MB85RC04VPNF-G-AME1

Memory IC Overview

The MB85RC04VPNF-G-AME1 is a 4 Kbit (512 words x 8 bits) Ferroelectric Random Access Memory (FeRAM) integrated circuit manufactured by RAMXEED. It utilizes a two-wire I2C serial interface for communication, supporting standard mode up to 100 kHz, fast mode up to 400 kHz, and fast mode plus up to 1 MHz. The device operates within a supply voltage range of 3.0 V to 5.5 V and functions across an ambient temperature range of -40°C to +85°C. It features high 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

• Non-volatile memory architecture eliminates the need for backup batteries while retaining data without power.
• High-speed write operations do not require polling sequences or programming wait times after issuing stop conditions.
• Hardware write protection allows disabling write operations via the WP pin while maintaining read access.
• Robust endurance supports over 10^12 write cycles, significantly outperforming traditional EEPROM technologies.

Memory IC Applications

• Industrial systems requiring frequent data logging and high rewrite durability
• Embedded controllers needing battery-free non-volatile storage
• I2C bus networks utilizing multiple slave devices with addressable configurations

Memory IC Procurement Notes

Verify the specific ordering suffix against official documentation to confirm packaging type and shipping form. The AME1 designation typically corresponds to tray packaging; however, cross-reference with the manufacturer's current datasheet to ensure alignment with required reel or tube specifications. Confirm moisture sensitivity level requirements and reflow soldering profiles prior to assembly to maintain data integrity.

Memory IC Selection Notes

Select this component when designing systems that demand high write endurance and immediate data retention without battery maintenance. Ensure the host microcontroller supports the I2C protocol and can operate within the specified 3.0 V to 5.5 V voltage range. Consider the 8-pin SOP package dimensions for PCB layout constraints and verify that the application environment remains within the -40°C to +85°C operating temperature limits.

Memory IC Part Context

This part belongs to the MB85RC04V series of FeRAM devices from RAMXEED, formerly Fujitsu Semiconductor. The series is designed to replace EEPROMs and battery-backed SRAMs in applications requiring high reliability and speed. The MB85RC04V specifically offers 4 Kbit capacity with I2C connectivity, providing a compact solution for small-scale data storage needs in industrial and consumer electronics.

Memory IC Replacement Considerations

Direct substitutes include other parts within the MB85RC04V family such as MB85RC04VPNF-G-JNE1 for tube packaging or MB85RC04VPNF-G-AMERE2 for tape and reel options. Verify pin compatibility and electrical characteristics before swapping packages.

Memory IC FAQ

Does the MB85RC04V require an acknowledge polling sequence after writing data?

No, the device performs high-speed write operations and does not require any waiting time or acknowledge polling sequence after issuing a stop condition, unlike EEPROMs.

How is the device address configured on the I2C bus?

The device address is determined by the logic levels on the A1 and A2 pins, allowing up to four devices to be connected to the same bus. These pins are internally pulled down if left open.

What happens to the write operation if the WP pin is set to a high level?

Setting the WP pin to a high level disables all writing operations to the memory array. Reading operations remain enabled regardless of the WP pin state.