FRAM with 64 K (8 K × 8) Bit I2C interface. SOP 8pin package.

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Product Information

The following product is no recommended for new designs. Please use this updated/replacement part:
The Fujitsu MB85RC64 is a 64K Bit FRAM (Ferroelectric Random Access Memory) Stand-Alone chip in a configuration of 8,192 words × 8 bits, using the ferroelectric process and silicon gate CMOS process technologies for forming the nonvolatile memory cells. The MB85RC64 adopts the two-wire serial interface (compatible with the world standard I2C bus). Unlike SRAM, the MB85RC64 is able to retain data without using a data backup battery. The read/write endurance of the non-volatile memory cells used for the MB85RC64 has improved to be at least 1010 cycles, significantly out performing Flash memory and E2PROM in the number. The MB85RC64 does not need a polling sequence after writing to the memory such as the case of Flash memory nor E2PROM.


Bit configuration : 64K Bit (8,192 words 8 bits)
Operating power supply voltage : 2.7 V to 3.6 V
Operating frequency : 400 kHz (Max)
Two-wire serial interface : I2C-bus specification ver. 2.1 compliant, supports Standard-mode/Fast-mode.
Fully controllable by two ports: serial clock (SCL) and serial data (SDA).
Operating temperature range : − 40 C to +85 C
Data retention : 10 years ( + 55 C)
Read/write endurance : 10^10 times/bit (Min)
Package : Plastic / SOP, 8-pin (FPT-8P-M02)
Low power consumption : Operating current 0.15 mA (Max: @400 kHz), Standby current 5 μA (Typ)


Operating Temp
-40 to +85 °C
Package Details
8-pin SOP
RAM Size
64 KBytes
3.6 MAX V
2.7 MIN V


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