without wait times.
• Integrated block protection and write protect mechanisms via status register control.

Memory IC Applications

• Data logging systems requiring high write endurance.
• Industrial equipment monitoring and control.
• Smart metering applications.
• Automotive electronic modules.

Memory IC Procurement Notes

Verify the specific ordering suffix to confirm the package type and shipping form. The JNE1 suffix indicates an 8-pin plastic SOP tube. Confirm moisture sensitivity level requirements and reflow soldering conditions prior to assembly. Ensure voltage levels match the specified 1.8 V to 3.6 V range for proper operation.

Memory IC Selection Notes

Select this component when high non-volatile write endurance is critical compared to Flash or EEPROM alternatives. The SPI interface allows for simple microcontroller integration. Consider the operating frequency limits based on the supply voltage: 25 MHz for lower voltages and up to 40 MHz for fast read operations at higher voltages.

Memory IC Part Context

This device belongs to the MB85RS1MT family of FeRAM chips manufactured by RAMXEED Limited. It maintains compatibility with previous Fujitsu Semiconductor part numbers. The technology utilizes ferroelectric process and silicon gate CMOS processes to form nonvolatile memory cells.

Memory IC Replacement Considerations

MB85RS1MTPNF-G-AWE2

Memory IC FAQ

What are the supported SPI modes?

The MB85RS1MTPNF-G-JNE1 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 held low, SO becomes High-Z and SCK/SI inputs are ignored until the pin returns high.