MB85RC1MTPNF-G-AMERE2

Memory IC Overview

The MB85RC1MTPNF-G-AMERE2 is a 1 Mbit (131,072 words x 8 bits) Ferroelectric Random Access Memory (FeRAM) integrated circuit manufactured by RAMXEED. It utilizes an I2C two-wire serial interface and operates within a supply voltage range of 1.8 V to 3.6 V. The device supports clock frequencies up to 3.4 MHz in High Speed Mode and 1 MHz in Fast Mode Plus. It features a write endurance of at least 10^13 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 lead pitch of 1.27 mm.

Memory IC Feature Summary

• Nonvolatile memory architecture eliminates the need for backup batteries while providing high-speed write operations without polling sequences.
• I2C serial interface supports multiple slave devices on a single bus with hardware-configurable addressing via A1 and A2 pins.
• Integrated Write Protect pin allows global disabling of write operations to prevent accidental data modification.
• Low-power consumption capabilities include standby and sleep modes to minimize energy usage during idle periods.

Memory IC Applications

• Data logging systems requiring frequent write cycles and long-term data retention
• Industrial control units needing battery-free nonvolatile storage
• Smart metering applications with low power consumption requirements

Memory IC Procurement Notes

Verify the specific ordering suffix AMERE2 corresponds to the embossed carrier tape packaging format. Confirm that the required shipping quantity aligns with the manufacturer's minimum shipping specifications for this tape-and-reel variant. Ensure compatibility with the 8-pin SOP footprint during PCB layout verification.

Memory IC Selection Notes

Select this component when a nonvolatile memory solution requires high write endurance and fast access times without complex programming wait states. The I2C interface simplifies connectivity compared to parallel or SPI alternatives. Consider the operating temperature range and voltage levels to ensure alignment with system constraints.

Memory IC Part Context

This part belongs to the MB85RC1MT family of FeRAM devices from RAMXEED, formerly Fujitsu Semiconductor Memory Solutions Limited. The product maintains original Fujitsu part numbering conventions while transitioning to the new corporate identity. It serves as a drop-in replacement for legacy ferroelectric memory solutions in existing designs.

Memory IC Replacement Considerations

Compatible substitute part numbers include MB85RC1MTPNF-G-JNE1, MB85RC1MTPNF-G-JNERE1, and MB85RC1MTPNF-G-AME2. Verify package type and shipping form differences before substitution.

Memory IC FAQ

Does the MB85RC1MT require an acknowledge polling sequence after writing?

No, the device performs high-speed write operations, eliminating the need for internal write operation cycles or ACK polling typically found in Flash or EEPROM memories.

How is the device address configured for multiple devices on the I2C bus?

The device address is determined by the external logic levels applied to the A1 and A2 pins, allowing up to four devices to be connected to the same bus.

What happens if the Write Protect pin is left open?

The Write Protect pin is internally pulled down to VSS, so an open state is recognized as a logical 'L' level, keeping the memory array write-enabled.