MB85RC04VPNF-G-AME2

Memory IC Overview

The MB85RC04VPNF-G-AME2 is a 4 Kbit (512 words x 8 bits) Ferroelectric Random Access Memory (FeRAM) utilizing an I2C serial interface. It operates within a supply voltage range of 3.0 V to 5.5 V and supports clock frequencies up to 1 MHz. The device features a write endurance of at least 10^12 cycles per byte and data retention exceeding 10 years at +85°C. It is housed in an 8-pin plastic SOP package with a 150mil width.

Memory IC Feature Summary

• Nonvolatile memory cells retain data without backup batteries, combining high-speed access with power-off storage.
• I2C two-wire serial interface allows connection of multiple slave devices using hardware address pins A1 and A2.
• Write operations complete immediately upon receiving the stop condition, eliminating the need for polling sequences required by Flash or EEPROM.
• Hardware write protection via the WP pin disables writing while maintaining read access.

Memory IC Applications

• Data logging systems requiring frequent updates
• Configuration storage in industrial controllers
• Smart metering applications
• Embedded systems needing battery-free nonvolatile storage

Memory IC Procurement Notes

Verify the specific suffix AME2 corresponds to the tray packaging format as defined in the ordering information. Confirm moisture sensitivity level 3 compliance and reflow soldering requirements prior to assembly. Ensure the master controller supports the standard I2C protocol timing constraints specified for the operating voltage range.

Memory IC Selection Notes

Select this component when a small memory capacity of 512 bytes is sufficient for application needs. Choose this part over EEPROM if higher write endurance and faster write speeds are critical. Ensure the system design accommodates the 3.0 V to 5.5 V supply range and provides necessary pull-up resistors for the SDA and SCL lines.

Memory IC Part Context

This part belongs to the MB85RC04V series of FeRAM devices manufactured by RAMXEED. The manufacturer continues to support existing Fujitsu Semiconductor part numbers under the new brand identity. The series offers a drop-in replacement capability for legacy I2C-based nonvolatile memory solutions in compact surface-mount packages.

Memory IC Replacement Considerations

MB85RC04VPNF-G-JNE1

Memory IC FAQ

Does the MB85RC04VPNF-G-AME2 require an acknowledge polling sequence after writing?

No, the device performs high-speed write operations that complete immediately after the stop condition, so no polling wait time is required.

How many devices can be connected to the same I2C bus?

Up to four devices can be connected to the same data bus, distinguished by the external hardware settings on pins A1 and A2.

What is the function of the WP pin?

The Write Protect (WP) pin disables all writing operations when set to a high level, while reading remains enabled regardless of the pin state.