Renesas Electronics announced that it has developed a new 32-bit microcontroller, the V850E2/PJ4-E, which incorporates an on-chip resolver sensor interface. The new MCU realizes both higher performance and lower system cost for automotive control systems including motor control for HEV/EV and other automotive applications. With the combination of P Series' dual core lockstep and on-chip resolver sensor interface, the V850E2/PJ4-E MCU is compliant with the ISO 26262 safety standard and easily realizes lower system costs.
The integrated on-chip resolver sensor interface corresponds to a wide range of resolver sensors, eliminating the need for an external resolver-digital (R/D) converter. An excitation signal generating function for resolver sensor is also equipped to offer optimum system configuration for driving motor control. The V850E2/PJ4-E device also includes many peripheral functions including: a high-precision motor control timer that complies with control of various motors, and an A/D converter with synchronized sample-and-hold function, which enables more precise measurement of data from each sensor. The CPU of the new V850E2/PJ4-E MCU adopts a dual core lockstep system, in which a comparator continually calculates and detects failures, making it possible to achieve a real-time high failure detection rate via only hardware. The new MCU is suitable for a wide range of applications, especially those that require motor control, which need to meet the high safety requirements of ISO 26262.
With 1 MB of ROM, 80 KB of RAM and 128 MHz CPU frequency, the V850E2/PJ4-E MCU achieves the higher performance needed for fast diversified controlling functions. Communication with other controlling units is also available. Standard CAN, SCI and UART are available for communication functions. The new MCU can operate in environments between −40 to + 125°C. It also contains a regulator circuit that enables single power supply operation at 5V with an external transistor.
