Renesas Technology America Inc. has announced the addition to the SuperH Family of the SH72546R, a powertrain control MCU that combines the industry’s largest on-chip flash memory capacity of 3.75MB and high-speed operation at 200MHz.
The SH72546R is the third in Renesas Technology’s line of high-performance control MCUs employing the 90nm process node to integrate large-capacity flash memory. It is designed for powertrain control applications, which demand more fine-grained and agile response to achieve environmental goals such as reduced exhaust emissions and improved fuel economy. It retains the 200MHz high-speed operation of the SH72544R, while expanding the on-chip flash memory size by 50 percent.
The SH72546R is built around the SH-2A high-performance CPU core, which has a superscalar that enables it to execute two instructions simultaneously and a Harvard architecture. This enables it to achieve processing performance of 400MIPS when operating at 200MHz.
The SH72546R is fully compatible with the earlier SH72546RFCC and SH72544R, while including a large number of peripheral functions for engine control applications.
The ATU-III multifunction timer unit, an on-chip peripheral function, is useful in engine or transmission control. It supports 32-bit input capture/output compare, one-shot pulse output, and pulse width modulation (PWM) output, among other functions, and can generate up to 106 pulse outputs. The 12-bit A/D converter supports 37 input channels, enabling high-speed conversion of analog data from multiple sensors. Many interfaces are provided, including a CAN interface for vehicle networks and a high-speed serial interface for connecting external devices. These on-chip peripheral functions and interfaces help to reduce the total number of components in the system.
The package is a 272-pin P-BGA (21x21mm), and full pin compatibility is maintained with the SH72546RFCC and SH72544R. The E10A-USB on-chip debugging emulator is available as a development tool. Compact in size, it runs off USB bus power and requires no external power supply.
Renesas Technology
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