MB85RC256VPNF-G-AMERE2

Memory IC Overview

The MB85RC256VPNF-G-AMERE2 is a 256 Kbit (32,768 words x 8 bits) Ferroelectric Random Access Memory (FeRAM) integrated circuit manufactured by RAMXEED. It utilizes a two-wire serial I2C interface for communication and operates within an ambient temperature range of -40°C to +85°C. The device supports a supply voltage between 2.7 V and 5.5 V with a maximum operating frequency of 1 MHz. It features a write endurance of at least 10^12 cycles per byte and data retention exceeding 10 years at +85°C. The component is housed in an 8-pin plastic SOP package with a 150mil width.

Memory IC Feature Summary

• Nonvolatile memory retains data without backup power
• High-speed write operations eliminate polling wait times
• Hardware write protection via dedicated pin
• Supports multiple devices on a single bus

Memory IC Applications

• Industrial control systems requiring high endurance
• Automotive electronics meeting AEC-Q100 standards
• Smart metering and utility infrastructure
• Medical equipment data logging
• Consumer appliances with frequent write cycles

Memory IC Procurement Notes

Verify the specific ordering suffix AMERE2 corresponds to the Embossed Carrier Tape shipping form with a quantity of 1500 units per reel. Confirm that the 150mil package dimension matches your PCB footprint requirements. Ensure the design accounts for the internal pull-down on the Write Protect pin to maintain default write-enabled status if left unconnected.

Memory IC Selection Notes

Select this component when a nonvolatile memory solution requires significantly higher write endurance than Flash or EEPROM technologies. It is suitable for applications needing fast write speeds without programming delays. Choose this part if the system architecture utilizes an I2C bus and requires operation across a wide industrial temperature range with flexible voltage support.

Memory IC Part Context

This component belongs to the MB85RC256V family of FeRAM devices produced by RAMXEED Limited, formerly Fujitsu Semiconductor Memory Solutions Limited. The manufacturer continues to offer these products while maintaining original part numbering conventions. This specific variant represents the standard voltage version packaged in a compact surface-mount format.

Memory IC Replacement Considerations

MB85RC256VPNF-G-JNE1

Memory IC FAQ

Does the MB85RC256VPNF-G-AMERE2 require an acknowledge polling sequence after writing?

No, the device performs high-speed write operations, so no waiting time for ACK polling occurs after issuing the Stop Condition.

What is the default state of the Write Protect (WP) pin if left open?

The WP pin is internally pulled down to VSS, which is recognized as the 'L' level, meaning the device is in the write-enabled state.

How many devices can be connected to the same I2C bus using this component?

Up to eight devices can be connected to the same data bus, distinguished by unique combinations of the A0, A1, and A2 address pins.