Rohm (headquartered in Kyoto, Japan), a world-renowned semiconductor manufacturer, has developed a data recording system that can stably store and write data in harsh environments for the factory settings of on-board cameras and sensors, the pop-up recording of airbags, and FA equipment and servers that need to be powered on for a long time EEPROM "br24h-5ac series" that supports I2C bus * 1 and 125 ℃ operation. In the field of on-board and industrial equipment, due to the requirements of safety and traceability management, it is necessary to record the system operation data in the nonvolatile memory * 2 in the system. Among them, compared with nonvolatile flash memory, nonvolatile EEPROM memory can store and write data more stably in harsh environment. Therefore, in the field of on-board and industrial equipment, it is often used in applications with relatively high reliability requirements such as on-board camera and airbag, FA equipment and server. As a semiconductor manufacturer with more than 20 years of EEPROM development history, Rohm is committed to developing unique and highly reliable storage units and providing customers with high-quality products, which has been highly praised in various fields of vehicle, industrial equipment and consumer electronics. This time, in the EEPROM supporting I2C bus, a new series of products for on-board and industrial equipment will help to reduce the production hours before leaving the factory. This series of products adopts Rohm's own data writing / reading circuit technology, realizes 3.5ms (milliseconds) high-speed writing and supports 125 ℃ EEPROM. Compared with the 5ms writing speed of ordinary products, the writing time can be reduced by 30%. For example, in the manufacturing process of electronic equipment, in the case of 256kbit initial data writing (512 writing processing) for 100000 products, the occupation time of the factory production line can be reduced by about 1 day. In addition, the number of erasures guaranteed by ordinary products is 1 million, while this series of products is as high as 4 million, which not only helps to prolong the service life of electronic equipment, but also is very suitable for equipment that must frequently erase data. This series of products has gradually started mass production with a monthly production scale of 1 million since October 2020 (the unit price of the sample is 200 yen / piece, excluding tax). It can be purchased from ameya360, sekorm and rightIC online sales platforms, starting from 1 piece. In the future, Rohm will continue to expand the product lineup of this series, and will also develop products supporting SPI bus, so as to contribute to improving the reliability of various on-board and industrial equipment and reducing production hours before leaving the factory“ Br24h-5ac series "realizes the following four characteristics by reducing the manufacturing differences in the characteristics of the storage unit, giving full play to the storage performance and adopting advanced data write / read circuit technology, which helps to improve the efficiency of the electrical system. 1. It supports I2C bus and 3.5ms ultra fast writing speed, which reduces the initial writing time of electronic equipment before leaving the factory by 30%. As an EEPROM supporting I2C bus and 125 ℃, br24h-5ac series realizes high-speed writing of 3.5ms (milliseconds). Compared with the 5ms writing speed of ordinary products, the writing time can be reduced by 30%, which helps to reduce the initial writing time of EEPROM before electronic equipment leaves the factory and improve the reliability of emergency data recording system. For example, in the manufacturing process of electronic equipment, when the initial data of 256kbit is written to 100000 products, the occupation time of the factory production line can be reduced by about 1 day compared with ordinary products (ordinary products: 5ms) × 100000 sets × 512 times = about 71 hours, new product: 3.5ms × 100000 sets × 512 times = about 50 hours). 2. Support 4 million erasures, which helps to prolong the service life of electronic products. As an EEPROM supporting 125 ℃, this series of products has achieved a high level of 4 million erasures in the industry. Compared with 1 million erasures of ordinary products, this series of products is 4 times higher, which not only helps to prolong the service life of electronic equipment, but also is very suitable for the application of status records that must frequently erase data. 3.1.7v low voltage operation is also suitable for battery driven applications. As an EEPROM supporting 125 ℃, this series of products support 1.7V low voltage operation. Therefore, it supports not only general 5V and 3V applications, but also 1.8V low voltage applications requiring battery drive such as keyless entry system. 4. Meet the global high reliability requirements. This series of products comply with the international standard for reliability of automotive electronic products aec-q100. It not only supports the 125 ℃ operation of the high reliability product standard, but also all products in this series are equipped with ECC (error check and correction) function. In case of accidental failure of memory, It can protect important data. In addition, due to the standard EEPROM pin configuration and the continuous improvement of the product lineup of common chip packaging and capacity (gradually developing), it can easily replace the existing products. Responsible editor: PJ, read the full text
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