SANTA CLARA, Calif., April 5, 2016 — Renesas Electronics Corporation (TSE: 6723), a premier supplier of advanced semiconductor solutions, today announced the 32-bit RH850/E1M-S2 microcontrollers (MCUs) for automotive powertrain control applications, such as engine or transmission control, that provide high performance and advanced functionality to enable improved fuel efficiency. The RH850/E1M-S2 MCUs include four product versions, including the most high-end R7F701216EABA (BGA304, 320MHz).
In recent years, regulations covering automobile fuel efficiency and CO2 emissions have become increasingly strict. Some current regulations(Note 1) stipulate that CO2 emissions must be reduced by 10 percent from their current level by 2018. To meet these targets, engine control systems must optimize the ignition and fuel injection timing to match a variety of conditions, such as current combustion and driving status. Transmission control systems, for their part, must instantly select the optimal gear ratio to match the driving conditions, which change moment by moment, in order to minimize power loss in the transmission.
The new RH850/E1M-S2 MCUs bring more precise control to powertrain control systems by boosting processing performance to accommodate the increasing number of calculations required. At the same time, the RH850/E1M-S2 MCUs boost network performance to match the larger volume of control data resulting from the use of more sensors and provides stronger security functionality to prevent unauthorized access to control systems.
The RH850/E1M-S2 MCUs are built around Renesas’ new and improved G3MH CPU core. The G3MH core has improved access latency towards memory and peripheral functions while retaining an industry-leading operating frequency of 320 MHz at Tj (Note 2) = 150°C. This results in an improved engine control system responsiveness of approximately 30 percent (Note 3) compared with earlier Renesas products.
To protect engine and transmission systems from unauthorized access and ensure safe control, the RH850/E1M-S2 MCUs are equipped with an Intelligent Cryptographic Unit—Slave (ICU-S) hardware security module that complies with the SHE/EVITA-Light (Note 6) standard for automotive security. It provides functions such as data encryption like Cypher Message Authentication (CMAC) and random number generation.
The new RH850/E1M-S2 MCUs are supported with a code generator tool that automatically produces C source code for drivers, based on settings entered via a Graphical User Interface (GUI), making it easier for system manufacturers to develop applications. In addition, model-based design development is supported in collaboration with Renesas partner vendors. This contributes to shorter development cycles, even though the Electronic Control Units (ECUs) used in automobiles become more complex.
Samples of the RH850/E1M-S2 are available now. Mass production is scheduled to begin in September 2017, and is expected to reach a volume of 100,000 units per month by April 2018. (Availability is subject to change without notice.)
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