MB85RC512LYPN-GS-AME1

Memory IC Overview

The MB85RC512LYPN-GS-AME1 is a 512Kbit (64 K x 8) Ferroelectric Random Access Memory (FeRAM) integrated circuit manufactured by RAMXEED. It features an I2C serial interface and operates within a supply voltage range of 1.7 V to 1.95 V. The device supports communication frequencies up to 3.4 MHz in High Speed Mode and 1 MHz in Fast Mode Plus. It is designed for operation across an ambient temperature range of -40°C to +125°C and complies with AEC-Q100 automotive standards.

Memory IC Feature Summary

• Nonvolatile memory architecture utilizing ferroelectric process technology that retains data without backup batteries.
• High endurance capability exceeding 10^13 write cycles per byte, significantly outperforming standard Flash or EEPROM technologies.
• Elimination of programming wait times and polling sequences after write operations, enabling immediate standby state entry.
• Hardware-based write protection via the WP pin, allowing selective disabling of write operations while maintaining read access.

Memory IC Applications

• Automotive electronic systems requiring compliance with AEC-Q100 reliability standards.
• Industrial control applications operating at elevated temperatures up to 125°C.
• Data logging systems requiring high-speed writes without polling delays.
• Embedded memory solutions for battery-free nonvolatile storage.

Memory IC Procurement Notes

Verify the specific ordering suffix against official documentation, as suffixes determine package type and shipping form. Confirm availability status directly with the manufacturer or authorized distributors, as stock levels fluctuate. Ensure the selected variant matches the required voltage and temperature specifications for the target application environment.

Memory IC Selection Notes

Select this component when high endurance and fast write speeds are critical compared to traditional Flash or EEPROM memories. Choose the SOP-8 package for standard surface-mount assembly or DFN for compact layouts. Ensure the system design accommodates the narrow 1.7 V to 1.95 V supply voltage window and includes necessary pull-up resistors for the I2C bus lines.

Memory IC Part Context

This part belongs to the MB85RC512LY series of FeRAM devices from RAMXEED, formerly Fujitsu Semiconductor Memory Solutions Limited. The series maintains original Fujitsu part numbering conventions while offering continued support and manufacturing under the RAMXEED brand identity.

Memory IC Replacement Considerations

Direct substitutes include other variants within the MB85RC512LY family such as MB85RC512LYPNF-GS-BCE1 (Tube) or MB85RC512LYPN-GS-AWE1 (DFN Tray). Verify compatibility regarding package dimensions and shipping forms before substitution.

Memory IC FAQ

Does the MB85RC512LY require an acknowledge polling sequence after writing data?

No, the device does not require acknowledge polling. It performs high-speed write operations, allowing the master to proceed immediately after the stop condition without waiting for internal write completion.

How is the device address configured on the I2C bus?

The device address consists of a fixed 4-bit type code (1010), a 3-bit address code determined by external pins A0, A1, and A2, and a 1-bit read/write bit. Up to eight devices can be connected using different combinations of these address pins.

What is the function of the Write Protect (WP) pin?

When the WP pin is set to a high level, the entire memory array is write-protected. When low, writing is enabled. The pin is internally pulled down to ground, so an open pin state defaults to write-enabled.