MB85RS256A Datasheet, PDF (1/20 Pages) Fujitsu Component Limited. – Memory FRAM 256 K (32 K x 8) Bit SPI

FUJITSU SEMICONDUCTOR
DATA SHEET
Memory FRAM
DS501-00007-0v01-E
256 K (32 K × 8) Bit SPI
MB85RS256A
■ DESCRIPTION
MB85RS256A 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 non-
volatile memory cells.
MB85RS256A adopts the Serial Peripheral Interface (SPI).
The MB85RS256A is able to retain data without using a back-up battery, as is needed for SRAM.
The memory cells used in the MB85RS256A 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.
MB85RS256A does not take long time to write data unlike Flash memories nor E²PROM, and MB85RS256A
takes no wait time.
■ 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
: 25 MHz (Max)
: SPI (Serial Peripheral Interface)
Correspondent to SPI mode 0 (0, 0) and mode 3 (1, 1)
: −40 °C to +85 °C
: 10 years (+55 °C)
: 10 Billion Read/writes
: 8-pin plastic SOP (FPT-8P-M02)
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2011.6