FRAM - 64 K (8K × 8) Bit FRAM with SPI interface

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MB85RS64A is a FRAM (Ferroelectric Random Access Memory) 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.
MB85RS64A adopts the Serial Peripheral Interface (SPI).
The MB85RS64A is able to retain data without using a back-up battery, as is needed for SRAM.
The memory cells used in the MB85RS64A can be used for 10^10 read/write operations, which is a significant improvement over the number of read and write operations supported by Flash memory and E2PROM. MB85RS64A does not take long time to write data unlike Flash memories nor E2PROM, and MB85RS64A takes no wait time.


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Bit configuration : 8192 words 8 bits
Operating power supply voltage : 3.0 V to 3.6 V
Operating frequency : 20 MHz (Max)
Serial Peripheral Interface (SPI) - Correspondent to SPI mode 0 (0,0) and mode 3 (1,1)
Operating temperature range : − 40 C to + 85 C
Data retention : 10 years ( + 55 C)
High endurance : 10 billion read/writes
Package : 8-pin plastic SOP (FPT-8P-M02)

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