MB85RC256VPF-G-BCE1

Memory IC Overview

The MB85RC256VPF-G-BCE1 is a 256 Kbit (32 K x 8) Ferroelectric Random Access Memory (FeRAM) IC manufactured by RAMXEED. It utilizes an I2C serial interface with a maximum operating frequency of 1 MHz. The device operates within a supply voltage range of 2.7 V to 5.5 V and supports an ambient temperature range from -40°C to +85°C. It is housed in an 8-pin plastic SOP package with a 208mil width.

Memory IC Feature Summary

• Nonvolatile memory cells retain data without backup batteries, offering read/write endurance of at least 10^12 cycles per byte.
• I2C two-wire serial interface allows connection of up to eight devices on the same bus using hardware address pins A0-A2.
• Hardware write protection via the WP pin disables writing operations when set to high level while maintaining read access.
• No polling sequence is required after writing; data is written immediately upon acknowledge response.

Memory IC Applications

• Data logging systems requiring frequent writes
• Industrial control equipment
• Automotive information recorders
• Smart metering devices

Memory IC Procurement Notes

Verify the specific package variant, as the MB85RC256V family includes both 150mil and 208mil SOP options. Confirm that the ordering suffix corresponds to the tube packaging format required for your assembly process. Ensure compatibility with the I2C bus pull-up resistor requirements specified in the electrical characteristics section.

Memory IC Selection Notes

Select this component for applications needing high endurance and fast write speeds without programming wait times. It is suitable for environments where battery-backed SRAM is impractical. Consider the 208mil package dimensions for PCB layout constraints. Verify that the system power supply remains within the 2.7 V to 5.5 V operational range.

Memory IC Part Context

This part belongs to the MB85RC256V series of FeRAM products from RAMXEED, formerly Fujitsu Semiconductor. The series provides nonvolatile storage solutions combining the speed of SRAM with the retention of EEPROM. RAMXEED continues to support these parts under the new corporate identity while maintaining original part numbering conventions.

Memory IC Replacement Considerations

MB85RC256VPF-G-BCERE1: Same electrical specifications but supplied in embossed carrier tape instead of tube packaging.