Design

Faster 125°C operation compatible I²C bus EEPROMs

19th January 2021
Alex Lynn

ROHM’s newly introduced 125°C operation compatible I²C bus EEPROMs, BR24H-5AC series targets applications that require data storage under harsh environments, such as factory settings for onboard cameras and sensors, airbag operating history, and data logging for always-on operating industrial automation systems and servers.

The BR24H-5AC series of 125°C operation compatible EEPROMs has achieved a writing time of 3.5ms by implementing original data writing and reading circuit technology, reducing writing time by 30% compared to the 5ms of conventional products. Additionally the BR24H-5AC series guarantees up to four million writing cycles by data endurance, which not only extends application service life, but is well suited for data loggings requiring frequent data rewrites.

In the automotive and industrial equipment sector, safety and traceability requirements make it necessary to store the operating history in non-volatile memory in the system. Among these, EEPROMs are typically adopted over other types of non-volatile memory such as flash memory in applications that require high reliability, including onboard cameras, airbags, industrial automation systems and servers, due to their ability to reliably write and store data under harsh conditions.

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