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AT27BV020-15JI application field and working principle

Introduction

The AT27BV020-15JI is an embedded nonvolatile memory designed to offer high data security and a wide application field. This embedded addressable nonvolatile memory is a device that offers high reliability and performance, while being able to communicate with two types of interface.

Memory Technology

The AT27BV020-15JI is an embedded nonvolatile memory that is made of multiple types of Flash memory cells, such as NOR Flash, MLC, NAND Flash and EEPROM. As such, it is divided into three separate segments, each for its own purpose.

The AT27BV020-15JI offers both High Performance and Low Cost, with a wide range of reliability. This device brings together nonvolatile memory Flash components and DRAM, resulting in a strong combination capable of storing data securely for long periods of time.

Application Field

The AT27BV020-15JI is specifically designed for embedded systems, such as those used in automotive, consumer electronics and industrial automation. It can be used as a data recording and data storage device, thus making it suitable for use in high-usage systems.

Moreover, the AT27BV020-15JI offers a wide range of features and applications, such as the extended configuration capability and the high-speed flash operations, making it an ideal choice for large-scale industrial applications, such as aircraft control, microcontroller-based controls, automobiles, and graphics accelerators.

Working Principle

The AT27BV020-15JI is an online chip and is integrated within the system. This chip is typically connected to a controller, which handles the transmission of data between the chip and the system. It has two different types of interface for connecting to the controller, being one parallel and the other serial. In addition, the chip supports read and write functions.

The AT27BV020-15JI uses a protocol called Serial Peripheral Interface (SPI), which uses four control signals for communication between the chip and the controller. Data stored in the chip’s flash memory cells is first accessed by the controller, which reads the data and then passes it to the chip. Once the chip has received the data, it will convert it into the appropriate format and then write it into the flash memory.

In order to protect data stored in the chip’s flash memory cells, it also contains a backup system known as ECC (Error Correction Code). This ECC automatically detects any errors present in the data and corrects them to ensure data integrity.

Conclusion

The AT27BV020-15JI is a popular choice for industrial embedded systems due to its wide application field and powerful features. By combining nonvolatile memory components and DRAM, this chip is able to offer top-level data security as well as fast data transfer. It offers great reliability and performance, and is suitable for use in any industrial application requiring a large amount of data storage.

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