Low-voltage SPI FRAM memory chips in compact SO8 package
Manufacturer: fujitsu
# MB85RS64A Product Series Introduction
## 1. Overview
The MB85RS64A is a remarkable product series that belongs to the realm of non - volatile memory solutions. It combines the advantages of high - speed operation and non - volatility, offering a reliable and efficient storage option for a wide range of applications. This series is designed to meet the growing demands of modern electronic systems where data integrity, fast access, and long - term storage are crucial.
## 2. Key Features
### 2.1 Non - Volatility
One of the most significant features of the MB85RS64A series is its non - volatile nature. Unlike traditional volatile memory such as SRAM, which loses its data when the power is turned off, the MB85RS64A retains stored information even in the absence of power. This makes it ideal for applications where data must be preserved during power outages, system resets, or other interruptions. For example, in industrial control systems, critical configuration data and process variables can be safely stored in the MB85RS64A, ensuring that the system can resume normal operation without data loss.
### 2.2 High - Speed Operation
The MB85RS64A offers extremely fast read and write operations. It can achieve access times comparable to those of SRAM, enabling rapid data transfer between the memory and the host system. This high - speed performance is essential for applications that require real - time data processing, such as high - speed data acquisition systems, digital signal processing (DSP) applications, and high - frequency communication devices. In a DSP system, the ability to quickly access and update data in the MB85RS64A allows for efficient signal processing algorithms to be executed without significant delays.
### 2.3 Large Storage Capacity
The series provides a storage capacity of 64 kilobits (8 kilobytes). This relatively large capacity makes it suitable for storing a substantial amount of data, including program code, sensor readings, and user - generated content. For instance, in a portable medical device, the MB85RS64A can store patient data, calibration information, and device settings, providing sufficient space for long - term data logging and system configuration.
### 2.4 Low Power Consumption
The MB85RS64A is designed with low power consumption in mind. It consumes minimal power during both active and standby modes, which is beneficial for battery - powered devices. In wearable devices, where power efficiency is a critical factor, the low power consumption of the MB85RS64A helps to extend the battery life, allowing users to use the device for longer periods without frequent recharging.
### 2.5 High Endurance
The product series offers a high endurance rating, meaning it can withstand a large number of read and write cycles. This makes it suitable for applications that involve frequent data updates, such as automotive electronics, where the memory may be used to store diagnostic information, vehicle settings, and driving data. The high endurance ensures the long - term reliability of the memory, reducing the risk of data loss due to wear - out.
## 3. Technical Specifications
### 3.1 Memory Organization
The MB85RS64A is organized as 8192 words of 8 bits each. This organization allows for easy addressing and data access, making it compatible with a wide range of microcontrollers and other host systems.
### 3.2 Interface
It features a Serial Peripheral Interface (SPI), which is a widely used and standardized interface in the electronics industry. The SPI interface provides a simple and efficient way to communicate with the memory, allowing for high - speed data transfer between the host and the MB85RS64A. The interface supports both 3 - wire and 4 - wire operation modes,
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