Fujitsu MB85RS256
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. 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.| Part No. | MB85RS256 |
|---|---|
| Datasheet | MB85RS256 Download |
| Manufacturer |  Fujitsu |
| Description | 256 K (32 K X 8) Bit SPI |
| Buy | Stock & Price |
DESCRIPTION
MB85RS256 adopts the Serial Peripheral Interface (SPI). MB85RS256 does not take long time to write data unlike Flash memories nor E2PROM, and MB85RS256 takes no wait time.●
FEATURES
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● 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) Copyright©2005-2009 FUJITSU MICROELECTRONICS LIMITED All rights reserved 2009.8 MB85RS256
● PIN ASSIGNMENT (TOP VIEW) CS 1 8 VCC SO 2 7 HOLD WP 3 6 SCK GND 4 5 SI (FPT-8P-M02)
● PIN FUNCTIONAL DESCRIPTIONS Pin No. Pin Name Functional description Chip Select This is an input pin to make chips select. When CS is “H”, device is in deselect (standby) status as long as device is not write status internally, and SO becomes High-Z.
