MB85RC1MTPNF-G-JNERE1

Memory IC Overview

The MB85RC1MTPNF-G-JNERE1 is a 1 Mbit (128 K x 8) ferroelectric random access memory (FeRAM) integrated circuit manufactured by RAMXEED. It features an I2C serial interface with support for High Speed Mode up to 3.4 MHz and Fast Mode Plus up to 1 MHz. The device operates within a supply voltage range of 1.8 V to 3.6 V and supports an ambient temperature range from -40°C to +85°C. It utilizes an 8-pin plastic SOP package.

Memory IC Feature Summary

• Nonvolatile memory architecture that retains data without backup batteries and eliminates the need for write polling sequences typical in Flash or EEPROM technologies.
• High read/write endurance capability significantly exceeding standard nonvolatile memory products, ensuring long-term reliability for frequent data logging applications.
• Integrated hardware write protection via the WP pin allows complete locking of the memory array against unintended writes while maintaining read access.

Memory IC Applications

• Data logging systems requiring high endurance and fast write speeds
• Embedded controllers needing battery-free nonvolatile storage
• Industrial instrumentation with frequent parameter updates

Memory IC Procurement Notes

Verify the specific suffix JNERE1 corresponds to the embossed carrier tape packaging format with a minimum shipping quantity of 1500 units. Confirm RoHS compliance and REACH status requirements for your region before finalizing procurement orders.

Memory IC Selection Notes

Select this component when a 1 Mbit capacity is required alongside I2C connectivity. Ensure the system design accommodates the 1.8 V to 3.6 V operating voltage range. Consider the 8-pin SOP footprint for PCB layout constraints and verify that the master controller supports the desired I2C clock frequency modes.

Memory IC Part Context

This part belongs to the MB85RC1MT series of FeRAM devices produced by RAMXEED Limited, formerly Fujitsu Semiconductor Memory Solutions Limited. The series maintains original Fujitsu part numbering conventions while offering continued product support and manufacturing under the new corporate identity.

Memory IC Replacement Considerations

No direct public substitute part numbers are documented in the provided datasheet. Verify compatibility with existing designs if considering alternative manufacturers, as interface timing and pin configurations may differ.

Memory IC FAQ

Does the MB85RC1MT require an acknowledge polling sequence after writing?

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

How is the Write Protect function implemented?

The entire memory array can be write-protected by setting the WP pin to the 'H' level. Reading is always enabled regardless of the WP pin state. The pin is internally pulled down to 'L' (write enabled) if left open.