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MB85RS256 - 256 K (32 K X 8) Bit SPI

General Description

MB85RS256 is a FRAM (Ferroelectric Random Access Memory) chip in a configuration of 32,768 words × 8 bits, using the ferroelectric process and silicon gate CMOS process technologies for forming the nonvolatile memory cells.

MB85RS256 adopts the Serial Peripheral Interface (SPI).

Key Features

  • Bit configuration Operating power supply voltage Operating frequency Serial Peripheral Interface Operating temperature range Data retention High endurance Package : : : : : : : : 32,768 words × 8 bits 3.0 V to 3.6 V 15 MHz (Max) SPI (Serial Peripheral Interface) Correspondent to SPI mode 0 (0, 0) and mode 3 (1, 1).
  • 20 °C to +85 °C 10 years (+55 °C) 10 Billion Read/writes 8-pin plastic SOP (FPT-8P-M02) Copyri.

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Other Datasheets by Fujitsu Semiconductor Limited

Part Number Description
MB85RS256A 256 K (32 K X 8) Bit SPI
MB85RS256B 256K (32K x 8) Bit SPI
MB85RS2MT 2M (256K x 8) Bit SPI
MB85RS128A 128K (16 K x 8) Bit SPI
MB85RS128B 128K (16K x 8) Bit SPI

Full PDF Text Transcription (Reference)

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FUJITSU MICROELECTRONICS DATA SHEET DS05-13105-3E Memory FRAM CMOS 256 K (32 K × 8) Bit SPI MB85RS256 ■ DESCRIPTION MB85RS256 is a FRAM (Ferroelectric Random Access Memory) chip in a configuration of 32,768 words × 8 bits, using the ferroelectric process and silicon gate CMOS process technologies for forming the nonvolatile memory cells. MB85RS256 adopts the Serial Peripheral Interface (SPI). The MB85RS256 is able to retain data without using a back-up battery, as is needed for SRAM. The memory cells used in the MB85RS256 can be used for 1010 read/write operations, which is a significant improvement over the number of read and write operations supported by Flash memory and E2PROM.