Renesas Electronics has introduced the new RH850 family of 32-bit microcontrollers (MCUs) for automotive applications. The RH850 is based on 40-nm MONOS (metal oxide nitride oxide silicon) embedded flash technology, for which the company is claiming it is first semiconductor supplier to provide this technology in the automotive sector. The RH850 family of MCUs is based on the new RH850 32-bit core, which provides ultra low power process technology with the computing power of a leading 32-bit core.
The RH850 family is the latest in a series of devices developed by Renesas Electronics following the merger of Renesas Technology and NEC Electronics in April 2010.
Renesas’ RH850 addresses major trends of the changing automotive market. These include functional safety requirements from ASIL A to ASIL D level, integration of security functions and especially low power consumption, to support environmental considerations such as CO2 reduction. The RH850 family covers performance classes from 64 MHz up to 320 MHz as single core performance. Multi-core systems will achieve even higher overall performance.
The embedded flash memory will range from 256 kB to 8 MB, while additional blocks for data flash, emulating EEPROM functionality, are also included and deliver write/erase endurance values of more than 125k write/erase cycles at data retention times of a minimum of 20 years.
The roll-out will involve multiple, application-tailored product series, each equipped with the RH850 32-bit core architecture. The series will span single-core, dual-performance cores, dual lock-step cores, and multiple-core architectures, addressing virtually all 32-bit MCU performance and safety requirements in the various automotive segments. Combined with scalable functional IP blocks, memory, and pin counts, Renesas’ series concept allows customers to select the most appropriate product for their needs, with flexibility to up- or down-scale without changing the application software.
To ensure software compatibility for customers, all product series are based on the same platform development concept, re-using the same IPs across the entire RH850 generation.
One integrated development environment (IDE) will support the entire RH850 family of products, enabling eased migration from legacy automotive products as well as a further reduction of overall development investment.
Samples of Renesas’ first RH850 family of MCU products will be available in autumn 2012. Mass production is scheduled to begin in 2014. (Availability is subject to change without notice.)
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